期刊
LETHAIA
卷 37, 期 3, 页码 307-315出版社
WILEY
DOI: 10.1080/00241160410002054
关键词
Ammonoidea; extinction; Hangenberg Event; Late Devonian; Morocco
类别
A co-occurrence of the clymeniid Postclymenia evoluta Schmidt, 1924 and the goniatite Acutimitoceras hilarum Korn, 2002 is reported from the Anti-Atlas of Morocco. Both species occur in the same limestone horizon within the Acutimitoceras prorsum Zone, that has yielded an exclusive conodont fauna of the Upper praesulcata Zone (latest Devonian, above the Hangenberg Black Shale). This record is firm evidence that some clymeniids survived the global Hangenberg Event, but soon later became extinct without descendants.
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