Anapsida

From Ancient Greek ἀν- (an-, “not”) + ἁψιδ (hapsid), root of ἁψίς (hapsís, “arch or loop”).

Anapsida

1. A taxonomic subclass within the class Reptilia – turtles, tortoises, terrapins, and extinct relatives.

• Some modern authors have removed order Testudines from this group.
• The group is also though not to be monophyletic.

• (subclass): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum; Gnathostomata – infraphylum; Tetrapoda – superclass; Reptilia – class

• (subclass): †Captorhinomorpha, †Mesosauria, †Procolophonia, Testudines – orders

• Testudinata

• Anapsida on Wikipedia.Wikipedia
• Anapsida on Wikispecies.Wikispecies
• Category:Anapsida on Wikimedia Commons.Wikimedia Commons
• Anapsida at Paleobiology Database