Lechriaspis

Lechriaspis; Temporal range: Early Devonian, Emsian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Infraphylum:	Agnatha
Class:	†Pteraspidomorphi
Subclass:	†Heterostraci
Order:	†Cyathaspidiformes
Family:	†
Genus:	†Lechriaspis; Elliott & Petriello, 2011
Type species
	†Lechriaspis patula; Elliott & Petriello, 2011

Lechriaspis is an extinct genus of heterostracan agnathan known from the Early Devonian of northern Utah, western United States.^[1]

Discovery[]

Lechriaspis is known only from the holotype specimen. It was collected from the of the of northern Utah, which dates to the Emsian stage of the late Early Devonian. The specimen shows evidence of puncture wounds indicating predation by a eurypterid. Lechriaspis and Poraspis thomasi represent the first true members of the Cyathaspidida to be described from the Devonian of the western United States.^[1]

Etymology[]

Lechriaspis was first named by David K. Elliott and Michael A. Petriello in 2011 and the type species is Lechriaspis patula.^[1]

References[]

^ ^a ^b ^c David K. Elliott and Michael A. Petriello (2011). "New poraspids (Agnatha, Heterostraci) from the Early Devonian of the western United States". Journal of Vertebrate Paleontology. 31 (3): 518–530. doi:10.1080/02724634.2011.557113. S2CID 130564395.

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[poraspids-1] David K. Elliott and Michael A. Petriello (2011). "New poraspids (Agnatha, Heterostraci) from the Early Devonian of the western United States". Journal of Vertebrate Paleontology. 31 (3): 518–530. doi:10.1080/02724634.2011.557113. S2CID 130564395.

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