The turtles and tortoises: reptiles enclosed within a bony shell fused to the spine and ribs, into which the head and limbs can be withdrawn in most species. Testudines is among the most ancient surviving reptile body plans, essentially unchanged in basic structure for over two hundred million years.
Facts
Taxonomic Rank Scientific Name Member Count Band Era First Appeared Disputed
Member Species/Taxa CountApproximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized. Classification
Living or Extinct Connections
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ223044, descriptionView the Source 2. Catalogue of Life
3. Catalogue of Life (ChecklistBank): Taxon metrics for Testudines
Catalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCountQuote, Taxon metrics, speciesExtantCount
"speciesExtantCount": 370
4. Paleobiology Database: Taxon record for Testudines
Paleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)
"taxon_name": "Testudines" ... "firstapp_max_ma": 233.6 ... "early_interval": "Carnian"
Wikidata: Testudines
Wikidata Q223044, class allow-list match (w-wdresolver-0926)View the Source Testudines (Wikipedia)
In Group: Archelosaur Reptile Orders, Wikipedia article leadView the Source Reader Challenges (0)
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