Holoptychius

== Translingual == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) === Proper noun === †Holoptychius m A taxonomic genus within the family Holoptychiidae – not extant since the Devonian period. 1896. Charles Lyell and John Wesley Judd. The Student's Lyell: A Manual of Elementary Geology., page 389 ...fish have been found abundantly, and have been referred to Holoptychius nobilissimus... === References === Holoptychius on Wikipedia.Wikipedia Holoptychius on Wikispecies.Wikispecies Category:Holoptychius on Wikimedia Commons.Wikimedia Commons