This paper describes resting traces of horseshoe crabs Arborichnus repetitus Romano et Meléndez, 1985 from marine deposits of the Dyakove Group (Viséan–Bashkirian) and the Bashkirian coal-bearing rocks of the Mandrykyne and Mospyne formations in the Donets Basin, eastern Ukraine. The presence of Arborichnus repetitus indicates the widespread distribution of horseshoe crabs in the coastal paleobiocenoses of the Dyakove Paleobasin, located in the central part of the Donets Basin. The horseshoe crab resting traces Arborichnus repetitus from the Bashkirian strata of the Donets Basin are typical of deltaic and prodeltaic rocks, usually represented by sandstones and siltstones. Horseshoe crabs are the most likely trace-makers of Arborichnus Romano et Meléndez, 1985, but some other arthropods, e.g., aglaspidids, could also have produce these trace fossils. The discovery of the presumably horseshoe crab thoracetron on the same sandstone bedding plane as the traces Arborichnus indirectly confirms that xiphosurans were the trace-makers of these ichnofossils.
本文描述了乌克兰东部顿涅茨盆地Dyakove群海相沉积(vis - baskirian)和Mandrykyne组和Mospyne组baskirian含煤岩中马蹄蟹Arborichnus repetitus Romano et melsamudez, 1985的安息痕迹。Arborichnus repetitus的存在表明马蹄蟹在位于顿涅茨盆地中部的Dyakove古盆地海岸古生物世中分布广泛。顿涅茨盆地巴什基里亚地层中的马蹄蟹安息迹是典型的三角洲和前三角洲岩石，通常以砂岩和粉砂岩为代表。马蹄蟹最有可能是Arborichnus Romano et melsamudez(1985)的痕迹制造者，但其他一些节肢动物，如草纲动物，也可能产生这些痕迹化石。在同一砂岩层理平面上发现了推测为马蹄蟹的胸腹蟹，间接证实了剑龙是这些鱼化石的痕迹制造者。
{"title":"Horseshoe crab trace fossils Arborichnus Romano et Meléndez, 1985 from the Bashkirian (Carboniferous) of the Donets Basin, Ukraine","authors":"Vitaly Dernov","doi":"10.37520/fi.2023.002","DOIUrl":"https://doi.org/10.37520/fi.2023.002","url":null,"abstract":"This paper describes resting traces of horseshoe crabs Arborichnus repetitus Romano et Meléndez, 1985 from marine deposits of the Dyakove Group (Viséan–Bashkirian) and the Bashkirian coal-bearing rocks of the Mandrykyne and Mospyne formations in the Donets Basin, eastern Ukraine. The presence of Arborichnus repetitus indicates the widespread distribution of horseshoe crabs in the coastal paleobiocenoses of the Dyakove Paleobasin, located in the central part of the Donets Basin. The horseshoe crab resting traces Arborichnus repetitus from the Bashkirian strata of the Donets Basin are typical of deltaic and prodeltaic rocks, usually represented by sandstones and siltstones. Horseshoe crabs are the most likely trace-makers of Arborichnus Romano et Meléndez, 1985, but some other arthropods, e.g., aglaspidids, could also have produce these trace fossils. The discovery of the presumably horseshoe crab thoracetron on the same sandstone bedding plane as the traces Arborichnus indirectly confirms that xiphosurans were the trace-makers of these ichnofossils.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135505311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Martin Pickford, Dominique Gommery, Thomas Ingicco
Fossil monkeys are rare in the British palaeontological record, a few specimens having been reported from the Pleistocene, and a single specimen from the Red Crag, possibly of Late Miocene or Pliocene age. An undescribed monkey tooth from the Red Crag at Waldringfield collected circa 1908 that has remained unidentified in the collections of the Sedgwick Museum, Cambridge, is described herein. The fossil was associated with dental remains of a suid, a tapir and a deer which, taken as an assemblage, are best correlated to the Early Pliocene, being similar to specimens from Perrier, France. Because of the high latitudinal position of Waldringfield (52°N) and indications for a tropical to sub-tropical palaeoenvironment during the Late Miocene – Early Pliocene, the monkey tooth from there is of great interest.
{"title":"Macaque molar from the Red Crag Formation, Waldringfield, England","authors":"Martin Pickford, Dominique Gommery, Thomas Ingicco","doi":"10.37520/fi.2023.003","DOIUrl":"https://doi.org/10.37520/fi.2023.003","url":null,"abstract":"Fossil monkeys are rare in the British palaeontological record, a few specimens having been reported from the Pleistocene, and a single specimen from the Red Crag, possibly of Late Miocene or Pliocene age. An undescribed monkey tooth from the Red Crag at Waldringfield collected circa 1908 that has remained unidentified in the collections of the Sedgwick Museum, Cambridge, is described herein. The fossil was associated with dental remains of a suid, a tapir and a deer which, taken as an assemblage, are best correlated to the Early Pliocene, being similar to specimens from Perrier, France. Because of the high latitudinal position of Waldringfield (52°N) and indications for a tropical to sub-tropical palaeoenvironment during the Late Miocene – Early Pliocene, the monkey tooth from there is of great interest.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135505587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present contribution describes a new rich ammonite material from the Aptian-type area, Vaucluse, France, made accessible by the expansion of the wine cellar of Domaine de Château-Blanc at Roussillon, located at ca. 8 km northwest of Apt. This temporary outcrop exposed a few meters of sandstones and sandy, glauconitic marls, characterising the fifth unit of the Aptian-type series. The ammonite specimens are preserved as crushed, internal moulds with phosphatised shells, and are assigned to the Acanthohoplitidae Egoianiceras angulatum, Egoianiceras lautum, ?Egoianiceras exiquecostatum, and Acanthohoplites sp., together with poorly-preserved Parahoplitidae (Parahoplites sp.). This assemblage is coeval to the Fallot black shale episodes occurring in the nearby Vocontian Basin, and correlates to the uppermost Epicheloniceras martini Zone of Dutour (2005), or the lower Colombiceras tobleri Zone of Dauphin (2002), an age which challenges the younger ammonite-age calibration previously established for the fifth unit.
{"title":"Upper Aptian ammonites from Roussillon, southern France","authors":"Camille Frau","doi":"10.37520/fi.2023.005","DOIUrl":"https://doi.org/10.37520/fi.2023.005","url":null,"abstract":"The present contribution describes a new rich ammonite material from the Aptian-type area, Vaucluse, France, made accessible by the expansion of the wine cellar of Domaine de Château-Blanc at Roussillon, located at ca. 8 km northwest of Apt. This temporary outcrop exposed a few meters of sandstones and sandy, glauconitic marls, characterising the fifth unit of the Aptian-type series. The ammonite specimens are preserved as crushed, internal moulds with phosphatised shells, and are assigned to the Acanthohoplitidae Egoianiceras angulatum, Egoianiceras lautum, ?Egoianiceras exiquecostatum, and Acanthohoplites sp., together with poorly-preserved Parahoplitidae (Parahoplites sp.). This assemblage is coeval to the Fallot black shale episodes occurring in the nearby Vocontian Basin, and correlates to the uppermost Epicheloniceras martini Zone of Dutour (2005), or the lower Colombiceras tobleri Zone of Dauphin (2002), an age which challenges the younger ammonite-age calibration previously established for the fifth unit.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135506065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Bromacker locality in Thuringia, Germany is world famous for its exceptionally well-preserved early Permian tetrapod footprints. In this paper, we provide the first detailed description of the Bromacker specimen with diadectomorph footprints that was donated to the National Museum Prague in 1916. The specimen shows more than 80 footprints of six trackways and several incomplete step cycles of different morphological qualities assigned to the ichnotaxon Ichniotherium sphaerodactylum. Apart from its paleoichnological value, the slab is of historic interest as it fits into a long period of about five decades (1908 to 1954) from which there is almost no information on fossil discoveries at the locality.
{"title":"Early Permian diadectomorph tetrapod footprints from the Bromacker locality (Thuringia, Germany) in the National Museum Prague","authors":"Gabriela Calábková, Boris Ekrt, Sebastian Voigt","doi":"10.37520/fi.2023.001","DOIUrl":"https://doi.org/10.37520/fi.2023.001","url":null,"abstract":"The Bromacker locality in Thuringia, Germany is world famous for its exceptionally well-preserved early Permian tetrapod footprints. In this paper, we provide the first detailed description of the Bromacker specimen with diadectomorph footprints that was donated to the National Museum Prague in 1916. The specimen shows more than 80 footprints of six trackways and several incomplete step cycles of different morphological qualities assigned to the ichnotaxon Ichniotherium sphaerodactylum. Apart from its paleoichnological value, the slab is of historic interest as it fits into a long period of about five decades (1908 to 1954) from which there is almost no information on fossil discoveries at the locality.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135506057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MacKenzie A. Smith, Dale E. Greenwalt, Steven R. Manchester
Lacustrine shales of the Kishenehn Formation of northwestern Montana provide an important window to the local mid-Eocene (Lutetian) ecosystem including evidence from insects, molluscs, vertebrates and plants. However, little has been published on the macrofossils flora, which includes abundant compressed fruits and seeds as well as foliage. Here we provide a preliminary survey, with particular attention to reproductive remains from the Middle Fork Region. Identified families include Equisetaceae, Cupressaceae, Pinaceae, Betulaceae, Brassicaceae, Cercidiphyllaceae, Eucommiaceae, Juglandaceae, Oleaceae, Platanaceae, Rutaceae, Salicaceae, Sapindaceae, Simaroubaceae and Ulmaceae. With at least 107 entities, this is among the most diverse lacustrine megafossil floras in North America. This flora shares elements with the early to mid-Eocene Green River Parachute Creek Member flora of Colorado and Utah, the Thunder Mountain flora of Idaho and the Okanogan Highland floras of British Columbia and Republic, Washington, as well as some with the late Eocene Ruby flora of Montana. We estimate the mean annual temperature to have been between 8.91 and 12.10 °C and mean annual precipitation to have been between 945 and 1,204 mm using the Bioclimatic Analysis/Mutual Climate Range Technique. This summary of floral elements complements the faunal record of the Kishenehn Formation and fills a gap in prior knowledge of the paleofloristic distributions.
{"title":"Diverse fruits and seeds of the mid-Eocene Kishenehn Formation, northwestern Montana, USA, and their implications for biogeography","authors":"MacKenzie A. Smith, Dale E. Greenwalt, Steven R. Manchester","doi":"10.37520/fi.2023.004","DOIUrl":"https://doi.org/10.37520/fi.2023.004","url":null,"abstract":"Lacustrine shales of the Kishenehn Formation of northwestern Montana provide an important window to the local mid-Eocene (Lutetian) ecosystem including evidence from insects, molluscs, vertebrates and plants. However, little has been published on the macrofossils flora, which includes abundant compressed fruits and seeds as well as foliage. Here we provide a preliminary survey, with particular attention to reproductive remains from the Middle Fork Region. Identified families include Equisetaceae, Cupressaceae, Pinaceae, Betulaceae, Brassicaceae, Cercidiphyllaceae, Eucommiaceae, Juglandaceae, Oleaceae, Platanaceae, Rutaceae, Salicaceae, Sapindaceae, Simaroubaceae and Ulmaceae. With at least 107 entities, this is among the most diverse lacustrine megafossil floras in North America. This flora shares elements with the early to mid-Eocene Green River Parachute Creek Member flora of Colorado and Utah, the Thunder Mountain flora of Idaho and the Okanogan Highland floras of British Columbia and Republic, Washington, as well as some with the late Eocene Ruby flora of Montana. We estimate the mean annual temperature to have been between 8.91 and 12.10 °C and mean annual precipitation to have been between 945 and 1,204 mm using the Bioclimatic Analysis/Mutual Climate Range Technique. This summary of floral elements complements the faunal record of the Kishenehn Formation and fills a gap in prior knowledge of the paleofloristic distributions.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135506059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Martinetto, A. Bertini, Dimitra V. Mantzouka, M. Natalicchio, Gabriele Niccolini, J. Kovar-Eder
The first results of a multidisciplinary study on the Messinian evaporitic interval of the Govone section (northwestern Italy), subdivided into several sedimentary cycles, are reported here. Primary sulphate evaporites and intercalated shaly deposits, which formed during the Messinian Salinity Crisis, contain well-preserved and taxonomically determinable terrestrial plant remains. Palynomorphs are present continuously all along the analysed succession and among them, pollen is especially abundant and diverse. Additionally, a few fragments of silicified wood (which are rare in the studied area) occurred in layers rich in phytodebris, but their analysis showed poor preservation of anatomy. Carpological remains are not abundant and are strongly altered by diagenesis. Compressed conifer shoots and angiosperm leaves are well-preserved in several layers, one of which yielded a particularly diverse assemblage. The various plant records have been integrated to obtain an initial general idea on the floristic composition of the assemblages and the palaeoenvironment. We hypothesize that a subtropical humid forest may have surrounded the basin, not only during the deposition of shale deposits, but also during the formation of gypsum, generally considered a product of arid climate. Despite the low-resolution sampling strategy for macrofossils, the identification of several relevant plant taxa (Engelhardia orsbergensis, Eurya stigmosa, Symplocos casparyi, Taiwania sp.), seems to indicate that the Govone section could provide an interesting glimpse into the composition of the palaeoflora of northern Italy during the deposition of the Messinian evaporites.
{"title":"Remains of a subtropical humid forest in a Messinian evaporite-bearing succession at Govone, northwestern Italy – Preliminary results","authors":"E. Martinetto, A. Bertini, Dimitra V. Mantzouka, M. Natalicchio, Gabriele Niccolini, J. Kovar-Eder","doi":"10.37520/fi.2022.007","DOIUrl":"https://doi.org/10.37520/fi.2022.007","url":null,"abstract":"The first results of a multidisciplinary study on the Messinian evaporitic interval of the Govone section (northwestern Italy), subdivided into several sedimentary cycles, are reported here. Primary sulphate evaporites and intercalated shaly deposits, which formed during the Messinian Salinity Crisis, contain well-preserved and taxonomically determinable terrestrial plant remains. Palynomorphs are present continuously all along the analysed succession and among them, pollen is especially abundant and diverse. Additionally, a few fragments of silicified wood (which are rare in the studied area) occurred in layers rich in phytodebris, but their analysis showed poor preservation of anatomy. Carpological remains are not abundant and are strongly altered by diagenesis. Compressed conifer shoots and angiosperm leaves are well-preserved in several layers, one of which yielded a particularly diverse assemblage. The various plant records have been integrated to obtain an initial general idea on the floristic composition of the assemblages and the palaeoenvironment. We hypothesize that a subtropical humid forest may have surrounded the basin, not only during the deposition of shale deposits, but also during the formation of gypsum, generally considered a product of arid climate. Despite the low-resolution sampling strategy for macrofossils, the identification of several relevant plant taxa (Engelhardia orsbergensis, Eurya stigmosa, Symplocos casparyi, Taiwania sp.), seems to indicate that the Govone section could provide an interesting glimpse into the composition of the palaeoflora of northern Italy during the deposition of the Messinian evaporites.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Uncalcified macroalgae are generally rare as fossils, and hence their past diversity and evolutionary history remain poorly resolved. The Bolca area in northern Italy has yielded abundant adpression fossils of Eocene macroalgae. However, the vast majority of specimens are detached blades and blade portions. Here, we present an almost complete thallus of the macroalga Pterigophycos from Bolca that consists of a squat holdfast from which leaf-like blades up to 30 cm long extend. Each blade has a midrib extending over its entire length. Proximally the lamina forms a narrow rim on each side of the midrib, but becomes wider and lobed in the lower mid-portion. In the upper three quarters of the blade the lamina consists of spathulate or wedge-shaped segments. Pterigophycos blades have certain features in common with the present-day Phycodrys rubens, Delesseria sanguinea (both Ceramiales, Rhodophyta), Undaria pinnatifida, and Egregia menziesii (both Laminariales, Phaeophyceae); however, the systematic affinity of the fossil remains unresolved. The fossil is suggestive of intraspecific variability in blade morphology, and thus contests the historic view that there are several different species of Pterigophycos in the Bolca flora.
{"title":"A whole-plant specimen of the marine macroalga Pterigophycos from the Eocene of Bolca (Veneto, N-Italy)","authors":"E. Kustatscher, H. Martin, G. Roghi, M. Krings","doi":"10.37520/fi.2022.006","DOIUrl":"https://doi.org/10.37520/fi.2022.006","url":null,"abstract":"Uncalcified macroalgae are generally rare as fossils, and hence their past diversity and evolutionary history remain poorly resolved. The Bolca area in northern Italy has yielded abundant adpression fossils of Eocene macroalgae. However, the vast majority of specimens are detached blades and blade portions. Here, we present an almost complete thallus of the macroalga Pterigophycos from Bolca that consists of a squat holdfast from which leaf-like blades up to 30 cm long extend. Each blade has a midrib extending over its entire length. Proximally the lamina forms a narrow rim on each side of the midrib, but becomes wider and lobed in the lower mid-portion. In the upper three quarters of the blade the lamina consists of spathulate or wedge-shaped segments. Pterigophycos blades have certain features in common with the present-day Phycodrys rubens, Delesseria sanguinea (both Ceramiales, Rhodophyta), Undaria pinnatifida, and Egregia menziesii (both Laminariales, Phaeophyceae); however, the systematic affinity of the fossil remains unresolved. The fossil is suggestive of intraspecific variability in blade morphology, and thus contests the historic view that there are several different species of Pterigophycos in the Bolca flora.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69922350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fossil plants were discovered by geologists in the dolomite quarry on Strázsa Hill, west of Zsámbék, central Hungary, during December, 2020. The analysis of the plant remains and subsequent field studies suggest that the fossil plants are preserved in sediments of the Mány Member of the Törökbálint Formation and the sandy-clayey layers overlying Mesozoic dolomites were formed during the Oligocene. The fossil plant assemblage includes a small number of taxa with a relatively high frequency of gymnosperms. Among the gymnosperms taxodiaceous twigs, assigned to ?Taxodium, are dominant. Angiosperms are represented by the family Lauraceae (Daphnogene and Laurophyllum), Betulaceae (cf. Alnus), Ulmaceae (cf. Ulmaceae gen. et sp.), and “Rhamnus” warthae, a taxon with unknown systematic relations and a putative endemic element of the Intra-Carpathian area of the Central Paratethyan region. The flora is dominated by gymnosperms and “Rhamnus” warthae, other taxa are present but at lower frequency. Although the plant fossils of Zsámbék represent wetland vegetation types, less suitable for climate reconstruction, the relatively high ratio of lauraceous elements suggests a frostfree, warm climate. The floristic composition of the Zsámbék flora is clearly comparable to other late Oligocene floras of Hungary, therefore earlier climate estimates based on other similar-aged floras may also be considered for Zsámbék.
{"title":"The late Oligocene macroflora of Zsámbék, central Hungary","authors":"Bolgárka Erdei, L. Hably, G. Héja, L. Fodor","doi":"10.37520/fi.2022.012","DOIUrl":"https://doi.org/10.37520/fi.2022.012","url":null,"abstract":"Fossil plants were discovered by geologists in the dolomite quarry on Strázsa Hill, west of Zsámbék, central Hungary, during December, 2020. The analysis of the plant remains and subsequent field studies suggest that the fossil plants are preserved in sediments of the Mány Member of the Törökbálint Formation and the sandy-clayey layers overlying Mesozoic dolomites were formed during the Oligocene. The fossil plant assemblage includes a small number of taxa with a relatively high frequency of gymnosperms. Among the gymnosperms taxodiaceous twigs, assigned to ?Taxodium, are dominant. Angiosperms are represented by the family Lauraceae (Daphnogene and Laurophyllum), Betulaceae (cf. Alnus), Ulmaceae (cf. Ulmaceae gen. et sp.), and “Rhamnus” warthae, a taxon with unknown systematic relations and a putative endemic element of the Intra-Carpathian area of the Central Paratethyan region. The flora is dominated by gymnosperms and “Rhamnus” warthae, other taxa are present but at lower frequency. Although the plant fossils of Zsámbék represent wetland vegetation types, less suitable for climate reconstruction, the relatively high ratio of lauraceous elements suggests a frostfree, warm climate. The floristic composition of the Zsámbék flora is clearly comparable to other late Oligocene floras of Hungary, therefore earlier climate estimates based on other similar-aged floras may also be considered for Zsámbék.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69922593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Přikryl, O. Kovalchuk, G. Carnevale, Z. Barkaszi
A new specimen of the fossil puffer fish Archaeotetraodon winterbottomi (Tetraodontidae) is described from the lower Oligocene deposits of the Sheshory locality, Ukraine. The specimen reveals a number of characters, some of which are diagnostic and others which were recognized herein for first time, such as the possession of a relatively narrow neurocranium in the supraorbital region, smooth frontals, eight abdominal and nine caudal vertebrae, and long and slender postcleithrum.
{"title":"New material of the puffer fish Archaeotetraodon winterbottomi Tyler et Bannikov, 1994 (Tetraodontidae) from the Oligocene of the Eastern Paratethys","authors":"T. Přikryl, O. Kovalchuk, G. Carnevale, Z. Barkaszi","doi":"10.37520/fi.2022.022","DOIUrl":"https://doi.org/10.37520/fi.2022.022","url":null,"abstract":"A new specimen of the fossil puffer fish Archaeotetraodon winterbottomi (Tetraodontidae) is described from the lower Oligocene deposits of the Sheshory locality, Ukraine. The specimen reveals a number of characters, some of which are diagnostic and others which were recognized herein for first time, such as the possession of a relatively narrow neurocranium in the supraorbital region, smooth frontals, eight abdominal and nine caudal vertebrae, and long and slender postcleithrum.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69922622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The early middle Eocene Wagon Bed fruit and seed flora of central Wyoming encompasses nine morphotypes that are assignable to extant genera (Alangium, Aphanathe, Canarium, Carya, Celtis, Iodes, Mastixia, Nyssa, Pleiogynium), four that are assignable to extinct genera in extant families (Chandlera, Menispermaceae; Coryloides, Betulaceae; Pentoperculum, Anacardiaceae; Saxifragispermum, Salicaceae) and one morphotype potentially assignable to an extant family (Pandanaceae). At least 11 morphotypes remain unidentified due to incomplete characters, although some exhibit features suggestive, but not definitive, of extant families (e.g., Euphorbiaceae, Lauraceae, Nymphaeaceae, Rosaceae). Individual taxa exhibit paleobiogeographic links with the Eocene floras of the west coast of North America, as well as with those of the Eocene of Europe. Together with previously described pollen and woods, these fruits and seeds indicate a mixed evergreen and deciduous forest, existing under moist circumstances, possessing primary taxonomic affinities with extant paratropical taxa of the Old World.
{"title":"The early middle Eocene Wagon Bed carpoflora of central Wyoming, U.S.A.","authors":"B. Tiffney, S. Manchester","doi":"10.37520/fi.2022.004","DOIUrl":"https://doi.org/10.37520/fi.2022.004","url":null,"abstract":"The early middle Eocene Wagon Bed fruit and seed flora of central Wyoming encompasses nine morphotypes that are assignable to extant genera (Alangium, Aphanathe, Canarium, Carya, Celtis, Iodes, Mastixia, Nyssa, Pleiogynium), four that are assignable to extinct genera in extant families (Chandlera, Menispermaceae; Coryloides, Betulaceae; Pentoperculum, Anacardiaceae; Saxifragispermum, Salicaceae) and one morphotype potentially assignable to an extant family (Pandanaceae). At least 11 morphotypes remain unidentified due to incomplete characters, although some exhibit features suggestive, but not definitive, of extant families (e.g., Euphorbiaceae, Lauraceae, Nymphaeaceae, Rosaceae). Individual taxa exhibit paleobiogeographic links with the Eocene floras of the west coast of North America, as well as with those of the Eocene of Europe. Together with previously described pollen and woods, these fruits and seeds indicate a mixed evergreen and deciduous forest, existing under moist circumstances, possessing primary taxonomic affinities with extant paratropical taxa of the Old World.","PeriodicalId":12431,"journal":{"name":"Fossil Imprint","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69921653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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