ABSTRACT Shrews (Mammalia: Eulipotyphla: Soricidae) reach the southern limit of their New World distribution in the Andes and eastern coastal highlands of northern South America. South of Honduras, the family is represented only by species of the genus Cryptotis Pomel, 1848. In South America, soricids are restricted to moist, high-elevation environments above 1000 m, and their distribution appears to be discontinuous. Study of specimens from a previous gap in the known geographical range of shrews in the Central Cordillera of southwestern Colombia reveals the presence of two unique populations that are distinguishable from each other and their congeners by a combination of morphological and morphometrical characters. They are described herein as, Cryptotis huttereri, n. sp. and Cryptotis andinus, n. sp. Both species are members of the Cryptotis thomasi group, one of five species groups of small-eared shrews defined partly on the basis of postcranial morphology and potential locomotor behavior. Although species in the C. thomasi group share similar postcranial architecture, as exemplified by the morphology of the forelimb, the group appears to be polyphyletic, implying convergence in locomotor behavior, possibly one uniquely adapted for Andean-type montane habitats. Recognition of C. huttereri and C. andinus brings the total number of known South American soricids to 19 species, with 11 species occurring in Colombia. Of those, seven species are endemic to that country.
{"title":"Two New Species of Small-Eared Shrews of the Genus Cryptotis Pomel, 1848, from the Colombian Andes (Mammalia: Eulipotyphla: Soricidae)","authors":"N. Woodman","doi":"10.2992/007.088.0303","DOIUrl":"https://doi.org/10.2992/007.088.0303","url":null,"abstract":"ABSTRACT Shrews (Mammalia: Eulipotyphla: Soricidae) reach the southern limit of their New World distribution in the Andes and eastern coastal highlands of northern South America. South of Honduras, the family is represented only by species of the genus Cryptotis Pomel, 1848. In South America, soricids are restricted to moist, high-elevation environments above 1000 m, and their distribution appears to be discontinuous. Study of specimens from a previous gap in the known geographical range of shrews in the Central Cordillera of southwestern Colombia reveals the presence of two unique populations that are distinguishable from each other and their congeners by a combination of morphological and morphometrical characters. They are described herein as, Cryptotis huttereri, n. sp. and Cryptotis andinus, n. sp. Both species are members of the Cryptotis thomasi group, one of five species groups of small-eared shrews defined partly on the basis of postcranial morphology and potential locomotor behavior. Although species in the C. thomasi group share similar postcranial architecture, as exemplified by the morphology of the forelimb, the group appears to be polyphyletic, implying convergence in locomotor behavior, possibly one uniquely adapted for Andean-type montane habitats. Recognition of C. huttereri and C. andinus brings the total number of known South American soricids to 19 species, with 11 species occurring in Colombia. Of those, seven species are endemic to that country.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"67 11","pages":"203 - 234"},"PeriodicalIF":1.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139272609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Henrici, D. Berman, S. Sumida, Adam K. Huttenlocker
ABSTRACT Halgaitosaurus gregarius is a new genus and species of araeoscelidian diapsid reptile based on numerous specimens from the Upper Carboniferous (Virgilian, Gzhelian) Birthday bonebed, Halgaito Formation, Valley of the Gods, Bears Ears National Monument, Utah, USA. An ontogenetic series is represented by juvenile to fully ossified adult specimens. halgaitosaurus gregarius is distinguished from other araeoscelidians by relative sizes of maxillary teeth, a small contribution of the jugal to the ventral margin of the skull, and eight cervical vertebrae. A phylogenetic analysis suggests that halgaitosaurus and Araeoscelis Williston, 1910, form a clade in a monophyletic Araeoscelidia, with Petrolacosaurus Lane, 1945, and Zarcasaurus Brinkman, Berman, and Eberth, 1984, forming successive sister taxa to this clade. Spinoaequalis deBraga and Reisz, 1995, places as a member of Neodiapsida. halgaitosaurus was an abundant component of the vertebrate fauna that inhabited the coastal plain on the southwestern border of the Paradox Basin in western Pangea during a relatively short period when intermittent to probable perennial streams and rivers traversed it during an otherwise semi-arid to arid climate.
ABSTRACT Halgaitosaurus gregarius is araeoscelidian diapsid reptile的一个新属和新种，其依据是来自美国犹他州熊耳国家纪念碑众神之谷哈尔盖托地层上石炭统（维吉尔统、格哲勒统）生日骨床的大量标本。哈尔盖特龙从幼年到完全骨化的成年标本代表了一个本生代系列。哈尔盖特龙与其他荒原龙的区别在于上颌牙齿的相对大小、颈骨对头骨腹缘的贡献较小以及八个颈椎。系统发生学分析表明，哈尔盖特龙和Araeoscelis Williston（威利斯顿，1910年）在单系Araeoscelidia中形成一个支系，Petrolacosaurus Lane（莱恩，1945年）和Zarcasaurus Brinkman, Berman, and Eberth（布林克曼，伯曼和埃伯斯，1984年）是这个支系的连续姐妹类群。在相对较短的时期内，当半干旱到干旱的气候条件下，间歇性到可能常年性的溪流和河流横穿泛大陆西部帕拉多克斯盆地西南边界的沿海平原时，哈尔盖特龙是脊椎动物群中的一个重要组成部分。
{"title":"Halgaitosaurus gregarius, a New Upper Carboniferous Araeoscelidian (Reptilia: Diapsida) from the Halgaito Formation, Bears Ears National Monument, Utah, USA","authors":"A. Henrici, D. Berman, S. Sumida, Adam K. Huttenlocker","doi":"10.2992/007.088.0301","DOIUrl":"https://doi.org/10.2992/007.088.0301","url":null,"abstract":"ABSTRACT Halgaitosaurus gregarius is a new genus and species of araeoscelidian diapsid reptile based on numerous specimens from the Upper Carboniferous (Virgilian, Gzhelian) Birthday bonebed, Halgaito Formation, Valley of the Gods, Bears Ears National Monument, Utah, USA. An ontogenetic series is represented by juvenile to fully ossified adult specimens. halgaitosaurus gregarius is distinguished from other araeoscelidians by relative sizes of maxillary teeth, a small contribution of the jugal to the ventral margin of the skull, and eight cervical vertebrae. A phylogenetic analysis suggests that halgaitosaurus and Araeoscelis Williston, 1910, form a clade in a monophyletic Araeoscelidia, with Petrolacosaurus Lane, 1945, and Zarcasaurus Brinkman, Berman, and Eberth, 1984, forming successive sister taxa to this clade. Spinoaequalis deBraga and Reisz, 1995, places as a member of Neodiapsida. halgaitosaurus was an abundant component of the vertebrate fauna that inhabited the coastal plain on the southwestern border of the Paradox Basin in western Pangea during a relatively short period when intermittent to probable perennial streams and rivers traversed it during an otherwise semi-arid to arid climate.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"11 5","pages":"161 - 192"},"PeriodicalIF":1.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139271215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT The Bromacker vertebrate fossil assemblage is strikingly unique compared to those of the highly fossiliferous, widespread Early Permian deposits of the USA in exhibiting: 1) total absence of aquatic and semi-terrestrial forms, 2) greatly reduced abundance and diversity of basal synapsids (“pelycosaurs”) that fulfilled the role of apex predators, and 3) high abundance and diversity of terrestrial herbivorous taxa. That is, the composition of the Bromacker vertebrate assemblage and the relative abundances of its taxa are difficult to reconcile with current knowledge of the well-documented examples of the Early Permian mixed aquatic-to-terrestrial trophic systems in the USA. The explanation given here for these unique paleobiological features is that the vertebrate assemblage reflects an adaptation to a rarely encountered paleoenvironment, the small, far inland, isolated, internally drained Tambach Basin. It is hypothesized that the Early Permian Bromacker assemblage is unique in representing an initial stage in the evolution of the modern terrestrial trophic system or food chain.
{"title":"Origin of the Modern Terrestrial Vertebrate Food Chain","authors":"D. Berman, A. Henrici, S. Sumida, Thomas Martens","doi":"10.2992/007.088.0302","DOIUrl":"https://doi.org/10.2992/007.088.0302","url":null,"abstract":"ABSTRACT The Bromacker vertebrate fossil assemblage is strikingly unique compared to those of the highly fossiliferous, widespread Early Permian deposits of the USA in exhibiting: 1) total absence of aquatic and semi-terrestrial forms, 2) greatly reduced abundance and diversity of basal synapsids (“pelycosaurs”) that fulfilled the role of apex predators, and 3) high abundance and diversity of terrestrial herbivorous taxa. That is, the composition of the Bromacker vertebrate assemblage and the relative abundances of its taxa are difficult to reconcile with current knowledge of the well-documented examples of the Early Permian mixed aquatic-to-terrestrial trophic systems in the USA. The explanation given here for these unique paleobiological features is that the vertebrate assemblage reflects an adaptation to a rarely encountered paleoenvironment, the small, far inland, isolated, internally drained Tambach Basin. It is hypothesized that the Early Permian Bromacker assemblage is unique in representing an initial stage in the evolution of the modern terrestrial trophic system or food chain.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"6 3","pages":"193 - 201"},"PeriodicalIF":1.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139274863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nyctitheres are a diverse Paleogene group of insectivorous mammals from Asia, North America, and Europe. Known mostly from their relatively unspecialized tribosphenic dentitions, various taxa currently placed in the family Nyctitheriidae have previously been considered to belong to such disparate extinct eutherian families as Leptictidae and Adapisoriculidae, and some have even been considered to be early bats. Here we describe a large collection of nyctitheres from the late Paleocene (early Clarkforkian) of Big Multi Quarry in Sweetwater County, Wyoming, USA, representing the most diverse faunal assemblage of nyctitheres currently known. Big Multi Quarry is unique among currently known Clarkforkian sites because of its excellent preservation of microvertebrates, including hundreds of specimens belonging to Eulipotyphla, Primatomorpha, Metatheria, and Multituberculata. The Big Multi fauna includes at least eight species of nyctitheres and preserves the earliest known occurrences of the genera Ceutholestes Rose and Gingerich, 1987, and Plagioctenoides Bown, 1979, as well as additional specimens belonging to the species Limaconyssus habrus Gingerich, 1987, and Wyonycteris chalix Gingerich, 1987. New species of nyctitheres from this fauna include: Ceutholestes acerbus, new species; Plagioctenoides cryptos, new species; Plagioctenodon dawsonae, new species; and Plagioctenodon goliath, new species. This large sample of nyctitheres enhances our knowledge of the anatomy of several poorly known taxa including those comprising the subfamily Placentidentinae, for which we provide an emended diagnosis.
食虫兽是一种来自亚洲、北美和欧洲的食虫哺乳动物。人们主要是从它们相对不特化的摩擦齿系而知道的，目前被归为Nyctitheriidae科的各种分类群，以前被认为属于不同的已灭绝的真兽科，如Leptictidae和Adapisoriculidae，有些甚至被认为是早期的蝙蝠。在这里，我们描述了来自美国怀俄明州斯威特沃特县大多采石场晚古新世(克拉克福克纪早期)的大量夜蛾，代表了目前已知的最多样化的夜蛾动物组合。Big Multi Quarry在目前已知的Clarkforkian遗址中是独一无二的，因为它保存了大量的微型脊椎动物，包括数百个属于真脊椎动物、原始动物、元脊椎动物和多结核动物的标本。大型多元动物群包括至少8种月牙虫，并保存了已知最早出现的Ceutholestes Rose和Gingerich属(1987)和Plagioctenoides Bown属(1979)，以及属于Limaconyssus habrus Gingerich(1987)和Wyonycteris chalix Gingerich(1987)的其他标本。本区系夜蛾属新种包括:刺蛾新种;隐花拟隐花，新种;斜齿鲨，新种;和斜齿鲨，新种。这个大样本的吸血虫增强了我们对几个鲜为人知的分类群的解剖学知识，包括那些包括胎盘亚科的分类群，为此我们提供了一个修订的诊断。
{"title":"Nyctitheriidae (Mammalia, ?Eulipotyphla) from the Late Paleocene of Big Multi Quarry, Southern Wyoming, and a Revision of the Subfamily Placentidentinae","authors":"Matthew F. Jones, K. Christopher Beard","doi":"10.2992/007.088.0202","DOIUrl":"https://doi.org/10.2992/007.088.0202","url":null,"abstract":"Nyctitheres are a diverse Paleogene group of insectivorous mammals from Asia, North America, and Europe. Known mostly from their relatively unspecialized tribosphenic dentitions, various taxa currently placed in the family Nyctitheriidae have previously been considered to belong to such disparate extinct eutherian families as Leptictidae and Adapisoriculidae, and some have even been considered to be early bats. Here we describe a large collection of nyctitheres from the late Paleocene (early Clarkforkian) of Big Multi Quarry in Sweetwater County, Wyoming, USA, representing the most diverse faunal assemblage of nyctitheres currently known. Big Multi Quarry is unique among currently known Clarkforkian sites because of its excellent preservation of microvertebrates, including hundreds of specimens belonging to Eulipotyphla, Primatomorpha, Metatheria, and Multituberculata. The Big Multi fauna includes at least eight species of nyctitheres and preserves the earliest known occurrences of the genera Ceutholestes Rose and Gingerich, 1987, and Plagioctenoides Bown, 1979, as well as additional specimens belonging to the species Limaconyssus habrus Gingerich, 1987, and Wyonycteris chalix Gingerich, 1987. New species of nyctitheres from this fauna include: Ceutholestes acerbus, new species; Plagioctenoides cryptos, new species; Plagioctenodon dawsonae, new species; and Plagioctenodon goliath, new species. This large sample of nyctitheres enhances our knowledge of the anatomy of several poorly known taxa including those comprising the subfamily Placentidentinae, for which we provide an emended diagnosis.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rodney M. Feldmann, Carrie E. Schweitzer, Silvio Casadío
New Oligocene and Miocene decapods from Argentina include four new Miocene species, Nectocarcinus verruculus, Cancer zameniscus, Chaceon marcorilobus, and Eurynome bandurriasensis, and one new Oligocene genus and species, Disspinamithrax santacruzensis. The new specimens also include an axiid (Ctenochelidae), and several previously named brachyurans. The Miocene fauna of the Estancia 25 de Mayo Formation shares some taxa with other Miocene faunas from Argentina but is distinct.
阿根廷渐新世和中新世十足类新种包括中新世4个新种Nectocarcinus verruculus、Cancer zameniscus、Chaceon marcorilobus和Eurynome bandurriasensis，渐新世1个新属和新种Disspinamithrax santacruzensis。这些新发现的标本还包括一种轴齿动物(栉鱼科)和几种以前命名的短爪动物。Estancia 25 de Mayo组中新世动物群与阿根廷其他中新世动物群共享一些分类群，但又不同。
{"title":"Oligocene and Miocene Decapoda (Crustacea: Axiidea, Anomura, Brachyura) from Southern Argentina","authors":"Rodney M. Feldmann, Carrie E. Schweitzer, Silvio Casadío","doi":"10.2992/007.088.0201","DOIUrl":"https://doi.org/10.2992/007.088.0201","url":null,"abstract":"New Oligocene and Miocene decapods from Argentina include four new Miocene species, Nectocarcinus verruculus, Cancer zameniscus, Chaceon marcorilobus, and Eurynome bandurriasensis, and one new Oligocene genus and species, Disspinamithrax santacruzensis. The new specimens also include an axiid (Ctenochelidae), and several previously named brachyurans. The Miocene fauna of the Estancia 25 de Mayo Formation shares some taxa with other Miocene faunas from Argentina but is distinct.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"46 32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135084411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT An accumulation of fleas that constitute the Hastriter flea collection includes accounts/records of 167 species over 48 years. These officially belong to the Brigham Young University flea collection. They are summarized in this treatise with identifications of new state, county, and provicincial records from the United States, Canada, and some species that extend south into México. Records included are represented by eight families that are presented in alphabetical order (Ceratophyllidae, Ctenopthalmidae, Hystrichopsyllidae, Ischnopsyllidae, Leptopsyllidae, Pulicidae, Rhopalopsyllidae, and Vermipsyllidae). Major synonomies are provided with each species (excluding very common and cosmopolitan species) with major political subdivisions following each reference/pagination. Two appendices are included that list important references (not included in synonomies) (Appendix I) and a listing of synonyms for the family Ceratophyllidae (Appendix II). Four tables are included that list new geographical records and one table that notes new host records. Seventy-eight flea species (some of the same species were new for different state, county and provincial records) accounted for 129 new U.S. state or Canadian provincial records. These also included 12 new state records. An additional 15 new host records for 13 different flea species were documented. To aid future investigations, significant research findings such as disease investigations, zoonotic disease control measures, seasonal bionomics, et cetera are annotated in the remarks.
{"title":"An Assemblage of Fleas (Siphonaptera) From Canada, México, and the United States of America, in the Hastriter Collecton (Brigham Young University)","authors":"M. Hastriter","doi":"10.2992/007.088.0102","DOIUrl":"https://doi.org/10.2992/007.088.0102","url":null,"abstract":"ABSTRACT An accumulation of fleas that constitute the Hastriter flea collection includes accounts/records of 167 species over 48 years. These officially belong to the Brigham Young University flea collection. They are summarized in this treatise with identifications of new state, county, and provicincial records from the United States, Canada, and some species that extend south into México. Records included are represented by eight families that are presented in alphabetical order (Ceratophyllidae, Ctenopthalmidae, Hystrichopsyllidae, Ischnopsyllidae, Leptopsyllidae, Pulicidae, Rhopalopsyllidae, and Vermipsyllidae). Major synonomies are provided with each species (excluding very common and cosmopolitan species) with major political subdivisions following each reference/pagination. Two appendices are included that list important references (not included in synonomies) (Appendix I) and a listing of synonyms for the family Ceratophyllidae (Appendix II). Four tables are included that list new geographical records and one table that notes new host records. Seventy-eight flea species (some of the same species were new for different state, county and provincial records) accounted for 129 new U.S. state or Canadian provincial records. These also included 12 new state records. An additional 15 new host records for 13 different flea species were documented. To aid future investigations, significant research findings such as disease investigations, zoonotic disease control measures, seasonal bionomics, et cetera are annotated in the remarks.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"88 1","pages":"13 - 90"},"PeriodicalIF":1.1,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86568965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT Spilopsyllus inaequalis inaequalis and Spilopsyllus inaequalis interrupta are common ectoparasites of species of Leporidae. Kohls (1940) suggested that there are intergrades of these subspecies in sympatric areas of southeastern Washington and Oregon, south central Idaho, and Utah. Kohl's conclusions were based on traditional morphological features of the “clasper” (basimere and telomere) and chaetotaxy of the outer surface of the hind tibia. These morphological features, and that of the aedeagus, have never been critically studied until now. The aedeagi of both taxa were examined and several consistent structures separate these closely allied species. The median dorsal lobe and apex of the sclerotized inner tube show little variation, although they are distinctly different among the sympatric populations and are consistent in peripheral populations. These characters are stable with little variation and their structure appears to be sufficiently different to potentially inhibit interbreeding that typically occurs where subspecies meet. These characters are valid distinguishing characters even when males of both species occur simultaneously on the same host. These newly reognized static characters of the aedeagus are illustrated. The lateral surface of the hind tibia is the most valid criterion for separation of females of the two species, although this cannot be determined with any degree of certainty. Spilopsyllus inaequalis interrupta is herein elevated to full specific status (Spilopsyllus interruptus) (Amended Status). Table 1 provides a resource for the terminology of various lobes and processes of the telomeric appendages of males of the superfamily Pulicoidea. Host and distribution records available in the literature are summarized in Tables 2 and 3.
{"title":"Elevation of Spilopsyllus inaequalis interrupta (Jordan, 1925) (Insecta, Siphonaptera) to Full Specific Status Based on Morphology and Geographical Distribution","authors":"M. Hastriter","doi":"10.2992/007.088.0101","DOIUrl":"https://doi.org/10.2992/007.088.0101","url":null,"abstract":"ABSTRACT Spilopsyllus inaequalis inaequalis and Spilopsyllus inaequalis interrupta are common ectoparasites of species of Leporidae. Kohls (1940) suggested that there are intergrades of these subspecies in sympatric areas of southeastern Washington and Oregon, south central Idaho, and Utah. Kohl's conclusions were based on traditional morphological features of the “clasper” (basimere and telomere) and chaetotaxy of the outer surface of the hind tibia. These morphological features, and that of the aedeagus, have never been critically studied until now. The aedeagi of both taxa were examined and several consistent structures separate these closely allied species. The median dorsal lobe and apex of the sclerotized inner tube show little variation, although they are distinctly different among the sympatric populations and are consistent in peripheral populations. These characters are stable with little variation and their structure appears to be sufficiently different to potentially inhibit interbreeding that typically occurs where subspecies meet. These characters are valid distinguishing characters even when males of both species occur simultaneously on the same host. These newly reognized static characters of the aedeagus are illustrated. The lateral surface of the hind tibia is the most valid criterion for separation of females of the two species, although this cannot be determined with any degree of certainty. Spilopsyllus inaequalis interrupta is herein elevated to full specific status (Spilopsyllus interruptus) (Amended Status). Table 1 provides a resource for the terminology of various lobes and processes of the telomeric appendages of males of the superfamily Pulicoidea. Host and distribution records available in the literature are summarized in Tables 2 and 3.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"64 1","pages":"1 - 12"},"PeriodicalIF":1.1,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73615800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT The individual bones of the adult cranium of the gray short-tailed opossum, Monodelphis domestica (Wagner, 1842) are described and illustrated in multiple views based on CT scans. The author previously reported on the outer bony surfaces of the skull of Monodelphis Burnett, 1830, and the current contribution is a companion piece, paying particular attention to the inner bony surfaces (within the endocranium and nasal cavity) and the facets between individual cranial elements, including the ethmo- and frontoturbinals. Comments are provided on the internal nasal floor skeleton, which in M. domestica includes a fused conglomerate formed by the medial palatine processes of the premaxillae, the vomer, the ethmoid, the presphenoid, and the orbitosphenoids. This conglomerate includes horizontal shelves just dorsal to the hard palate, and occurs widely in marsupials but is currently unknown in monotremes and placentals.
{"title":"CT Study of the Cranial Osteology of the Gray Short-Tailed Opossum Monodelphis domestica (Wagner, 1842) (Marsupialia, Didelphidae) and Comments on the Internal Nasal Skeleton Floor","authors":"J. Wible","doi":"10.2992/007.087.0401","DOIUrl":"https://doi.org/10.2992/007.087.0401","url":null,"abstract":"ABSTRACT The individual bones of the adult cranium of the gray short-tailed opossum, Monodelphis domestica (Wagner, 1842) are described and illustrated in multiple views based on CT scans. The author previously reported on the outer bony surfaces of the skull of Monodelphis Burnett, 1830, and the current contribution is a companion piece, paying particular attention to the inner bony surfaces (within the endocranium and nasal cavity) and the facets between individual cranial elements, including the ethmo- and frontoturbinals. Comments are provided on the internal nasal floor skeleton, which in M. domestica includes a fused conglomerate formed by the medial palatine processes of the premaxillae, the vomer, the ethmoid, the presphenoid, and the orbitosphenoids. This conglomerate includes horizontal shelves just dorsal to the hard palate, and occurs widely in marsupials but is currently unknown in monotremes and placentals.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"43 1","pages":"249 - 289"},"PeriodicalIF":1.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87784708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT New specimens of Late Jurassic and Early Cretaceous decapods from Argentina document new species and new occurrences. Pehuenchia Rusconi, 1948, originally placed within Palinura and subsequently placed within Callianassidae or Mecochiridae, is herein referred to Mecochiridae. The type species, Pehuenchia tellecheai Rusconi, 1948, is herein illustrated photographically for the first time. A second species of Pehuenchia is herein referred to a new genus, resulting in Zapalianassa, new genus, and Zapalianassa magna (Rusconi, 1948), new combination, and additional specimens of the species are illustrated. A new species of the mecochirid genus Huhatanka, Huhatanka australis, in southern Argentina extends the geographic range from the Western Interior Seaway and the geologic range from the late Early Cretaceous to the early Early Cretaceous. A species of Huhatanka described from Iran is herein moved to Meyeria, resulting in Meyeria iranica (Yazdi et al., 2010), new combination. Additional specimens of Protaxius paucisaetosus Andrada et al., 2022, extend the range of the species southward. Late Jurassic and Early Cretaceous decapod occurrences in Argentina are currently known from Glypheidea, Astacidea, and Axiidea.
阿根廷晚侏罗世和早白垩世十足类新标本记录了新种和新地型。Pehuenchia Rusconi, 1948，最初被归入Palinura，后来被归入Callianassidae或Mecochiridae，在这里被称为Mecochiridae。模式种，Pehuenchia tellecheai Rusconi, 1948，在此首次摄影说明。此处将Pehuenchia的第二个种称为新属，从而产生Zapalianassa，新属和Zapalianassa magna (Rusconi, 1948)，新组合，并说明了该物种的其他标本。阿根廷南部胡哈坦卡(Huhatanka australis)一新种，其地理范围从早白垩世晚期延伸至早白垩世早期，地理范围从西部内陆海道延伸至早白垩世早期。在此将一种来自伊朗的胡哈坦卡转移到梅耶里亚，形成梅耶里亚伊朗(Yazdi et al.， 2010)，新的组合。更多的paucisaetosus Andrada等人的标本，2022，将该物种的范围向南扩展。阿根廷晚侏罗世和早白垩世的十足类动物目前已知为Glypheidea, Astacidea和Axiidea。
{"title":"Revision of Decapoda (Glypheidea, Axiidea) from the Upper Jurassic-Lower Cretaceous of Argentina","authors":"C. Schweitzer, R. Feldmann, S. Casadío","doi":"10.2992/007.087.0402","DOIUrl":"https://doi.org/10.2992/007.087.0402","url":null,"abstract":"ABSTRACT New specimens of Late Jurassic and Early Cretaceous decapods from Argentina document new species and new occurrences. Pehuenchia Rusconi, 1948, originally placed within Palinura and subsequently placed within Callianassidae or Mecochiridae, is herein referred to Mecochiridae. The type species, Pehuenchia tellecheai Rusconi, 1948, is herein illustrated photographically for the first time. A second species of Pehuenchia is herein referred to a new genus, resulting in Zapalianassa, new genus, and Zapalianassa magna (Rusconi, 1948), new combination, and additional specimens of the species are illustrated. A new species of the mecochirid genus Huhatanka, Huhatanka australis, in southern Argentina extends the geographic range from the Western Interior Seaway and the geologic range from the late Early Cretaceous to the early Early Cretaceous. A species of Huhatanka described from Iran is herein moved to Meyeria, resulting in Meyeria iranica (Yazdi et al., 2010), new combination. Additional specimens of Protaxius paucisaetosus Andrada et al., 2022, extend the range of the species southward. Late Jurassic and Early Cretaceous decapod occurrences in Argentina are currently known from Glypheidea, Astacidea, and Axiidea.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"25 1","pages":"291 - 307"},"PeriodicalIF":1.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82183579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT Previously unreported material of leptictids (Mammalia: Leptictida) is described from three latest Eocene localities in Montana: Pipestone Springs (Ch3), McCarty's Mountain (Ch2), and Diamond O Ranch (Du–Ch1). Additional and more complete specimens of Leptictis acutidens (Douglass, 1901) from its type locality are also described. The first specimens of Leptictis intermedius (Douglass, 1905) outside of the type locality of McCarty's Mountain are described from the Diamond O Ranch fauna. Although previously suggested as a synonym of Leptictis montanus (Douglas, 1905), L. intermedius is recognized as a distinct species based on its smaller size, cranial features (narrower zygomatic arch, single squamosal sinus canal, large suprameatal foramen), and dental features (paraconule transversely elongated and more lingual than metaconule on P5–M3; and metacone moderately to well developed on M3). Leptictis thomsoni (Matthew, 1903) is referred to a new genus, Stenoleptictis based on previously undescribed lower dentitions and crania from both Pipestone Springs (type locality) and McCarty's Mountain. The most diagnostic characters of Stenolepticis thomsoni (Matthew, 1903), new combination, are the lingually narrower upper cheek teeth with reduced anterior cingula and the presence of more lateral, lyrate parasagittal crests on the cranium, features unreported in any other leptictids.
摘要:本文描述了蒙大拿州始新世晚期的三个地点:Pipestone Springs (Ch3)、McCarty's Mountain (Ch2)和Diamond O Ranch (Du-Ch1)的Leptictida(哺乳类:Leptictida)，此前未见报道。还描述了来自其类型地区的其他和更完整的急性Leptictis (Douglass, 1901)标本。在麦卡蒂山类型地区之外的第一批中间瘦虫(Douglass, 1905)标本是在Diamond O Ranch动物群中发现的。虽然以前被认为是montanus的同义词(Douglas, 1905)，但基于其较小的尺寸，颅骨特征(较窄的颧弓，单一的鳞状窦管，较大的表上孔)和牙齿特征(P5-M3上的旁小孔横向延长，比后小孔更舌状)，中间L.被认为是一个独特的物种;M3上发育中等至良好的元丙酮)。thomsoni Leptictis (Matthew, 1903)是一个新属，基于先前未描述的来自pipes stone Springs(类型地点)和McCarty's Mountain的下齿和头盖骨。thomsoni窄缩症(Matthew, 1903)最具诊断特征的新组合是舌上颊齿变窄，前扣带减少，头盖骨上有更多外侧、舌状副矢状嵴，这些特征在任何其他窄缩症中都没有报道过。
{"title":"New Material of Leptictids (Mammalia: Leptictida) from the Late Eocene (Duchesnean–Chadronian) of Southwestern Montana","authors":"W. Korth","doi":"10.2992/007.087.0403","DOIUrl":"https://doi.org/10.2992/007.087.0403","url":null,"abstract":"ABSTRACT Previously unreported material of leptictids (Mammalia: Leptictida) is described from three latest Eocene localities in Montana: Pipestone Springs (Ch3), McCarty's Mountain (Ch2), and Diamond O Ranch (Du–Ch1). Additional and more complete specimens of Leptictis acutidens (Douglass, 1901) from its type locality are also described. The first specimens of Leptictis intermedius (Douglass, 1905) outside of the type locality of McCarty's Mountain are described from the Diamond O Ranch fauna. Although previously suggested as a synonym of Leptictis montanus (Douglas, 1905), L. intermedius is recognized as a distinct species based on its smaller size, cranial features (narrower zygomatic arch, single squamosal sinus canal, large suprameatal foramen), and dental features (paraconule transversely elongated and more lingual than metaconule on P5–M3; and metacone moderately to well developed on M3). Leptictis thomsoni (Matthew, 1903) is referred to a new genus, Stenoleptictis based on previously undescribed lower dentitions and crania from both Pipestone Springs (type locality) and McCarty's Mountain. The most diagnostic characters of Stenolepticis thomsoni (Matthew, 1903), new combination, are the lingually narrower upper cheek teeth with reduced anterior cingula and the presence of more lateral, lyrate parasagittal crests on the cranium, features unreported in any other leptictids.","PeriodicalId":50771,"journal":{"name":"Annals of Carnegie Museum","volume":"15 1","pages":"309 - 326"},"PeriodicalIF":1.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84597972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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