Squalicorax microserratus
Cappetta, Adnet, Akkrim & Amalik, 2014
Classification: Elasmobranchii Lamniformes Anacoracidae
Reference of the original description
New Squalicorax species (Neoselachii: Lamniformes) from the Lower Maastrichtian of Ganntour phosphate deposit, Morocco. Palaeovertebrata, 38, Article e3
New Squalicorax species (Neoselachii: Lamniformes) from the Lower Maastrichtian of Ganntour phosphate deposit, Morocco. Palaeovertebrata, 38, Article e3
Description:
Citation: Squalicorax microserratus Cappetta, Adnet, Akkrim & Amalik, 2014: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024
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Squalicorax microserratus Cappetta, Adnet, Akkrim & Amalik, 2014, Upper Cretaceous, Maastrichtian, Layer C6, Benguerir, Morocco © Jean-Francois LHOMME, www.vertebres-fossiles.com
Squalicorax microserratus Cappetta, Adnet, Akkrim & Amalik, 2014, Upper Cretaceous, Maastrichtian, Layer C6, Benguerir, Morocco © Jean-Francois LHOMME, www.vertebres-fossiles.com
Description
Original diagnose after Cappetta et al. (2014) p. 5 [21747]: Species with thick teeth that can reach up to about 20 mm in total width, characterized by regularly and very finely serrated cutting edges. The mesial cutting edge is long and slightly convex, while the distal one is much shorter, straight or slightly concave; there is a short and low distal heel separated from the distal cutting edge by a notch making an angle of more than 90°, except in anterior and anterolateral teeth that lack a notch. The labial face of the crown is flat, without a transverse bulge at its base; lingual face moderately convex. Bulky root with an overall rectangular outline, with a small marked median concavity. Marginal edges of the root straight or more often with a concave notch more marked mesially.
Original diagnose after Cappetta et al. (2014) p. 5 [21747]: Species with thick teeth that can reach up to about 20 mm in total width, characterized by regularly and very finely serrated cutting edges. The mesial cutting edge is long and slightly convex, while the distal one is much shorter, straight or slightly concave; there is a short and low distal heel separated from the distal cutting edge by a notch making an angle of more than 90°, except in anterior and anterolateral teeth that lack a notch. The labial face of the crown is flat, without a transverse bulge at its base; lingual face moderately convex. Bulky root with an overall rectangular outline, with a small marked median concavity. Marginal edges of the root straight or more often with a concave notch more marked mesially.
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
Late Cretaceous anacoracid sharks (Squalicorax) from Duwi Formation, Gebel Duwi, central Eastern Desert, Egypt: qualitative and quantitative analyses. Historical Biology, 33(11), 3056–3064
DOI: 10.1080/08912963.2020.1847102
Feeding ecology has shaped the evolution of modern sharks. Current Biology, 31(23), 5138–5148
DOI: 10.1016/j.cub.2021.09.028
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
New Squalicorax species (Neoselachii: Lamniformes) from the Lower Maastrichtian of Ganntour phosphate deposit, Morocco. Palaeovertebrata, 38, Article e3
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Late Cretaceous anacoracid sharks (Squalicorax) from Duwi Formation, Gebel Duwi, central Eastern Desert, Egypt: qualitative and quantitative analyses. Historical Biology, 33(11), 3056–3064
DOI: 10.1080/08912963.2020.1847102
Feeding ecology has shaped the evolution of modern sharks. Current Biology, 31(23), 5138–5148
DOI: 10.1016/j.cub.2021.09.028
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
New Squalicorax species (Neoselachii: Lamniformes) from the Lower Maastrichtian of Ganntour phosphate deposit, Morocco. Palaeovertebrata, 38, Article e3
