Scyliorhinus monsaugustus
Guinot, Underwood, Cappetta & Ward, 2013
Classification: Elasmobranchii Carcharhiniformes Scyliorhinidae
Reference of the original description
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671
Description:
Citation: Scyliorhinus monsaugustus Guinot, Underwood, Cappetta & Ward, 2013: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2025
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Description
Original diagnosis after Guinot et al. (2013) p. 654 [24889]: Teeth under 1 mm high, higher than wide, showing strong gradient heterodonty. Triangular main cusp flanked by a pair of lateral cusplets in anterior, two in laterals. Lingual and labial ornament varying with jaw position; lingual face of anterior teeth with fine longitudinal ridges restricted to the marginal areas, smooth or very weakly ornamented in laterals; labial face generally smooth or with few short vertical ridges below cusplets and/or on the basal region of main cusp in anteriors, reduced to strong crenulations on the basal bulge of lateral teeth; lower parasymphyseal teeth with stronger ornament. Main cusp weakly inclined distally in anterior teeth, more inclined and broader in laterals. Labial basal edge of crown concave. Root low,Vshaped with lingually and labially flared and flat to weakly convex basal face; strong and rounded mediolingual protuberance; labial lobe extremities flared and curved towards the cusplets. Numerous rounded and wide labial foramina.
Original diagnosis after Guinot et al. (2013) p. 654 [24889]: Teeth under 1 mm high, higher than wide, showing strong gradient heterodonty. Triangular main cusp flanked by a pair of lateral cusplets in anterior, two in laterals. Lingual and labial ornament varying with jaw position; lingual face of anterior teeth with fine longitudinal ridges restricted to the marginal areas, smooth or very weakly ornamented in laterals; labial face generally smooth or with few short vertical ridges below cusplets and/or on the basal region of main cusp in anteriors, reduced to strong crenulations on the basal bulge of lateral teeth; lower parasymphyseal teeth with stronger ornament. Main cusp weakly inclined distally in anterior teeth, more inclined and broader in laterals. Labial basal edge of crown concave. Root low,Vshaped with lingually and labially flared and flat to weakly convex basal face; strong and rounded mediolingual protuberance; labial lobe extremities flared and curved towards the cusplets. Numerous rounded and wide labial foramina.
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
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
Feeding ecology has shaped the evolution of modern sharks. Current Biology, 31(23), 5138–5148
DOI: 10.1016/j.cub.2021.09.028
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671
DOI: 10.1080/14772019.2013.767286
Late Cretaceous elasmobranch palaeoecology in NW Europe. Palaeogeography, Palaeoclimatology, Palaeoecology, 388, 23–41
DOI: 10.1016/j.palaeo.2013.07.027
Regional to global patterns in Late Cretaceous selachian (Chondrichthyes, Euselachii) diversity. Journal of Vertebrate Paleontology, 33(3), 521–531
DOI: 10.1080/02724634.2013.740116
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
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
Feeding ecology has shaped the evolution of modern sharks. Current Biology, 31(23), 5138–5148
DOI: 10.1016/j.cub.2021.09.028
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671
DOI: 10.1080/14772019.2013.767286
Late Cretaceous elasmobranch palaeoecology in NW Europe. Palaeogeography, Palaeoclimatology, Palaeoecology, 388, 23–41
DOI: 10.1016/j.palaeo.2013.07.027
Regional to global patterns in Late Cretaceous selachian (Chondrichthyes, Euselachii) diversity. Journal of Vertebrate Paleontology, 33(3), 521–531
DOI: 10.1080/02724634.2013.740116
