Translator Disclaimer
1 November 2011 Northeast Pacific Cretaceous Record of Pyropsis (Neogastropoda: Pyropsidae) and Paleobiogeography of the Genus
Author Affiliations +
Abstract

The neogastropod genus Pyropsis Conrad, 1860 (family Pyropsidae Stephenson, 1941) is recognized for the first time from Upper Cretaceous shallow-marine siliciclastic rocks in the region extending from Vancouver Island, British Columbia southward to southern California. Four new species were detected: Pyropsis aldersoni (earliest Coniacian, southern California), Pyropsis californica (early Coniacian, northern California), Pyropsis louellae (late Coniacian or early Santonian, northern California), and Pyropsis grahami (late early Campanian, Vancouver Island).

A critical review of the global reports of Pyropsis, a genus that has been commonly confused with other genera (especially Tudicla Röding, 1798), establishes that Pyropsis had an amphitropical distribution and lived in warm-temperate waters adjacent to a broad tropical realm. It is rare to uncommon wherever found, and its geologic range is middle Cenomanian to an age near the Cretaceous/Paleogene boundary (probably earliest Paleocene). It was moderately widespread before the Maastrichtian but was predominantly restricted to the New World during the Maastrichtian.

The Paleontological Society
Richard L. Squires "Northeast Pacific Cretaceous Record of Pyropsis (Neogastropoda: Pyropsidae) and Paleobiogeography of the Genus," Journal of Paleontology 85(6), 1199-1215, (1 November 2011). https://doi.org/10.1666/11-063.1
Accepted: 1 June 2011; Published: 1 November 2011
JOURNAL ARTICLE
17 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top