Helodus Agassiz 1838 (chimaera)

Chondrichthyes - Helodontiformes - Helodontidae

Full reference: L. Agassiz. 1838. Recherches Sur Les Poissons Fossiles. Tome III (livr. 11). Imprimérie de Petitpierre, Neuchatel 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 turgidus Helodus undulatus Helodus wortheni

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Type: Helodus simplex

Ecology: nektobenthic carnivore

Distribution:

• Permian of Australia (1 collection), Greenland (1), United States (5: Wyoming)

• Pennsylvanian of the United Kingdom (1)

• Chesterian of Canada (1: Alberta)

• Carboniferous of the United Kingdom (3), United States (1: Nebraska)

• Mississippian of the United Kingdom (1), United States (1: Indiana)

Total: 15 collections including 21 occurrences

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Specimen images are retrieved through the ePANDDA API.


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