Strophomenata

Strophomenata; Temporal range: Cambrian Stage 4-Triassic,; 516-205 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Strophomenid brachiopod with encrusting cornulitid worm tube (Upper Ordovician, SE Indiana).
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Brachiopoda
Subphylum:	Rhynchonelliformea
Class:	†Strophomenata; Williams 1996
Orders
	†Billingsellida; †Orthotetida; †Productida; †Strophomenida;

Strophomenata is an extinct class of brachiopods in the subphylum Rhynchonelliformea.

They originated in the Cambrian period, hugely diversified during the Ordovician, and faced near extinction from the Permian-Triassic extinction. Only a few lingered around in the Triassic until eventually going extinct.^[2] They were an exceptionally diverse group of brachiopods, and within the group the Strophomenids of the early Paleozoic and Productids of the late Paleozoic hugely contributed to the immense diversity.

^ Paleobiology Database
^ Carlson, Sandra J.; Leighton, Lindsey R. (2001). "The Phylogeny and Classification of Rhynchonelliformea". The Paleontological Society Papers. 7: 27–52. doi:10.1017/S1089332600000887. ISSN 1089-3326.

[1] Paleobiology Database

[:0-2] Carlson, Sandra J.; Leighton, Lindsey R. (2001). "The Phylogeny and Classification of Rhynchonelliformea". The Paleontological Society Papers. 7: 27–52. doi:10.1017/S1089332600000887. ISSN 1089-3326.

[1]

[2]