Herasmius

Herasmius; Temporal range: Middle Devonian, Eifelian PreꞒ Ꞓ O S D C P T J K Pg N
	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
Species
	Herasmius granulatus Verlag, 1978 (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

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

[Denison2-1] 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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