Thrinacodus tranquillus
Ginter, 2000
Classification: Elasmobranchii Phoebodontiformes Phoebodontidae
Reference of the original description
Late Famennian pelagic shark assemblages. Acta Geologica Polonica, 50(3), 369–386
Late Famennian pelagic shark assemblages. Acta Geologica Polonica, 50(3), 369–386
Synonyms / new combinations and misspellings
Thrinacodus cf. tranquillus
Thrinacodus cf. tranquillus
Description:
Citation: Thrinacodus tranquillus Ginter, 2000: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
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Description
Original diagnosis after Ginter, 2000 [3137]: The tooth crown is composed of three equal, leader, strongly recurved cusps, covered on both sides with gentle, subparallel cristae. The base is long (labio-lingually), very narrow, subcircular in vertical section close to the crown and flattened or concave in the lingual part; it is twisted, and it long axis is slightly curved in relation to the crown (with exception to few teeth probably of the symphysial row). The opening of the main basal canal is usually situated half-way along the base.
Original diagnosis after Ginter, 2000 [3137]: The tooth crown is composed of three equal, leader, strongly recurved cusps, covered on both sides with gentle, subparallel cristae. The base is long (labio-lingually), very narrow, subcircular in vertical section close to the crown and flattened or concave in the lingual part; it is twisted, and it long axis is slightly curved in relation to the crown (with exception to few teeth probably of the symphysial row). The opening of the main basal canal is usually situated half-way along the base.
References
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
Fish Assemblages from the Upper Devonian of the South Urals (Russia). Paleontological Journal, 58(Suppl 4), 358–390
DOI: 10.1134/S0031030124601737
Middle Palaeozoic chondrichthyans and the associated ichthyofauna from southern Poland: a review. Annales Societatis Geologorum Poloniae, 91(3), 253–286
DOI: 10.14241/asgp.2021.13
Late Devonian (Famennian) Chondrichthyes from Mexico. Journal of Vertebrate Paleontology, 39(6), Article e1764008
DOI: 10.1080/02724634.2019.1764008
Upper Devonian microvertebrates from the Canning Basin, Western Australia. Acta Geologica Polonica, 65(1), 69–100
Preliminary report on the occurrence of the ichthyoliths in the Upper Famennian and Lower Tournaisian of the Moravian Karst. Geologické výzkumy na Moravě a ve Slezsku, 20(1–2), 136–140
The Study of Chondrichtyan Micro remains in upper Famennian Geirud Formation, Central Alborz. Geoscience, 74, 85–90
The middle Paleozoic Selachian genus Thrinacodus. Journal of Vertebrate Paleontology, 30(6), 1666–1672
DOI: 10.1080/02724634.2010.520785
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
Famennian chondrichthyan remains from the Chahriseh section, central Iran. Acta Geologica Polonica, 59(2), 173–200
Famennian Chondrichthyan Microremains from Morocco and Sardinia. Journal of Paleontology, 82(5), 984–995
DOI: 10.1666/07-102.1
Famennian chondrichthyans from the shelves of North Gondwana. Acta Geologica Polonica, 52(2), 169–215
Late Famennian pelagic shark assemblages. Acta Geologica Polonica, 50(3), 369–386
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
Fish Assemblages from the Upper Devonian of the South Urals (Russia). Paleontological Journal, 58(Suppl 4), 358–390
DOI: 10.1134/S0031030124601737
Middle Palaeozoic chondrichthyans and the associated ichthyofauna from southern Poland: a review. Annales Societatis Geologorum Poloniae, 91(3), 253–286
DOI: 10.14241/asgp.2021.13
Late Devonian (Famennian) Chondrichthyes from Mexico. Journal of Vertebrate Paleontology, 39(6), Article e1764008
DOI: 10.1080/02724634.2019.1764008
Upper Devonian microvertebrates from the Canning Basin, Western Australia. Acta Geologica Polonica, 65(1), 69–100
Preliminary report on the occurrence of the ichthyoliths in the Upper Famennian and Lower Tournaisian of the Moravian Karst. Geologické výzkumy na Moravě a ve Slezsku, 20(1–2), 136–140
The Study of Chondrichtyan Micro remains in upper Famennian Geirud Formation, Central Alborz. Geoscience, 74, 85–90
The middle Paleozoic Selachian genus Thrinacodus. Journal of Vertebrate Paleontology, 30(6), 1666–1672
DOI: 10.1080/02724634.2010.520785
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.
Famennian chondrichthyan remains from the Chahriseh section, central Iran. Acta Geologica Polonica, 59(2), 173–200
Famennian Chondrichthyan Microremains from Morocco and Sardinia. Journal of Paleontology, 82(5), 984–995
DOI: 10.1666/07-102.1
Famennian chondrichthyans from the shelves of North Gondwana. Acta Geologica Polonica, 52(2), 169–215
Late Famennian pelagic shark assemblages. Acta Geologica Polonica, 50(3), 369–386
