巴基斯坦Siwalik山上新世至早更新世鹿类(鹿科,哺乳目)化石描述及印度次大陆鹿类古生物地理学探讨

IF 1.6 4区 地球科学 Q2 PALEONTOLOGY Geobios Pub Date : 2022-10-01 DOI:10.1016/j.geobios.2022.08.001
Roman Croitor , Muhammad Akbar Khan , Sayyed Ghyour Abbas , Muhammad Adeeb Babar , Muhammad Asim , Muhammad Akhtar
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引用次数: 1

摘要

本文介绍了巴基斯坦上西瓦里克的五个化石遗址(Sardhok, Panjan Sher Shahana, Puran, Jari Kas和Potha)的新鹿角遗骸的描述。对鹿角材料的系统研究揭示了六种鹿角类的存在:Metacervocerus punjabiensis, Rucervus sp., Panolia sp., Hyelaphus sp., Praesinomegaceros bakri,以及一种与Kuruksai(塔吉克斯坦)早更新世“Eucladoceros sp.”有一定亲缘关系的代表性较差的大型鹿角类。帕诺里亚的遗骸代表了已知最早的这一鹿科谱系的古生物记录。与Metacervocerus和Rucervus不同,它们在阿尔卑斯-喜马拉雅山脉带的东部和北部有系统发育上密切相关的对应体,Panolia的进化发生在印度次大陆。Panolia谱系进入印度次大陆标志着它从鹿/鹿进化分支的系统发育分裂。最早的鹿科向印度次大陆扩散事件是晚中新世鹿科在东南亚的进化辐射和生态多样化。Praesinomegaceros和Metacervocerus很可能经由中亚进入印度次大陆。可能来自Kuruksai(塔吉克斯坦)的“Eucladoceros sp.”也是这种情况。Panolia和Rucervus的传播方式尚不清楚。中更新世100天冰期旋回的建立引发了小型海螺(Muntiacus和Hyelaphus)向印度次大陆的扩散:冰期高峰期间海平面下降,为它们打开了从南部Sundaland向印度次大陆扩散的通道。
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Description of new Pliocene to Early Pleistocene deer (Cervidae, Mammalia) remains from the Siwalik Hills in Pakistan with a discussion on paleobiogeography of cervids from the Indian subcontinent

This article presents a description of new antler remains from five fossiliferous sites (Sardhok, Panjan Sher Shahana, Puran, Jari Kas, and Potha) of the Upper Siwaliks in Pakistan. The systematic study of the antler material revealed the presence of six cervid forms: Metacervocerus punjabiensis, Rucervus sp., Panolia sp., Hyelaphus sp., Praesinomegaceros bakri, and a poorly represented large cervid that shows a certain affinity with “Eucladoceros sp.” from the Early Pleistocene of Kuruksai (Tajikistan). The remains of Panolia represent the earliest known paleontological record of this cervid lineage. Unlike Metacervocerus and Rucervus that have had phylogenetically closely related counterparts in east and north of the Alpine-Himalayan mountain belt, the evolution of Panolia took place in the Indian subcontinent. The entry of Panolia lineage into the Indian subcontinent marks its phylogenetic split from the main Cervus/Rusa evolutionary branch. The earliest dispersal events of cervids into the Indian subcontinent was preceded by the late Miocene evolutionary radiation and ecological diversification of the subfamily Cervinae in Southeastern Asia. Praesinomegaceros and Metacervocerus most probably entered the Indian subcontinent via Central Asia. Possibly, this is also the case of “Eucladoceros sp.” from Kuruksai (Tajikistan). The dispersal ways of Panolia and Rucervus remain unclear. The dispersals of small-sized cervids (Muntiacus and Hyelaphus) into the Indian subcontinent was triggered by the establishment of the 100-ky glaciation cycle during the Middle Pleistocene: the sea level dropped during glacial peaks and opened to them the dispersal route from Sundaland in the South.

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来源期刊
Geobios
Geobios 地学-古生物学
CiteScore
3.30
自引率
6.20%
发文量
28
审稿时长
6-12 weeks
期刊介绍: Geobios publishes bimonthly in English original peer-reviewed articles of international interest in any area of paleontology, paleobiology, paleoecology, paleobiogeography, (bio)stratigraphy and biogeochemistry. All taxonomic groups are treated, including microfossils, invertebrates, plants, vertebrates and ichnofossils. Geobios welcomes descriptive papers based on original material (e.g. large Systematic Paleontology works), as well as more analytically and/or methodologically oriented papers, provided they offer strong and significant biochronological/biostratigraphical, paleobiogeographical, paleobiological and/or phylogenetic new insights and perspectices. A high priority level is given to synchronic and/or diachronic studies based on multi- or inter-disciplinary approaches mixing various fields of Earth and Life Sciences. Works based on extant data are also considered, provided they offer significant insights into geological-time studies.
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