Holoptychius

Holoptychius
Temporal range: Late Devonian-Mississippian
~
Fossil of H. quebecensis in the Field Museum of Natural History, Chicago
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
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') 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.

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