Holoptychiidae

Holoptychiidae; Temporal range: Middle Devonian-Mississippian; ~
	Holoptychius sp.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Class:	Porolepimorpha
Order:	†Porolepiformes
Family:	†Holoptychiidae; Owen, 1860
Genera
	†Glyptolepis; †Holoptychius (type); †Laccognathus;

Holoptychiidae is an extinct family of lobe-finned fishes which lived during the Devonian and Carboniferous periods. At least one genus, Laccognathus, is thought to have been amphibious.

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