Heterodontus aff. boussioni
Guinot, Underwood, Cappetta & Ward, 2013
Classification: Elasmobranchii Heterodontiformes Heterodontidae
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
Types
Heterodontus aff. boussioni
Heterodontus aff. boussioni
Description:
Citation: Heterodontus aff. boussioni Guinot, Underwood, Cappetta & Ward, 2013: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024
No image available.
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Description
Original diagnose after Guinot et al. (2013) p. 601 [24889]: Anterior teeth cuspidate and higher than wide, with triangular and biconvex main cusp inclined lingually; one pair of slightly diverging lateral cusplets united to main cusp with well-developed outer cutting edge; heartshaped occlusal outline of the crown; broad apron with concave labial edge, depression on the apron at the base of the cusplets; strong labial ornamentation of more or less strong irregular vertical folds, anastomosed near labial edge; broad triangular mediolingual protuberance. V-shaped root with narrow branches; lingual protuberance with lingual foramen, basal face with one central and several labial foramina. Low, mesiodistally developed and labiolingually compressed lateral teeth of sigmoid occlusal outline; sigmoid and marked occlusal crest; lingual ornament of parallel labiolingually oriented ridges; labial ornament reticulate with occasional incipient secondary occlusal crest. Flat basal root face; oblique duct; several lingual and labial foramina.
Original diagnose after Guinot et al. (2013) p. 601 [24889]: Anterior teeth cuspidate and higher than wide, with triangular and biconvex main cusp inclined lingually; one pair of slightly diverging lateral cusplets united to main cusp with well-developed outer cutting edge; heartshaped occlusal outline of the crown; broad apron with concave labial edge, depression on the apron at the base of the cusplets; strong labial ornamentation of more or less strong irregular vertical folds, anastomosed near labial edge; broad triangular mediolingual protuberance. V-shaped root with narrow branches; lingual protuberance with lingual foramen, basal face with one central and several labial foramina. Low, mesiodistally developed and labiolingually compressed lateral teeth of sigmoid occlusal outline; sigmoid and marked occlusal crest; lingual ornament of parallel labiolingually oriented ridges; labial ornament reticulate with occasional incipient secondary occlusal crest. Flat basal root face; oblique duct; several lingual and labial foramina.
Remarks
shark-references Species-ID=13617;
shark-references Species-ID=13617;
References
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
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
