Cretolamna ewelli
Siverson, Lindgren, Newbrey, Cederström & Cook, 2015
Classification: Elasmobranchii Lamniformes Otodontidae
Reference of the original description
Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type. Acta Palaeontologica Polonica, 60(2), 339–384
Cenomanian–Campanian (Late Cretaceous) mid-palaeolatitude sharks of Cretalamna appendiculata type. Acta Palaeontologica Polonica, 60(2), 339–384
Types
Cretolamna ewelli
Cretolamna ewelli
Description:
Citation: Cretolamna ewelli Siverson, Lindgren, Newbrey, Cederström & Cook, 2015: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
Description
Original diagnosis after Siverson, Lindgren, Newbrey, Cederström & Cook, 2015 [22014]: Upper anterior teeth with awl-shaped, slightly distally inclined cusp or with broader, recurved cusp. Cusplets minute to moderately large and erect to divergent on upper anterior teeth. Lateroposterior teeth with slender cusp and deep, moderately tightly curved median indentation of basal edge of root. Inner cutting edge of cusplets in lateroposterior teeth typically more convex than outer edge.
Original diagnosis after Siverson, Lindgren, Newbrey, Cederström & Cook, 2015 [22014]: Upper anterior teeth with awl-shaped, slightly distally inclined cusp or with broader, recurved cusp. Cusplets minute to moderately large and erect to divergent on upper anterior teeth. Lateroposterior teeth with slender cusp and deep, moderately tightly curved median indentation of basal edge of root. Inner cutting edge of cusplets in lateroposterior teeth typically more convex than outer edge.
References
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116(41), 20584–20590
DOI: 10.1073/pnas.1902693116
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116(41), 20584–20590
DOI: 10.1073/pnas.1902693116
