Eodalatias austrinalis
Engelbrecht, Mörs, Reguero & Kriwet, 2017
Classification: Elasmobranchii Squaliformes Dalatiidae
Reference of the original description
Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica. Journal of South American Earth Sciences, 78, 175–189
Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica. Journal of South American Earth Sciences, 78, 175–189
Description:
Citation: Eodalatias austrinalis Engelbrecht, Mörs, Reguero & Kriwet, 2017: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024
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Description
Original diagnose after Engelbrecht et al. (2017) p. 181 [25551]: Extinct dalatiid shark defined by the following combination of lower tooth characters: very compressed lower teeth, with a low, convex and rather broad crown, which slightly is inclined towards the rear; mesial and distal cutting edges coarsely serrated; distal heel also with coarse serrations; distal cutting edge nearly vertical; mesial cutting edge comparatively longer than distal cutting edge and slightly concave to more or less straight; the distal heel is convex and low; short, broad, convex, and bifid apron; uvula absent; root mesio-distally compressed, with well separated root lobes; articular facets are restricted to upper part of root.
Original diagnose after Engelbrecht et al. (2017) p. 181 [25551]: Extinct dalatiid shark defined by the following combination of lower tooth characters: very compressed lower teeth, with a low, convex and rather broad crown, which slightly is inclined towards the rear; mesial and distal cutting edges coarsely serrated; distal heel also with coarse serrations; distal cutting edge nearly vertical; mesial cutting edge comparatively longer than distal cutting edge and slightly concave to more or less straight; the distal heel is convex and low; short, broad, convex, and bifid apron; uvula absent; root mesio-distally compressed, with well separated root lobes; articular facets are restricted to upper part of root.
Remarks
shark-references Species-ID=14915;
type species of Eodalatias Engelbrecht et al., 2017 p. 181 [25551] by original designation (Art. 68.2 ICZN);
valid after Engelbrecht et al. (2017) p. 181 [25551];
shark-references Species-ID=14915;
type species of Eodalatias Engelbrecht et al., 2017 p. 181 [25551] by original designation (Art. 68.2 ICZN);
valid after Engelbrecht et al. (2017) p. 181 [25551];
References
Eocene Shark Teeth From Peninsular Antarctica: Windows to Habitat Use and Paleoceanography. Paleoceanography and Paleoclimatology, 39(11), Article e2024PA004965
DOI: 10.1029/2024PA004965
Middle Eocene chondrichthyan fauna from Antarctic Peninsula housed in the Museo de La Plata, Argentina. Advances in Polar Science, 35(1), 14–47
DOI: 10.12429/j.advps.2023.0035
Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica. Journal of South American Earth Sciences, 78, 175–189
DOI: 10.1016/j.jsames.2017.07.006
Eocene Shark Teeth From Peninsular Antarctica: Windows to Habitat Use and Paleoceanography. Paleoceanography and Paleoclimatology, 39(11), Article e2024PA004965
DOI: 10.1029/2024PA004965
Middle Eocene chondrichthyan fauna from Antarctic Peninsula housed in the Museo de La Plata, Argentina. Advances in Polar Science, 35(1), 14–47
DOI: 10.12429/j.advps.2023.0035
Eocene squalomorph sharks (Chondrichthyes, Elasmobranchii) from Antarctica. Journal of South American Earth Sciences, 78, 175–189
DOI: 10.1016/j.jsames.2017.07.006
