Gymnotrachelus

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Gymnotrachelus
Temporal range: Late Famennian[1]
Gymnotrachelus hydei.jpg
Artist's reconstruction
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Placodermi
Order: Arthrodira
Suborder: Brachythoraci
Infraorder: Coccosteina
Superfamily: Dinichthyloidea
Family: Selenosteidae
Genus: Gymnotrachelus
Species: G. hydei
Binomial name
Gymnotrachelus hydei
Dunkel & Bungart, 1939

Gymnotrachelus hydei is a large selenosteid arthrodire placoderm known from the Late Famennian Cleveland Shales of Ohio.[2] It was originally reconstructed as physically resembling Selenosteus, with slightly smaller orbits (i.e., having a broad, box-like head). Later specimens led to a reappraisal, and now G. hydei is thought to have a more gar-like or barracuda-like build.[3]

References[edit]

  1. ^ Denison, Robert (1978). Handbook of Paleoichthyology, Volume 2, Placodermi. New York: Gustav Fischer Verlage. p. 98. ISBN 9780895740274. 
  2. ^ Denison, Robert (1978). Handbook of Paleoichthyology, Volume 2, Placodermi. New York: Gustav Fischer Verlage. p. 96. ISBN 9780895740274. 
  3. ^ Carr, Robert (1994). "A redescription of Gymnotrachelus hydei (Placodermi : Arthrodira) from the Cleveland Shale (Famennian) of north2 ern Ohio , U. S. A". Kirtlandia (48): 3–21.