气候变化领域集成服务门户(CCPortal): Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys

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DOI	10.1016/j.palaeo.2019.109489
	Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys
	Manzanares E.; Escudero-Mozo M.J.; Ferrón H.; Martínez-Pérez C.; Botella H.
发表日期	2020
ISSN	0031-0182
卷号	539
英文摘要	Palaeogeographic changes that occurred during the Middle Triassic in the westernmost Tethyan domain were governed by a westward marine transgression of the Tethys Ocean. The transgression flooded wide areas of the eastern part of Iberia, forming new epicontinental shallow-marine environments, which were subsequently colonized by diverse faunas, including chondrichthyans. The transgression is recorded by two successive transgressive–regressive cycles: (1) middle–late Anisian and (2) late Anisian–early Carnian. Here, we describe the chondrichthyan fauna recovered from several Middle Triassic stratigraphic sections (Pelsonian-Longobardian) located at the Catalan Coastal Basin (western-most Tethys). The assemblage consists of isolated teeth of the species Hybodus plicatilis, Omanoselache bucheri, O. contrarius and Pseudodalatias henarejensis. Our data complement a series of recent studies on chondrichthyan faunas from Middle-Late Triassic marine basins of the Iberian Peninsula, allowing us to evaluate patterns of faunal colonization. Sharks that reached East Iberia during the first transgressive pulse (Anisian) show strong affinities with the Sephardic bioprovince (related with the Neotethys Ocean) whereas a later increase in chondrichthyan diversity (during the Ladinian transgressive pulse) is due to the arrival of taxa with affinities to European faunas (Palaeotethys). This contrasts with recently evaluated colonization patterns of invertebrates and conodonts, where Middle–Upper Anisian assemblages are composed of taxa with affinities to the Alpine/Germanic bioprovince whereas faunas from the Sephardic bioprovince only reached the shallow waters of the Iberian peninsula during the second (Ladinian) transgressive pulse. The differences between chondrichthyans vs. invertebrate and conodonts colonization patterns are explained here on the basis of differing dispersal strategies. Our finding suggests the existence, during the Anisian, of connections between Palaeo- and NeoTethys through the western Cimmerian microcontinent, which served as pathways for the entrance of chondrichthyans from the Sephardic bioprovince. © 2019 Elsevier B.V.
英文关键词	Anisian; Coastal chondrichthyans; Dispersal strategies; Ladinian; Palaeocurrents
语种	英语
scopus关键词	coastal zone; colonization; inland sea; paleocurrent; paleogeography; shallow water; shark; Tethys; transgression; Triassic; Spain; Chondrichthyes; Invertebrata
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150645
作者单位	Botany and Geology Department, University of Valencia, Avda. Dr. Moliner, 50, Burjassot, Valencia 46100, Spain; Instituto de Geociencias, UCM, CSIC, Calle del Dr. Severo Ochoa, 7, Madrid, 28040, Spain; Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de Valencia, Paterna, Valencia 46980, Spain; School of Earth Sciences, University of Bristol, Bristol, BS8 1TQ, United Kingdom
推荐引用方式 GB/T 7714	Manzanares E.,Escudero-Mozo M.J.,Ferrón H.,et al. Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys[J],2020,539.
APA	Manzanares E.,Escudero-Mozo M.J.,Ferrón H.,Martínez-Pérez C.,&Botella H..(2020).Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys.Palaeogeography, Palaeoclimatology, Palaeoecology,539.
MLA	Manzanares E.,et al."Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys".Palaeogeography, Palaeoclimatology, Palaeoecology 539(2020).