AUTHOR=Ma Zhiheng , Zhang Tingshan , Chen Jingwen , Popa Mihai Emilian , Li Hongjiao , Li Shixin , Zeng Jianli , Zhang Xi 

TITLE=The earliest belemnite linked with the Carnian Pluvial Episode

JOURNAL=Frontiers in Ecology and Evolution

VOLUME=11

YEAR=2023

URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1236222

DOI=10.3389/fevo.2023.1236222

ISSN=2296-701X

ABSTRACT=<p>Sinobelemnites from the Upper Triassic (Carnian, Julian 2) of the Luxi County, Yunnan Province, Southwest China are described and discussed, with two species: <italic>Sinobelemnites maantangensis</italic> and <italic>Sichuanobelus luxiensis</italic> sp. nov. <italic>Sichuanobelus luxiensis</italic> sp. nov. has a rostrum with a single alveolar groove along the dorsal side, with the rostral diameter increasing quickly along the rostrum cavum region. The rough rostral surface of Sinobelemnites is typical for the group. The occurrence of belemnites during the Carnian, especially during the Carnian Pluvial Episode (CPE), indicates the CPE as a drive for belemnite flourishment and preservation.</p>