Temporal range: Late Devonian: Famennian, 371.1–359.3 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Placodermi
Order:
†Arthrodira
Suborder:
†Brachythoraci
Family:
†Selenosteidae
Genus:
†Heintzichthys Whitley 1933
Species
Heintzichthys gouldii (Newberry, 1885) (type)
Synonyms
Dinichthys corrugatus (Newberry, 1893)
Dinichthys gracilis (Claypole, 1897)
Stenognathus corrugatus (Newberry, 1889)
Heintzichthys is an extinct monospecific genus of arthrodire placoderm that lived what is now Europe and North America during the Famennian stage of the Late Devonian period. The type specimen was discovered in the Cleveland Shale near Cleveland, Ohio, in the United States.[1]
^Hansen, Michael C. (2005). "Phylum Chordata—Vertebrate Fossils". In Feldmann, Rodney M.; Hackathorn, Merrianne (eds.). Fossils of Ohio. ODNR Bulletin 70. Columbus, Ohio: Ohio Department of Natural Resources. p. 290.
cladogram below shows the phylogeny of Heintzichthys: According to a 2022 Jobbins et al. study, Heintzichthys was found to be a sister taxa to Gorgonichthys...
family, though closely related to arthrodires like Gorgonichthys and Heintzichthys. The cladogram below from the study of Zhu & Zhu (2013) shows the placement...
Jobbins et al. study, Gymnotrachelus was found to be an outgroup to Heintzichthys and Gorgonichthys. Denison, Robert (1978). Handbook of Paleoichthyology...
Jobbins et al. study, Gorgonichthys was found to be more related to Heintzichthys than Gymnotrachelus, potentially making Gorgonichthys a member of Selenosteidae...
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