Microetmopterus wardi
Siverson, 1993
Classification: Elasmobranchii Squaliformes Etmopteridae
Reference of the original description
Maastrichtian Squaloid Sharks from Southern Sweden. Palaeontology, 36(1), 1–19
Maastrichtian Squaloid Sharks from Southern Sweden. Palaeontology, 36(1), 1–19
Types
Microetmopterus wardi
Holotype: LO: 5072; Paratype: LO: 5073; LO: 5074; LO: 5075; LO: 5076; LO: 5077;
Microetmopterus wardi
Holotype: LO: 5072; Paratype: LO: 5073; LO: 5074; LO: 5075; LO: 5076; LO: 5077;
Description:
Citation: Microetmopterus wardi Siverson, 1993: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Siverson (1993) p. 10 [2213]: Upper jaw teeth with very large lateral cusplets, reaching half the height or more of cusp. Labial face of crown very flat, without ornamentation. Flat, V-shaped basal face of root with two axial foramina or with infundibulum. Rectangular lower jaw teeth longer than high. Separate axial foramina; occasionally forming infundibulum. No disto-lingual foramen. Interlocking hollows poorly developed, especially in juveniles.
Original diagnosis after Siverson (1993) p. 10 [2213]: Upper jaw teeth with very large lateral cusplets, reaching half the height or more of cusp. Labial face of crown very flat, without ornamentation. Flat, V-shaped basal face of root with two axial foramina or with infundibulum. Rectangular lower jaw teeth longer than high. Separate axial foramina; occasionally forming infundibulum. No disto-lingual foramen. Interlocking hollows poorly developed, especially in juveniles.
Remarks
shark-references Species-ID=3706;
type species of Microetmopterus Siverson, 1993 p. 10 [2213] by original designation (Art. 68.2 ICZN);
valid after Siverson (1993) p. 10 [2213];
shark-references Species-ID=3706;
type species of Microetmopterus Siverson, 1993 p. 10 [2213] by original designation (Art. 68.2 ICZN);
valid after Siverson (1993) p. 10 [2213];
References
Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Of teeth and trees: A fossil tip-dating approach to infer divergence times of extinct and extant squaliform sharks. Zoologica Scripta, 47(5), 539–557
DOI: 10.1111/zsc.12299
Timing of deep-sea adaptation in dogfish sharks: insights from a supertree of extinct and extant taxa. Zoologica Scripta, 39(4), 331–342
DOI: 10.1111/j.1463-6409.2010.00427.x
Fossil record and origin of squaliform sharks (Chondrichthyes, Neoselachii). In Gallucci, V.F. & McFarlane, G.A. & Bargmann, G.G. (Eds). Biology and management of dogfish sharks. American Fisheries Society. Bethesda, Maryland: 19–38
Late Cretaceous and Danian neoselachians from southern Sweden. Lund Publications in Geology, 110, 1–28
Maastrichtian Squaloid Sharks from Southern Sweden. Palaeontology, 36(1), 1–19
Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Of teeth and trees: A fossil tip-dating approach to infer divergence times of extinct and extant squaliform sharks. Zoologica Scripta, 47(5), 539–557
DOI: 10.1111/zsc.12299
Timing of deep-sea adaptation in dogfish sharks: insights from a supertree of extinct and extant taxa. Zoologica Scripta, 39(4), 331–342
DOI: 10.1111/j.1463-6409.2010.00427.x
Fossil record and origin of squaliform sharks (Chondrichthyes, Neoselachii). In Gallucci, V.F. & McFarlane, G.A. & Bargmann, G.G. (Eds). Biology and management of dogfish sharks. American Fisheries Society. Bethesda, Maryland: 19–38
Late Cretaceous and Danian neoselachians from southern Sweden. Lund Publications in Geology, 110, 1–28
Maastrichtian Squaloid Sharks from Southern Sweden. Palaeontology, 36(1), 1–19
