Hexanchus collinsonae
Ward, 1979
Classification: Elasmobranchii Hexanchiformes Hexanchidae
Reference of the original description
Additions to the fish fauna of the English Palaeogene. 3. A review of the Hexanchid sharks with a description of four new species. Tertiary Research, 2(3), 111–129
Additions to the fish fauna of the English Palaeogene. 3. A review of the Hexanchid sharks with a description of four new species. Tertiary Research, 2(3), 111–129
Description:
Citation: Hexanchus collinsonae Ward, 1979: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2024
Description
Original diagnose after Ward (1979) p. 117 [2493]: (Based on isolated antero-lateral teeth only). Hexanchus having small teeth, approximately one and a half times as long as high. Principal cusp barely larger than the first distal cusplet. Serration at base of mesial cutting edge varying from slight to strong. Root deep apico-basally. Root crown junction not parallel to lingua l longitudinal protuberance.
Original diagnose after Ward (1979) p. 117 [2493]: (Based on isolated antero-lateral teeth only). Hexanchus having small teeth, approximately one and a half times as long as high. Principal cusp barely larger than the first distal cusplet. Serration at base of mesial cutting edge varying from slight to strong. Root deep apico-basally. Root crown junction not parallel to lingua l longitudinal protuberance.
Remarks
shark-references Species-ID=2847;
valid after Ward (1979) p. 117 [2493]; Adnet & Martin (2007) p. 285 [22];
shark-references Species-ID=2847;
valid after Ward (1979) p. 117 [2493]; Adnet & Martin (2007) p. 285 [22];
References
London Clay Fossils of Kent and Essex. Rochester, Kent, Medway Fossil and Mineral Society, 228 p, ISBN: 978–0–9538243–1–1
Increase of body size in sixgill sharks with change in diet as a possible background of their evolution. Historical Biology, 19(4), 279–289
DOI: 10.1080/08912960701194461
Biometric analysis of the teeth of fossil and Recent hexanchid sharks and its taxonomic implications. Acta Palaeontologica Polonica, 51(3), 477–488
London Clay Fossils of the Isle of Sheppey. Medway Lapidary and Mineral Society, ISBN 0-9538243-0-6, 100pp.
Fossil sharks, rays and chimaeroids of the English Tertiary period. Gosport Museum, 1–47, 10 fig., 3 tabl., 16 pl.
The distribution of sharks, rays and chimaeroids in the English Palaeogene. Tertiary Research, 3(1), 13–19
Additions to the fish fauna of the English Palaeogene. 3. A review of the Hexanchid sharks with a description of four new species. Tertiary Research, 2(3), 111–129
London Clay Fossils of Kent and Essex. Rochester, Kent, Medway Fossil and Mineral Society, 228 p, ISBN: 978–0–9538243–1–1
Increase of body size in sixgill sharks with change in diet as a possible background of their evolution. Historical Biology, 19(4), 279–289
DOI: 10.1080/08912960701194461
Biometric analysis of the teeth of fossil and Recent hexanchid sharks and its taxonomic implications. Acta Palaeontologica Polonica, 51(3), 477–488
London Clay Fossils of the Isle of Sheppey. Medway Lapidary and Mineral Society, ISBN 0-9538243-0-6, 100pp.
Fossil sharks, rays and chimaeroids of the English Tertiary period. Gosport Museum, 1–47, 10 fig., 3 tabl., 16 pl.
The distribution of sharks, rays and chimaeroids in the English Palaeogene. Tertiary Research, 3(1), 13–19
Additions to the fish fauna of the English Palaeogene. 3. A review of the Hexanchid sharks with a description of four new species. Tertiary Research, 2(3), 111–129
