Lagynocystis

Phylum:Echinodermata

Class:†Stylophora

Order:†Mitrata

Family:†Lagynocystidae
Jaekel, 1918^[2]

Lagynocystis Temporal range: Cambrian, Furongian–Late Ordovician (upper Sandbian)[1] PreꞒ Ꞓ O S D C P T J K Pg N
Lagynocystis pyramidalis convex (left) and flat (right) surfaces
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	†Stylophora
Order:	†Mitrata
Family:	†Lagynocystidae Jaekel, 1918[2]
Genus:	†Lagynocystis Jaekel, 1918
Species:	†L. pyramidalis
Binomial name
†Lagynocystis pyramidalis (Barrande, 1887) Jaekel, 1918
Synonyms
†Anomalocystites pyramidalis Barrande, 1887

Lagynocystis is a genus of mitrate stylophoran known from the Furongian epoch of the Cambrian to the upper Sandbian age of the Ordovician, with specimens described from China, Czech Republic, France, the Iberian Peninsula, Morocco, Russia, and Wales.^[1] It contains a single species, Lagynocystis pyramidalis, and is the only member of the family Lagynocystidae.^[3] The genus bore internal bars morphologically similar to those found in modern cephalocordates and enteropneus, possibly suggesting their homology.^[4]