Carcharhinus kasserinensis
Adnet et al., 2020
Classification: Elasmobranchii Carcharhiniformes Carcharhinidae
Reference of the original description
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38
Description:
Citation: Carcharhinus kasserinensis Adnet et al., 2020: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
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Description
Original diagnosis after Adnet et al., 2020 [28754]: Medium-sized carcharhinid species belonging to the “Bull-group” and only known by isolated teeth. Marked dignathic heterodonty with flat, blade-like cusps in upper teeth and weak erected, asymetrical cusps in lower teeth. Upper teeth display a triangular crown without distinct anterior heel when lateral heel is reduced to oblique cutting edge, partially notched from the principal cusp. Upper mesial edge of the cusp appears to be deflected distally and both cutting edges are fully but irregularly serrated. Root is large and tall, especially in the central part leading to a medially incurved crown-root boundary in labial view. Lower teeth have an erect cusp with irregularly serrated cutting edges from apex to asymmetrical heels, with one developed mesially or distally. Root is peculiarly massive medially with a deep and wide nutritive groove.
Original diagnosis after Adnet et al., 2020 [28754]: Medium-sized carcharhinid species belonging to the “Bull-group” and only known by isolated teeth. Marked dignathic heterodonty with flat, blade-like cusps in upper teeth and weak erected, asymetrical cusps in lower teeth. Upper teeth display a triangular crown without distinct anterior heel when lateral heel is reduced to oblique cutting edge, partially notched from the principal cusp. Upper mesial edge of the cusp appears to be deflected distally and both cutting edges are fully but irregularly serrated. Root is large and tall, especially in the central part leading to a medially incurved crown-root boundary in labial view. Lower teeth have an erect cusp with irregularly serrated cutting edges from apex to asymmetrical heels, with one developed mesially or distally. Root is peculiarly massive medially with a deep and wide nutritive groove.
Remarks
shark-references Species-ID=16000;
shark-references Species-ID=16000;
References
Combining palaeontological and neontological data shows a delayed diversification burst of carcharhiniform sharks likely mediated by environmental change. Scientific Reports, 12, Article 21906
DOI: 10.1038/s41598-022-26010-7
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38
DOI: 10.26879/1085
Combining palaeontological and neontological data shows a delayed diversification burst of carcharhiniform sharks likely mediated by environmental change. Scientific Reports, 12, Article 21906
DOI: 10.1038/s41598-022-26010-7
Diversity and renewal of tropical elasmobranchs around the Middle Eocene Climatic Optimum (MECO) in North Africa: New data from the lagoonal deposits of Djebel el Kébar, Central Tunisia. Palaeontologica Electronica, 23(2), Article a38
DOI: 10.26879/1085
