Diapsida

== Translingual == === Etymology === Ancient Greek δίς (dís, “twice”) + ἁψίς (hapsís, “arch, loop”) +‎ -ida === Proper noun === Diapsida A taxonomic subclass within the class Reptilia – dinosaurs, pterosaurs and modern crocodiles. ==== Hypernyms ==== (subclass): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum; Gnathostomata – infraphylum; Tetrapoda – superclass; Reptilia – class; Eureptilia, Romeriida – clades ==== Hyponyms ==== (subclass): Archosauromorpha, Lepidosauromorpha – infraclasses; †Ichthyosauria – extinct order === References === Diapsida on Wikipedia.Wikipedia Diapsida on Wikispecies.Wikispecies Category:Diapsida on Wikimedia Commons.Wikimedia Commons Diapsida at Integrated Taxonomic Information System. “Diapsida”, in Paleobiology Database, 2026