Pub Date : 1996-01-01DOI: 10.1080/03115519608619219
I. Nikitin, L. Popov
Ten species of strophomenid and triplesiid brachiopods are described from the Late Ordovician (late Caradoc to early Ashgill) Dulankara Regional Stage of Central Kazakhstan. They represent part of a diverse brachiopod assemblage, which was discovered in the top of a carbonate mound in the northern Betpak-Dala Desert. This brachiopod assemblage includes mostly genera not recorded previously from contemporaneous deposits in Kazakhstan, although they may be related to the long-lived lineages which appeared in the area during Llanvirn or Llandeilo. New taxa are: the plectambonitoids Bandaleta plana gen. et sp. nov., Shlyginia perplexa sp. nov., Sortanella quinquecostata gen. et sp. nov., Anoptambonites subcarinatus sp. nov., Anisopleurella ampla sp. nov., Craspedelia roomusoksi sp. nov., and triplesioid Triplesia sortanensis sp. nov.
报道了哈萨克斯坦中部晚奥陶世(卡拉多克晚期至阿什吉尔早期)杜拉卡拉地区阶段的10种双翅目和三翅目腕足类动物。它们代表了一种多样的腕足动物组合的一部分，这些组合是在北巴达拉沙漠的一个碳酸盐丘的顶部发现的。这一腕足类组合包括了哈萨克斯坦同时期沉积物中未记录的大部分属，尽管它们可能与Llanvirn或Llandeilo期间出现在该地区的长寿谱系有关。新分类群为:plectambonitae Bandaleta plana gen. et sp. nov、Shlyginia perplexa sp. nov、sortanstata gen. et sp. nov、Anoptambonites subcarinatus sp. nov、Anisopleurella ampla sp. nov、asperpedelia roomusoksi sp. nov、Triplesia sortanensis sp. nov。
{"title":"Strophomenid and triplesiid brachiopods from an Upper Ordovician carbonate mound in central Kazakhstan","authors":"I. Nikitin, L. Popov","doi":"10.1080/03115519608619219","DOIUrl":"https://doi.org/10.1080/03115519608619219","url":null,"abstract":"Ten species of strophomenid and triplesiid brachiopods are described from the Late Ordovician (late Caradoc to early Ashgill) Dulankara Regional Stage of Central Kazakhstan. They represent part of a diverse brachiopod assemblage, which was discovered in the top of a carbonate mound in the northern Betpak-Dala Desert. This brachiopod assemblage includes mostly genera not recorded previously from contemporaneous deposits in Kazakhstan, although they may be related to the long-lived lineages which appeared in the area during Llanvirn or Llandeilo. New taxa are: the plectambonitoids Bandaleta plana gen. et sp. nov., Shlyginia perplexa sp. nov., Sortanella quinquecostata gen. et sp. nov., Anoptambonites subcarinatus sp. nov., Anisopleurella ampla sp. nov., Craspedelia roomusoksi sp. nov., and triplesioid Triplesia sortanensis sp. nov.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"1-20"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986217","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619474
P. Taylor
Two bryozoan species have been found in the Kahuitara Tuff (Piripauan-Haumurian Stages; equivalent to Campanian-Maastrichtian) of Pitt Island, in the Chatham Islands, about 900 km east of the South Island of New Zealand. Cretaceous bryozoans are rare in Australasia, and the two species in this paper are the first to be formally described from New Zealand. Both species have thick dendroid colonies but whereas Ceriocava maculata sp. nov. is an unequivocal cerioporine cyclostome, the other species — Chiplonkarina campbelli sp. nov. — is more problematical and is interpreted as an aberrant ‘malacostegan’ cheilostome. Like previously described species of Chiplonkarina, C. campbelli has interzooidal walls with a central crenulated layer, indicating the former presence of an intercalary cuticle of the type found in many cheilostomes but unknown in cyclostomes. The anomalous global biogeographical distribution of bryozoans during the Cretaceous is briefly discussed.
{"title":"Cretaceous bryozoans from the Chatham Islands, New Zealand","authors":"P. Taylor","doi":"10.1080/03115519608619474","DOIUrl":"https://doi.org/10.1080/03115519608619474","url":null,"abstract":"Two bryozoan species have been found in the Kahuitara Tuff (Piripauan-Haumurian Stages; equivalent to Campanian-Maastrichtian) of Pitt Island, in the Chatham Islands, about 900 km east of the South Island of New Zealand. Cretaceous bryozoans are rare in Australasia, and the two species in this paper are the first to be formally described from New Zealand. Both species have thick dendroid colonies but whereas Ceriocava maculata sp. nov. is an unequivocal cerioporine cyclostome, the other species — Chiplonkarina campbelli sp. nov. — is more problematical and is interpreted as an aberrant ‘malacostegan’ cheilostome. Like previously described species of Chiplonkarina, C. campbelli has interzooidal walls with a central crenulated layer, indicating the former presence of an intercalary cuticle of the type found in many cheilostomes but unknown in cyclostomes. The anomalous global biogeographical distribution of bryozoans during the Cretaceous is briefly discussed.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"315-327"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59987124","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619224
W. Holmes
An unusual plant fossil of unknown affinities is reported from the Late Carboniferous of New South Wales. Burdekinia multiseptata gen. et sp. nov. is known from a straplike organ, externally rather featureless, but characterised by a distinctive internal structure of regular transverse sphenopsid-like partitions which form rectangular sections. These sections are filled with a lattice-work of about six parallel rows of small chambers which resembles the internal structure formed by aerenchyma cells in the leaves of the extant marsh plants in the genus Typha.
据报道，新南威尔士州晚石炭纪发现了一种不寻常的植物化石，其亲缘关系不明。Burdekinia multiseptata gen. et sp. 11 .是一种带状器官，外部没有特征，但其内部结构独特，有规则的横向蝶体状隔墙，形成矩形截面。这些部分充满了大约六排平行的小室的格子结构，类似于现存的苔属沼泽植物叶片中的通气细胞形成的内部结构。
{"title":"A fossil plant organ with unusual internal structure from the Late Carboniferous of New South Wales","authors":"W. Holmes","doi":"10.1080/03115519608619224","DOIUrl":"https://doi.org/10.1080/03115519608619224","url":null,"abstract":"An unusual plant fossil of unknown affinities is reported from the Late Carboniferous of New South Wales. Burdekinia multiseptata gen. et sp. nov. is known from a straplike organ, externally rather featureless, but characterised by a distinctive internal structure of regular transverse sphenopsid-like partitions which form rectangular sections. These sections are filled with a lattice-work of about six parallel rows of small chambers which resembles the internal structure formed by aerenchyma cells in the leaves of the extant marsh plants in the genus Typha.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"69-72"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986012","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619220
P. Vickers-Rich, R. Molnar
Impressions of what appear to be pedal digits II and III of a bird have been found in the Eocene Redbank Plains Formation, Brisbane, Queensland. These represent some of the oldest Cainozoic avian fossils from Australia. The broad phalanges and the phalangeal proportions indicate that the Redbank Plains bird foot was from a ground dweller. Paired processes for the flexor tendons on the proximoventral margin of phalanx 1 digit III are absent. Relative proportions of the phalanges and number of phalanges in digits II and III are similar to those of dromornithids. These two characters shared with dromornithids suggest that the Redbank Plains bird may represent the oldest known member of that clade.
{"title":"The foot of a bird from the Eocene Redbank Plains Formation of Queensland, Australia","authors":"P. Vickers-Rich, R. Molnar","doi":"10.1080/03115519608619220","DOIUrl":"https://doi.org/10.1080/03115519608619220","url":null,"abstract":"Impressions of what appear to be pedal digits II and III of a bird have been found in the Eocene Redbank Plains Formation, Brisbane, Queensland. These represent some of the oldest Cainozoic avian fossils from Australia. The broad phalanges and the phalangeal proportions indicate that the Redbank Plains bird foot was from a ground dweller. Paired processes for the flexor tendons on the proximoventral margin of phalanx 1 digit III are absent. Relative proportions of the phalanges and number of phalanges in digits II and III are similar to those of dromornithids. These two characters shared with dromornithids suggest that the Redbank Plains bird may represent the oldest known member of that clade.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"21-29"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986279","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619188
P. Kruse
New material from the Ordian to early Templetonian (early Middle Cambrian) of the Georgina Basin and Daly Basin in northern Australia allows further observations on the anthaspidellid sponge Rankenella mors and the chambered heteractinide sponge Jawonya gurumal respectively. Explanate specimens of R. mors are found to bear closely spaced, rimmed oscules, and the known range of the species is extended from the Ranken Limestone near Soudan to include the Arthur Creek Formation near Ammaroo. Jawonya gurumal from the Tindall Limestone near Claravale is better preserved than type and topotype material, and demonstrates that the genus is two-walled, and not one-walled as originally described. Furthermore, exopore architecture is much more complex than previously envisaged. The co-occurring related genus Wagima is also considered to be two-walled. Rankenella in the Ranken Limestone flourished in a low-energy, shallow subtidal marine environment subject to episodic higher-energy events that generated ooid shoals ...
来自澳大利亚北部乔治纳盆地和Daly盆地的Ordian - early templeton(早中寒武世)的新材料，使我们可以对蚁蛛类海绵Rankenella mors和室状异光系海绵Jawonya gurumal分别进行进一步的观察。人们发现了可解释的R. mors标本具有紧密间隔的边缘鳞片，并且已知的物种范围从苏丹附近的Ranken石灰岩扩展到Ammaroo附近的Arthur Creek地层。来自Claravale附近Tindall石灰岩的Jawonya gurumal比类型和地形型材料保存得更好，并表明该属是两壁的，而不是最初描述的单壁。此外，exopore架构比以前设想的要复杂得多。共同发生的相关属Wagima也被认为是两壁的。兰肯石灰石中的兰肯菌在低能、浅水的潮下海洋环境中繁盛，受到偶发的高能事件的影响，产生了浅滩……
{"title":"Update on the northern Australian Cambrian sponges Rankenella, Jawonya and Wagima","authors":"P. Kruse","doi":"10.1080/03115519608619188","DOIUrl":"https://doi.org/10.1080/03115519608619188","url":null,"abstract":"New material from the Ordian to early Templetonian (early Middle Cambrian) of the Georgina Basin and Daly Basin in northern Australia allows further observations on the anthaspidellid sponge Rankenella mors and the chambered heteractinide sponge Jawonya gurumal respectively. Explanate specimens of R. mors are found to bear closely spaced, rimmed oscules, and the known range of the species is extended from the Ranken Limestone near Soudan to include the Arthur Creek Formation near Ammaroo. Jawonya gurumal from the Tindall Limestone near Claravale is better preserved than type and topotype material, and demonstrates that the genus is two-walled, and not one-walled as originally described. Furthermore, exopore architecture is much more complex than previously envisaged. The co-occurring related genus Wagima is also considered to be two-walled. Rankenella in the Ranken Limestone flourished in a low-energy, shallow subtidal marine environment subject to episodic higher-energy events that generated ooid shoals ...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"161-178"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59985870","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619192
G. Shi, Fang Zong-jie, N. Archbold
The present paper describes and illustrates an Early Permian brachiopod fauna collected from two localities from the upper part of the type Dingjiazhai Formation near Youwang, 30 km south of Baoshan in the Baoshan block, western Yunnan, China. The brachiopod fauna is dominated by Stenoscisma sp. and Elivina yunnanensis sp. nov. and exhibits strong generic and some specific links with faunas from the Bisnain assemblage of Timor and the Callytharra Formation of Western Australia and, to a lesser extent, faunas from the Jilong Formation of southern Tibet, the Tashkazyk Formation of southeastern Pamir, the lower Toinlungkongba Formation of northwestern Tibet, the upper Pondo Group of central Tibet, and the Jimba Jimba Calcarenite of the Carnarvon Basin, Western Australia. Based on these correlations, a Late Sakmarian (Sterlitamakian) age is preferred for the Dingjiazhai brachiopod fauna. Two new species are proposed: Globiella youwangensis sp. nov. and Elivina yunnanensis sp. nov.
{"title":"An Early Permian brachiopod fauna of Gondwanan affinity from the Baoshan block, western Yunnan, China","authors":"G. Shi, Fang Zong-jie, N. Archbold","doi":"10.1080/03115519608619192","DOIUrl":"https://doi.org/10.1080/03115519608619192","url":null,"abstract":"The present paper describes and illustrates an Early Permian brachiopod fauna collected from two localities from the upper part of the type Dingjiazhai Formation near Youwang, 30 km south of Baoshan in the Baoshan block, western Yunnan, China. The brachiopod fauna is dominated by Stenoscisma sp. and Elivina yunnanensis sp. nov. and exhibits strong generic and some specific links with faunas from the Bisnain assemblage of Timor and the Callytharra Formation of Western Australia and, to a lesser extent, faunas from the Jilong Formation of southern Tibet, the Tashkazyk Formation of southeastern Pamir, the lower Toinlungkongba Formation of northwestern Tibet, the upper Pondo Group of central Tibet, and the Jimba Jimba Calcarenite of the Carnarvon Basin, Western Australia. Based on these correlations, a Late Sakmarian (Sterlitamakian) age is preferred for the Dingjiazhai brachiopod fauna. Two new species are proposed: Globiella youwangensis sp. nov. and Elivina yunnanensis sp. nov.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"81-101"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619192","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986128","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619193
M. Dettmann, D. Jarzen
Abundant and diverse proteaceous-like triaperturate pollen from Campanian-Maastrichtian sediments in the Otway Basin, southeastern Australia are systematically documented and compared with pollen of extant Proteaceae. Segregation of fossil and extant pollen types has been effected on apertural characters of which six states have been identified. Apertures are colpoid, poroid or porate. Pores of Propylipollis Martin & Harris, 1974 conform with those of subfamilies Grevillioideae and Carnarvonioideae. Colpoids of Beaupreaidites Cookson emend. Martin, 1973, poroids of Lewalanipollis gen. nov., and pores of Cranwellipollis Martin & Harris, 1974 are represented in subfamilies Proteoideae and Persoonioideae. Pores of Proteacidites Cookson ex Couper, 1953 occur in subfamilies Proteoideae and Sphalmioideae. In the Otway Basin fossil record, triporate apertures appear earlier than tricolpoids, triporoids and biporates; and diversity levels of proteaceous pollen are higher than reported from elsewhere implying the ...
本文系统地记录了澳大利亚东南部Otway盆地Campanian-Maastrichtian沉积物中丰富多样的类变形科三孔花粉，并与现存变形科花粉进行了比较。化石和现存花粉类型的分离影响了花粉的孔隙特征，并鉴定出6种状态。孔径有胶体、多孔或多孔。Propylipollis Martin & Harris, 1974的孔隙与Grevillioideae亚科和Carnarvonioideae亚科的孔隙一致。Beaupreaidites的胶体，Cookson修正。Martin, 1973, Lewalanipollis gen. nov.的孔隙和Cranwellipollis Martin & Harris, 1974的孔隙分别代表了Proteoideae和persononioideae亚科。Proteacidites Cookson ex Couper, 1953的孔隙分布在Proteoideae亚科和Sphalmioideae亚科。在Otway盆地的化石记录中，三孔体比三孔体、三孔体和双孔体出现得更早;proteproteeous pollen的多样性水平比其他地方报道的要高，这意味着…
{"title":"Pollen of proteaceous-type from latest Cretaceous sediments, southeastern Australia","authors":"M. Dettmann, D. Jarzen","doi":"10.1080/03115519608619193","DOIUrl":"https://doi.org/10.1080/03115519608619193","url":null,"abstract":"Abundant and diverse proteaceous-like triaperturate pollen from Campanian-Maastrichtian sediments in the Otway Basin, southeastern Australia are systematically documented and compared with pollen of extant Proteaceae. Segregation of fossil and extant pollen types has been effected on apertural characters of which six states have been identified. Apertures are colpoid, poroid or porate. Pores of Propylipollis Martin & Harris, 1974 conform with those of subfamilies Grevillioideae and Carnarvonioideae. Colpoids of Beaupreaidites Cookson emend. Martin, 1973, poroids of Lewalanipollis gen. nov., and pores of Cranwellipollis Martin & Harris, 1974 are represented in subfamilies Proteoideae and Persoonioideae. Pores of Proteacidites Cookson ex Couper, 1953 occur in subfamilies Proteoideae and Sphalmioideae. In the Otway Basin fossil record, triporate apertures appear earlier than tricolpoids, triporoids and biporates; and diversity levels of proteaceous pollen are higher than reported from elsewhere implying the ...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"103-160"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619193","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986185","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619221
J. Grant‐Mackie, J. Buckeridge, P. Johns
An orthopteran wing fragment from the Upper Jurassic (Tithonian) of New Zealand is described as Notohagla mauii n. gen. et sp. and placed near species from the Jurassic-Cretaceous of Central Asia. Closely associated stratigraphically is a moulted abdomen of an urdid isopod Urda zelandica n. sp., similar to a Lower Cretaceous form from the Antarctic Peninsula.
来自新西兰上侏罗统(泰坦纪)的直鸟翼碎片被描述为Notohagla mauii n. gen. et sp.，并被放置在中亚侏罗纪-白垩纪的物种附近。与之密切相关的地层是一种乌尔达zelandica n. sp.的无毛等足类动物的脱毛腹部，类似于南极半岛的下白垩纪形式。
{"title":"Two new Upper Jurassic arthropods from New Zealand","authors":"J. Grant‐Mackie, J. Buckeridge, P. Johns","doi":"10.1080/03115519608619221","DOIUrl":"https://doi.org/10.1080/03115519608619221","url":null,"abstract":"An orthopteran wing fragment from the Upper Jurassic (Tithonian) of New Zealand is described as Notohagla mauii n. gen. et sp. and placed near species from the Jurassic-Cretaceous of Central Asia. Closely associated stratigraphically is a moulted abdomen of an urdid isopod Urda zelandica n. sp., similar to a Lower Cretaceous form from the Antarctic Peninsula.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"31-39"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59985841","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619189
S. Salisbury, P. Willis
Kambara implexidens sp. nov. is the second crocodylomorph from the Early Eocene (Ypresian) Tingamarra Local Fauna at Boat Mountain, near the township of Murgon, southeastern Queensland. Kambara is now the best represented genus of early Tertiary crocodylomorphs yet collected from Australia. The new species differs from Kambara murgonensis in several features, the most significant of which is possession of an interlocking dentition. Both species occur in a single stratigraphic horizon, possibly indicating two sympatric populations. The presence of adults and hatclings, coupled with the rarity of intermediately sized animals in the Murgon sample suggests the area may have been used as a nesting ground by one or both species. The new material permits a detailed reassessment of the phylogenetic relationships of Australia's Tertiary crocodylians, and provides impetus for a preliminary investigation into the relationships of many putative crocodylid stem taxa. We define Crocodyloidea and Crocodylidae as the des...
{"title":"A new crocodylian from the Early Eocene of south-eastern Queensland and a preliminary investigation of the phylogenetic relationships of crocodyloids","authors":"S. Salisbury, P. Willis","doi":"10.1080/03115519608619189","DOIUrl":"https://doi.org/10.1080/03115519608619189","url":null,"abstract":"Kambara implexidens sp. nov. is the second crocodylomorph from the Early Eocene (Ypresian) Tingamarra Local Fauna at Boat Mountain, near the township of Murgon, southeastern Queensland. Kambara is now the best represented genus of early Tertiary crocodylomorphs yet collected from Australia. The new species differs from Kambara murgonensis in several features, the most significant of which is possession of an interlocking dentition. Both species occur in a single stratigraphic horizon, possibly indicating two sympatric populations. The presence of adults and hatclings, coupled with the rarity of intermediately sized animals in the Murgon sample suggests the area may have been used as a nesting ground by one or both species. The new material permits a detailed reassessment of the phylogenetic relationships of Australia's Tertiary crocodylians, and provides impetus for a preliminary investigation into the relationships of many putative crocodylid stem taxa. We define Crocodyloidea and Crocodylidae as the des...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"7 1","pages":"179-226"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619189","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59985932","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}
Pub Date : 1996-01-01DOI: 10.1080/03115519608619190
M. Macphail
The habitat and habit of Australia's first recorded Tertiary marsupial species, Wynyardia bassiana, found some 130 years ago at Wynyard on the northwestern coast of Tasmania, remain enigmatic (Aplin 1987, Aplin & Rich 1990). Fossil pollen and spores preserved in a rafted clast of estuarine silts from the same sequence of earliest Miocene marine sandstones as the skeletal remains indicate the local vegetation was Nothofagus-gymnosperm evergreen rainforest, probably with a cryptogam-rich rather than woody subcanopy stratum. Comparisons with present-day Nothofagus rainforests suggest that, although the subcanopy would have been sufficiently open to allow the passage of a large ground-dwelling herbivorous marsupial, limited food resources are more consistent with Wynyardia being a generalist arboreal herbivore.
{"title":"A habitat for the enigmatic Wynyardia bassiana Spencer, 1901, Australia's first described Tertiary land mammal?","authors":"M. Macphail","doi":"10.1080/03115519608619190","DOIUrl":"https://doi.org/10.1080/03115519608619190","url":null,"abstract":"The habitat and habit of Australia's first recorded Tertiary marsupial species, Wynyardia bassiana, found some 130 years ago at Wynyard on the northwestern coast of Tasmania, remain enigmatic (Aplin 1987, Aplin & Rich 1990). Fossil pollen and spores preserved in a rafted clast of estuarine silts from the same sequence of earliest Miocene marine sandstones as the skeletal remains indicate the local vegetation was Nothofagus-gymnosperm evergreen rainforest, probably with a cryptogam-rich rather than woody subcanopy stratum. Comparisons with present-day Nothofagus rainforests suggest that, although the subcanopy would have been sufficiently open to allow the passage of a large ground-dwelling herbivorous marsupial, limited food resources are more consistent with Wynyardia being a generalist arboreal herbivore.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"20 1","pages":"227-243"},"PeriodicalIF":1.3,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519608619190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986057","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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