Avonacanthus

Avonacanthus
Temporal range: lower Carboniferous
Scientific classification
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Avonacanthus

Maisley, 2010

Avonacanthus is an extinct genus of cartilaginous fish from the lower Carboniferous. The name is derived from the type locality of Avon Gorge, near Bristol, England. It contains a single species, A. brevis, which was originally regarded as a species of Ctenacanthus.[1] It is currently known only from fin spines. It is probably a cladistically basal Heslerodid.[2]

  1. ^ AGASSIZ, L. (1836) Recherches sur les poissons fossiles, 7th livraison (June–July 1836). Petitpierre et Prince (text) and H. Nicolet (plates), Neuchâtel, vol. 3: pl. 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 41, 42, 43, 44.
  2. ^ Maisey, J. G. (2010). Heslerodidae (Chondrichthyes, Elasmobranchii), a new family of Paleozoic phalacanthous sharks. Kirtlandia, 57, 13-21.