Centrosqualus mustardi
Cappetta, Morrison & Adnet, 2019
Classification: Elasmobranchii Squaliformes Squalidae
Reference of the original description
A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages. Historical Biology, 33(8), 1121–1182
A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages. Historical Biology, 33(8), 1121–1182
Description:
Citation: Centrosqualus mustardi Cappetta, Morrison & Adnet, 2019: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
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Centrosqualus mustardi Cappetta, Morrison & Adnet, 2019, Late Cretaceous, Late Campanian, Northumberland Formation, Nanalmo Group, Collishaw Point, Hornby Island, Canada, collection and © Adam Anderson
Centrosqualus mustardi Cappetta, Morrison & Adnet, 2019, Late Cretaceous, Late Campanian, Northumberland Formation, Nanalmo Group, Collishaw Point, Hornby Island, Canada, collection and © Adam Anderson
Description
Original diagnosis after Cappetta, Morrison & Adnet, 2019 [27810]: Teeth strongly flattened labio-lingually; cusp short, narrow, erect in anterior files, bending distally in lateral files. The mesial cutting edge is sinuous and slightly serrated on its basal section. The distal cutting edge of the cusp is vertical in anterior files dropping to oblique in lateral ones. The high (more or less) distal heel is rounded and serrated in anterior files, smooth in lateral files. Apron broad at its beginning, then vertical, with a rounded extremity clearly overpassing the median sinus of the root. The uvula is small and narrow, perpendicular to the base of the cusp. Root clearly concave in profile view, with a strong and salient straight lingual bulge. There is a medio-lingual foramen opening on the bulge, just below the uvula. A central foramen opens below the first one, on the basal face of the root.
Original diagnosis after Cappetta, Morrison & Adnet, 2019 [27810]: Teeth strongly flattened labio-lingually; cusp short, narrow, erect in anterior files, bending distally in lateral files. The mesial cutting edge is sinuous and slightly serrated on its basal section. The distal cutting edge of the cusp is vertical in anterior files dropping to oblique in lateral ones. The high (more or less) distal heel is rounded and serrated in anterior files, smooth in lateral files. Apron broad at its beginning, then vertical, with a rounded extremity clearly overpassing the median sinus of the root. The uvula is small and narrow, perpendicular to the base of the cusp. Root clearly concave in profile view, with a strong and salient straight lingual bulge. There is a medio-lingual foramen opening on the bulge, just below the uvula. A central foramen opens below the first one, on the basal face of the root.
References
Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages. Historical Biology, 33(8), 1121–1182
DOI: 10.1080/08912963.2019.1681421
Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
A shark fauna from the Campanian of Hornby Island, British Columbia, Canada: an insight into the diversity of Cretaceous deep-water assemblages. Historical Biology, 33(8), 1121–1182
DOI: 10.1080/08912963.2019.1681421
