A new parareptile from the Cisuralian Pedra de Fogo Formation of north-eastern Brazil is described. Karutia fortunata gen. et sp. nov. is the first Gondwanan member of Acleistorhinidae, a clade previously known only from North America but thought to be closely related to the Russian Lanthanosuchidae. A re-examination of parareptile phylogeny indicates that lanthanosuchids are not closely related to acleistorhinids. These results are more congruent both stratigraphically and biogeographically than the previous ‘lanthanosuchoid’ position for acleistorhinids, as they eliminate a 15 Ma ghost lineage within parareptiles, leaving Acleistorhinidae as an exclusively Pennsylvanian/Cisuralian clade from western Pangaea. Karutia fortunata contributes to our knowledge of the early Permian diversity of Parareptilia in Gondwana, a clade previously represented only by the mesosaurid inhabitants of the Irati-Whitehill epicontinental sea in the southern portion of the supercontinent. The new parareptile joins captorhinids in the amniote record of the Pedra de Fogo Formation, improving our picture of the inland tetrapod fauna of the southern hemisphere during the Cisuralian.

http://zoobank.org:pub:79D59764-4DA0-4C28-B4D3-C517BBF64D81

描述了巴西东北部Cisuralian Pedra de Fogo地层的新副爬虫。Karutia fortunata gen。等。十一月 是第一个刚犬科的冈瓦纳人，以前只是从北美才知道这种进化枝，但被认为与俄罗斯兰such科密切相关。对副爬行动物系统发育的重新检查表明，lanthanosuchids与aceristorhinids并没有密切的关系。这些结果在地层和生物地理上都比以前的蛛网甲虫的“ lanthanosuchoid”位置更加一致，因为它们消除了副爬行动物中的15 Ma鬼血统，使蛛网虫科成为了来自Pangaea西部的唯一宾夕法尼亚州/西索里亚人的进化枝。桐树有助于我们了解冈瓦纳Parareptilia的早期二叠纪生物多样性，该进化枝以前仅由超大陆南部的Irati-Whitehill陆上大陆海的中龙种群代表。这种新的副爬行动物在角鲨鱼的佩德拉·德·福戈组的羊膜记录中加入了蛛网膜类动物，从而改善了我们在西索里尔时期南半球内陆四足动物群的情况。

http://zoobank.org:pub:79D59764-4DA0-4C28-B4D3-C517BBF64D81