Chondrichthyes - Ctenacanthiformes - Ctenacanthidae
Alternative spelling: Acandylacanthus
Parent taxon: Ctenacanthidae according to R. Zangerl 1981
See also Hay 1902, Jordan 1963, Novack-Gottshall 2025 and Sepkoski 2002
Sister taxa: Anodontacanthus ruthenorum, Bythiacanthus, Cladodoides, Cladodus, Ctenacanthus, Glikmanius, Glymmatacanthus, Tamiobatis
Subtaxa: Acondylacanthus aequicostatus Acondylacanthus attenuatus Acondylacanthus browni Acondylacanthus colei Acondylacanthus distans Acondylacanthus gracilis Acondylacanthus gracillimus Acondylacanthus mudgianus Acondylacanthus nuperus Acondylacanthus rectus Acondylacanthus tenuistriatus
Type: Acondylacanthus gracilis
Distribution:
• Permian of United States (2: Wyoming collections)
• Carboniferous of the United Kingdom (2), United States (2: Arizona, Colorado)
• Devonian of United States (1: Michigan)
Total: 7 collections including 10 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.