Chondrichthyes - Helodontiformes - Helodontidae
Full reference: L. Agassiz. 1838. Recherches Sur Les Poissons Fossiles. Tome III (11me livraison) 73-140
Parent taxon: Helodontidae according to J. S. Nelson 2006
See also Hay 1902, Jordan 1963, Sepkoski 2002 and Woodward 1889
Sister taxa: none
Subtaxa: Helodus angulatus Helodus biformis Helodus carbonarius Helodus coniculus Helodus consolidatus Helodus crenulatus Helodus denshumani Helodus denticulatus Helodus didymus Helodus elytra Helodus gibberulus Helodus gibbus Helodus incisus Helodus laevis Helodus limax Helodus mammillaris Helodus planus Helodus politus Helodus rudis Helodus rugosus Helodus simplex Helodus subpolitus Helodus subteres Helodus sulcatus Helodus undulatus Helodus wortheni
Type: Helodus simplex
Ecology: nektobenthic carnivore
Distribution:
• Permian of Australia (1 collection), Greenland (1), Lithuania (1), United States (6: Oklahoma, Wyoming)
• Carboniferous of Canada (1: Alberta), the United Kingdom (5), United States (3: Illinois, Indiana, Nebraska)
Total: 18 collections including 23 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.