期刊
FRONTIERS IN ECOLOGY AND EVOLUTION
卷 11, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fevo.2023.1236222
关键词
sinobelemnites; Sichuanobelus luxiensis sp. nov.; Carnian Pluvial Episode (CPE); Southwest China; early beleminites distribution
类别
This study describes Sinobelemnites from the Upper Triassic of Luxi County in Yunnan Province, Southwest China, including a new species called Sichuanobelus luxiensis sp. nov. The presence of belemnites during the Carnian, particularly during the Carnian Pluvial Episode, suggests that this event played a role in the flourishing and preservation of belemnites.
Sinobelemnites from the Upper Triassic (Carnian, Julian 2) of the Luxi County, Yunnan Province, Southwest China are described and discussed, with two species: Sinobelemnites maantangensis and Sichuanobelus luxiensis sp. nov. Sichuanobelus luxiensis 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.
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