干旱区生态环境知识资源中心(Arid): Differential diversification through the K-Pg boundary, and post-crisis opportunism in longirostrine crocodyliforms

Arid

DOI	10.1016/j.gr.2021.06.020
	Differential diversification through the K-Pg boundary, and post-crisis opportunism in longirostrine crocodyliforms
	Jouve, Stephane
通讯作者	Jouve, S (corresponding author), Sorbonne Univ, CNRS, CR2P, MNHN, 4 Pl Jussieu, F-75005 Paris, France.
来源期刊	GONDWANA RESEARCH
ISSN	1342-937X
EISSN	1878-0571
出版年	2021
卷号	99 页码:110-130
英文摘要	The evolution of the crocodyliforms through the K-Pg crisis has often been evaluated, but each time, the crocodyliforms were considered as forming a homogeneous group. I considered here, the evolution of two longirostrine taxa from the Campanian to the Thanetian: tethysuchians and gavialoids. The gavialoids are almost restricted to Laurasian continents, where tethysuchians form most of the Gondwanan crocodyliform fauna. This segregation can be compared with climatic distribution: tethysuchians are restricted to hot climatic areas, where gavialoids are restricted to a northern, warm temperate climatic belt from where tethysuchians were almost excluded. This suggests that gavialoids were more tolerant of cooler climates than tethysuchians. The tethysuchians could have been excluded from the European continent by the existence of a cool European oceanic current, whilst on the contrary, the presence of a protogulfstream along north-east American coast could have allowed the presence of some tethysuchians in marine realm in this area. Both gavialoids and tethysuchians strongly diversified after the K-Pg crisis, particularly on Gondwanan continents, and mostly with tethysuchian species. Most of these tethysuchians were non-marine during the Maastrichtian, and the number of marine species strongly increases after the K-Pg crisis, whilst the number of non-marine ones remains nearly constant. This rise of marine diversity compared to non-marine forms is congruent with previous hypotheses suggesting that the crocodyliforms did not suffer from the K-Pg crisis, but on the contrary, benefited from the extinction of large marine reptiles to diversify after the crisis mainly in this environment. So, if the history of the crocodyliforms on the whole is important, the evolution of each group should be considered separately, as their evolution could be influenced by regional environmental conditions and factors. (c) 2021 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
英文关键词	Tethysuchia Gavialoidea Paleobiogeography Paleoclimate Paleoenvironment K-Pg crisis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000702888300002
WOS关键词	PHYLOGENETIC-RELATIONSHIPS ; SAMPLING PROXIES ; MARINE REPTILES ; WESTERN DESERT ; FOSSIL RECORD ; PALEOCENE ; NORTH ; MOROCCO ; CROCODYLOMORPHA ; VERTEBRATES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363481
作者单位	[Jouve, Stephane] Sorbonne Univ, CNRS, CR2P, MNHN, 4 Pl Jussieu, F-75005 Paris, France
推荐引用方式 GB/T 7714	Jouve, Stephane. Differential diversification through the K-Pg boundary, and post-crisis opportunism in longirostrine crocodyliforms[J],2021,99:110-130.
APA	Jouve, Stephane.(2021).Differential diversification through the K-Pg boundary, and post-crisis opportunism in longirostrine crocodyliforms.GONDWANA RESEARCH,99,110-130.
MLA	Jouve, Stephane."Differential diversification through the K-Pg boundary, and post-crisis opportunism in longirostrine crocodyliforms".GONDWANA RESEARCH 99(2021):110-130.

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