Abdounia richteri
Engelbrecht, Mörs, Reguero & Kriwet, 2017
Classification: Elasmobranchii Carcharhiniformes Carcharhinidae
Reference of the original description
New carcharhiniform sharks (Chondrichthyes, Elasmobranchii) from the early to middle Eocene of Seymour Island, Antarctic Peninsula. Journal of Vertebrate Paleontology, 37(6), Article e1371724
New carcharhiniform sharks (Chondrichthyes, Elasmobranchii) from the early to middle Eocene of Seymour Island, Antarctic Peninsula. Journal of Vertebrate Paleontology, 37(6), Article e1371724
Types
Abdounia richteri
Holotype: NRM-PZ: P16209; Paratype: NRM-PZ: P16206–16207; NRM-PZ: P16208–16211;
Abdounia richteri
Holotype: NRM-PZ: P16209; Paratype: NRM-PZ: P16206–16207; NRM-PZ: P16208–16211;
Description:
Citation: Abdounia richteri Engelbrecht, Mörs, Reguero & Kriwet, 2017: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Engelbrecht, Mörs, Reguero & Kriwet, 2017 [25864]: A species of Abdounia characterized by the following combination of dental characters: anterior teeth with slender and straight principal cusp; smooth lingual crown face; short and fine striae at the base of the labial crown face; one pair of rather slender lateral cusplets with rounded apices; well-developed central lingual protuberance; short root with poorly separated root lobes in anterior teeth; root lobes slightly projecting outwards; and the basal edge of the root is straight to slightly concave.
Original diagnosis after Engelbrecht, Mörs, Reguero & Kriwet, 2017 [25864]: A species of Abdounia characterized by the following combination of dental characters: anterior teeth with slender and straight principal cusp; smooth lingual crown face; short and fine striae at the base of the labial crown face; one pair of rather slender lateral cusplets with rounded apices; well-developed central lingual protuberance; short root with poorly separated root lobes in anterior teeth; root lobes slightly projecting outwards; and the basal edge of the root is straight to slightly concave.
Remarks
shark-references Species-ID=14965;
shark-references Species-ID=14965;
References
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
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
New carcharhiniform sharks (Chondrichthyes, Elasmobranchii) from the early to middle Eocene of Seymour Island, Antarctic Peninsula. Journal of Vertebrate Paleontology, 37(6), Article e1371724
DOI: 10.1080/02724634.2017.1371724
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
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
New carcharhiniform sharks (Chondrichthyes, Elasmobranchii) from the early to middle Eocene of Seymour Island, Antarctic Peninsula. Journal of Vertebrate Paleontology, 37(6), Article e1371724
DOI: 10.1080/02724634.2017.1371724
