Rhachiosteus

Rhachiosteus pterygiatus is an extinct brachythoracid arthrodire placoderm from the Late Devonian of Germany. It is known only from a single specimen, which may be a larval or juvenile form, as the skull of said specimen is only 19 millimetres long.[1]

Rhachiosteus
Temporal range: Givetian-Frasnian
Artist's reconstruction (with Trematosteus in the background)
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Subphylum:
Vertebrata
Class:
Placodermi
Order:
Arthrodira
Suborder:
Brachythoraci
Infraorder:
Coccosteina
Superfamily:
Dinichthyloidea
Family:
Rhachiosteidae
Genus:
Rhachiosteus
Species:
R. pterygiatus
Binomial name
Rhachiosteus pterygiatus
Gross, 1938
Synonyms
  • "Rachiosteus" pterygiatus

References
  1. Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology'. Stuttgart New York: Gustav Fischer Verlag. p. 128. ISBN 9780895740274.


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