Moythomasia

Moythomasia
Temporal range:
†Moythomasia nitida Gross 1953 from the Devonian (Givetian) of Bergisch-Gladbach, Germany.
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Family: †Moythomasiidae
Kazantseva, 1971
Genus: †Moythomasia
Gross, 1950 non Whitley, 1951
Species
  • M. devonica (Clarke, 1885)
  • M. durgaringa Gardiner & Bartram, 1977
  • M. lebedevi Plax, Bakaev & Naugolnykh, 2025
  • M. lineata Choo, 2015
  • M. nitida Gross, 1953
  • M. perforata (Gross, 1942)
Synonyms
  • Aldingeria Gross, 1942 non Moy-Thomas, 1942

Moythomasia (named for James Alan Moy-Thomas) is an extinct genus of early ray-finned fish from the Devonian period of Europe and Australia.

Moythomasia was a small freshwater fish, 9 centimetres (3.5 in) long. It had relatively large eyes, presumably to find prey in murky water. Its body was covered in specialized ganoid scales; the upper side of each scale sported a small pin that perfectly fit into the hollow lower side of the next scale. This allowed the fish to be both armored and flexible.

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