A stem bat (Chiroptera: Palaeochiropterygidae) from the late middle Eocene of northern Anatolia: implications for the dispersal and palaeobiology of early bats
A stem bat (Chiroptera: Palaeochiropterygidae) from the late middle Eocene of northern Anatolia: implications for the dispersal and palaeobiology of early bats
复制标题
DOI：
10.1007/s12549-018-0338-z
复制
发表时间：
2019-06-01
影响因子：
1.4
通讯作者：
Beard, K. Christopher
中科院分区：
文献类型：
--
作者：
Jones, Matthew F.;Coster, Pauline M. C.;Beard, K. Christopher
始新世蝙蝠的碎片遗骸被描述为产于始新世中期的Luluk段，位于现在安纳托利亚中北部的Pontide Pastee。这个新的分类单元在其已知的牙齿形态上与古翼手亚目的Lapichiropteryx和Stehlinia最为相似，因此在此基础上被称为古翼手亚目。地质和古生物学资料表明，在始新世中期，庞蒂德岛是一个位于新特提斯岛北方边缘沿着的岛屿。在岛屿环境中存在的一个后期幸存的干翼手类动物可能阐明了最早的蝙蝠，已经享有几乎全球分布的始新世早期之间的传播模式和能力。其他已知有颅后物质的古手足类与现存的能够在开放水域长距离散布的蝙蝠没有什么共同之处。新的土耳其蝙蝠分类群是一致的西欧和印度之间通过岛屿的Neotethys的北方边缘的一个假设的扩散走廊，并建议一个更大的范围内的骨骼和运动的变化Palaeochiropadae比目前公认的。
Fragmentary remains of an Eocene bat are described from the middle Eocene Luluk Member of the Uzuncaridere Formation on the Pontide terrane, in what is now north-central Anatolia. The new taxon most closely resembles the palaeochiropterygids Lapichiropteryx and Stehlinia in terms of its known dental morphology, and it is referred to the stem chiropteran family Palaeochiropterygidae on this basis. Geological and palaeontological data indicate that the Pontide terrane was an island situated along the northern margin of Neotethys during the middle Eocene. The presence of a late-surviving stem chiropteran in an island context potentially illuminates dispersal patterns and capabilities among the earliest bats, which already enjoyed a nearly global distribution by the early Eocene. Other palaeochiropterygids for which postcranial material is known share little in common with extant bats that are capable of long-range dispersal across open water. The new Turkish bat taxon is consistent with a hypothetical dispersal corridor between Western Europe and India via islands on the northern margin of Neotethys and suggests a larger range of skeletal and locomotor variation within Palaeochiropterygidae than is currently recognised.