来自坦桑尼亚和赞比亚卡鲁裂谷盆地的三叠纪温度断层的新数据

IF 1.5 3区地球科学 Q2 PALEONTOLOGY

Geodiversitas Pub Date : 2021-06-03 DOI:10.5252/geodiversitas2021v43a12

J. Steyer, B. Peecook, Thomas Arbez, S. Nesbitt, S. Tolan, M. Stocker, Roger M. H. Smith, K. Angielczyk, C. Sidor

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引用次数: 3

摘要

摘要:最近采集的中? ?对坦桑尼亚鲁胡胡裂谷盆地和赞比亚卢安瓜裂谷盆地晚三叠世进行了描述和图解。它们归属于cf. Cherninia megarhina (Chernin & Cosgriff, 1975)，乳齿龙目。立体脊柱炎。，和cf. Stereospondyli，以及可能属于一个新分类单元的小成年个体的中心间。尽管碎片化，但这些新材料使坦桑尼亚和赞比亚三叠纪temnospondyl组合的分类更新成为可能，并记录了有趣的系统发育和生态多样性。例如，在赞比亚的三叠纪乳齿龙中，Cherninia megarhina与Stanocephalosaurus pronus (Howie, 1970)在非海洋环境中共存。与南非卡鲁盆地相似，这些temnospondyl组合也说明了该群体在二叠纪-三叠纪大灭绝后的快速恢复，并有助于更好地理解这次灭绝对盘古大陆南部四足动物群的影响。

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New data on the Triassic temnospondyls from the Karoo rift basins of Tanzania and Zambia

ABSTRACT Temnospondyl specimens collected recently in the Middle-?Late Triassic of the Ruhuhu (Tanzania) and Luangwa (Zambia) rift basins are described and figured. They are attributed to cf. Cherninia megarhina (Chernin & Cosgriff, 1975), Mastodonsauroidea indet., Stereospondyli indet., and cf. Stereospondyli, as well as intercentra of small adult individual(s) which may belong to a new taxon. Although fragmentary, this new material allows taxonomic updates to the Triassic temnospondyl assemblages of Tanzania and Zambia and documents an interesting phylogenetic and ecological diversity. For example, among the Triassic mastodonsauroids of Zambia, Cherninia megarhina coexisted with Stanocephalosaurus pronus (Howie, 1970) in nonmarine environments. Similar to that of the South African Karoo Basin, these temnospondyl assemblages also illustrate the rapid recovery of the group after the Permian-Triassic mass extinction and contribute to a better understanding of the impact of this extinction on the tetrapod faunas of southern Pangea.

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来源期刊

Geodiversitas 地学-古生物学

CiteScore

3.00

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： Geodiversitas is a fully electronic journal, with a continuous publication stream, devoted to varied aspects of Earth Sciences. It publishes original results particularly on systematics, phylogeny, paleobiodiversity and paleoenvironment. Thematic issues may also be published under the responsibility of a guest editor.