Holoptychius

Holoptychius
Temporal range: Late Devonian-Mississippian
~383–318 Ma
Fossil of H. quebecensis in the Field Museum of Natural History, Chicago
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Class: †Porolepimorpha
Order: †Porolepiformes
Family: †Holoptychiidae
Genus: †Holoptychius
Agassiz 1839
Type species
Holoptychius nobilissimus
Species
  • H. americanus
  • H. andersoni
  • H. flemingi
  • H. giganteus
  • H. halli
  • H. hopkinsii
  • H. nobilissimus
  • H. quebecensis

Holoptychius (from Greek: όλος holos, 'whole' and Greek: πτυχή ptyche 'fold')[1] is an extinct genus of porolepiform lobe-finned fish from the Middle Devonian to Carboniferous (Mississippian) periods. It is known from fossils worldwide. The genus was first described by Louis Agassiz in 1839.[2]

  1. ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 78. Retrieved 30 December 2021.
  2. ^ Cite error: The named reference Fossiilid was invoked but never defined (see the help page).