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[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]

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gollark: I'm surprised I have so many extra packages I guess.

gollark: Huh, osmarksvoidlinux™ occupies 2.4GB?

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References

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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[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.