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