Herasmius

Herasmius
Temporal range: Middle Devonian, Eifelian
Life reconstruction of Herasmius granulatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Class: Placodermi
Order: Arthrodira
Suborder: Brachythoraci
not Gross, 1932
Family: Heterosteidae
Genus: Herasmius
Verlag, 1978[1]
Species
  • Herasmius granulatus Verlag, 1978[1] (Type)

Herasmius is an extinct genus of heterosteid placoderm known from remains discovered in Norway.

Description

This genus is known from freshwater deposits of the early Eifelian-aged Verdalen member of the Stjørdalen formation in the Wood Bay series, Spitzbergen, Norway. In addition to being smaller than Heterosteus, Herasmius differs by having a comparatively broader, shorter skull.[1]

References

  1. 1 2 3 Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology. Stuttgart New York: Gustav Fischer Verlag. p. 66. ISBN 978-0-89574-027-4.
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