{"title":"New Data on the Morphology and Distribution of Kotlassia prima Amalitzky (Tetrapoda, Seymouriamorpha)","authors":"V. V. Bulanov","doi":"10.1134/s0031030124600380","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>New data on the morphology and distribution of the kotlassiid <i>Kotlassia prima</i> Amalitzky (Seymouriamorpha) are provided based on fragmentary remains from five upper Permian localities in Eastern Europe. The new finds suggest the absence of a seismosensory system at the final stages of ontogeny in <i>K. prima</i> that may indicate a more terrestrial ecology for this species in the adult state in comparison with other late Permian representatives of the family (<i>Microphon</i> spp.), for which the paedomorphic features in the cranial and postcranial anatomy are common. The homodont dentition and the simple shape of the teeth allow interpretation of <i>K. prima</i> as a predator with a wide trophic niche, the prey of which was determined by resources of the specific biotopes and might include both invertebrates and relatively small vertebrates. The new finds show that <i>K. prima</i> was typical for tetrapod associations of the northeast of the East European Platform, extend the stratigraphic range of the genus <i>Kotlassia</i> up to the terminal Permian (Zhukovian), and indicate that the family Kotlassiidae maintained its taxonomic diversity until the Permo–Triassic cenotic crisis, continuing to play a significant role in vertebrate communities in the time preceding it.</p>","PeriodicalId":19816,"journal":{"name":"Paleontological Journal","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Paleontological Journal","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s0031030124600380","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
New data on the morphology and distribution of the kotlassiid Kotlassia prima Amalitzky (Seymouriamorpha) are provided based on fragmentary remains from five upper Permian localities in Eastern Europe. The new finds suggest the absence of a seismosensory system at the final stages of ontogeny in K. prima that may indicate a more terrestrial ecology for this species in the adult state in comparison with other late Permian representatives of the family (Microphon spp.), for which the paedomorphic features in the cranial and postcranial anatomy are common. The homodont dentition and the simple shape of the teeth allow interpretation of K. prima as a predator with a wide trophic niche, the prey of which was determined by resources of the specific biotopes and might include both invertebrates and relatively small vertebrates. The new finds show that K. prima was typical for tetrapod associations of the northeast of the East European Platform, extend the stratigraphic range of the genus Kotlassia up to the terminal Permian (Zhukovian), and indicate that the family Kotlassiidae maintained its taxonomic diversity until the Permo–Triassic cenotic crisis, continuing to play a significant role in vertebrate communities in the time preceding it.
关于 Kotlassia prima Amalitzky（四足纲，Seymouriamorpha）形态和分布的新数据
摘要 根据东欧五个二叠纪上层地点的零散遗骸，提供了关于蝶形目 Kotlassia prima Amalitzky（Seymouriamorpha）的形态和分布的新数据。新的发现表明，K. prima 在本体发育的最后阶段没有地震感觉系统，这可能表明该物种成年后的生态环境与该科（Microphon 属）的其他二叠纪晚期代表物种相比更加陆地化，该科的颅骨和颅骨后解剖学中的拟态特征很常见。K.骁龙的同齿和牙齿的简单形状使其可以被解释为一种具有广泛营养生态位的食肉动物，其猎物由特定生物群落的资源决定，可能包括无脊椎动物和相对较小的脊椎动物。新的发现表明 K. prima 是东欧地台东北部典型的四足动物群落，将 Kotlassia 属的地层范围扩展到了二叠纪末（朱可夫期），并表明 Kotlassiidae 科在二叠三叠纪岑岭危机之前一直保持着分类多样性，在危机之前的脊椎动物群落中继续发挥着重要作用。
期刊介绍：
Paleontological Journal (Paleontologicheskii zhurnal) is the principal Russian periodical in paleontology. The journal publishes original work on the anatomy, morphology, and taxonomy of fossil organisms, as well as their distribution, ecology, and origin. It also publishes studies on the evolution of organisms, ecosystems, and the biosphere and provides invaluable information on global biostratigraphy with an emphasis on Eastern Europe and Asia.
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