Acastava

Acastava; Temporal range: Pragian to Emsian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Suborder:	Phacopina
Superfamily:	Acastoidea
Family:	Acastidae
Genus:	Acastava; Richter & Richter, 1954
Species
	A. atavus (W.E. Schmidt, 1907) (type) synonym Cryphaeus atavus; A. schmidti Richter, 1909; A. lerougei Van Viersen, 2013;

Acastava is an extinct genus of trilobite in the order Phacopida, from the upper Pragian (A. atavus) to Emsian period (both other species listed) of the Devonian.

^ "Phacopida Fact Sheet". www.trilobites.info. Archived from the original on 28 August 2008. Retrieved 2008-09-07.

[1] "Phacopida Fact Sheet". www.trilobites.info. Archived from the original on 28 August 2008. Retrieved 2008-09-07.

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