Denaea cf. williamsi
Ginter & Hansen, 2010
Classification: Holocephali Symmoriiformes Falcatidae
Reference of the original description
Teeth of the cladodont shark Denaea from the Carboniferous of central North America. In D. Nowakowski(ed.) Morphology and Systematics of Fossil Vertebrates, 29–44. Wydawnictwo DN, Wrocław
Teeth of the cladodont shark Denaea from the Carboniferous of central North America. In D. Nowakowski(ed.) Morphology and Systematics of Fossil Vertebrates, 29–44. Wydawnictwo DN, Wrocław
Types
Denaea cf. williamsi
Denaea cf. williamsi
Description:
Citation: Denaea cf. williamsi Ginter & Hansen, 2010: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
Description
Original diagnosis after Ginter & Hansen, 2010 [26471]: A species of Denaea characterized by teeth with the following combination of features: in seven-cuspid teeth the outermost pair of the lateral cusps is the highest; the central cusp is slightly compressed labio-lingually; the cristae on the labial side of the central cusp diverge laterally at the base and then corresponding pairs join before reaching the tip; the cristae on the lingual face of the cusps converge at various heights; the outermost cusps are strongly divergent; the base is short labio-lingually and has a slightly convex labial margin; the base is provided with a distinct button, at the lingual rim; there are only two large openings of the main basal canal, one in the centre of the aboral surface and another on the lingual rim.
Original diagnosis after Ginter & Hansen, 2010 [26471]: A species of Denaea characterized by teeth with the following combination of features: in seven-cuspid teeth the outermost pair of the lateral cusps is the highest; the central cusp is slightly compressed labio-lingually; the cristae on the labial side of the central cusp diverge laterally at the base and then corresponding pairs join before reaching the tip; the cristae on the lingual face of the cusps converge at various heights; the outermost cusps are strongly divergent; the base is short labio-lingually and has a slightly convex labial margin; the base is provided with a distinct button, at the lingual rim; there are only two large openings of the main basal canal, one in the centre of the aboral surface and another on the lingual rim.
References
New fish assemblages from the Carboniferous deep-water sections of South China and Western Kazakhstan. Journal of Paleontology, 99(4), 958–974
DOI: 10.1017/jpa.2025.10134
Chondrichthyans from the early/late Carboniferous boundary beds of the Gissar Mountains, Uzbekistan. New Mexico Museum of Natural History and Science, Bulletin, 60, 143–151
New fish assemblages from the Carboniferous deep-water sections of South China and Western Kazakhstan. Journal of Paleontology, 99(4), 958–974
DOI: 10.1017/jpa.2025.10134
Chondrichthyans from the early/late Carboniferous boundary beds of the Gissar Mountains, Uzbekistan. New Mexico Museum of Natural History and Science, Bulletin, 60, 143–151
