Acernaspis

Acernaspis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Phacopidae
Genus:	Acernaspis; Campbell, 1967
Species
	A. orestes Billings, 1860 type species = Phacops orestes, A. mimica, A. superciliexcelsis ;
Synonyms
	Eskaspis; Murphycops;

Acernaspis is an extinct genus of trilobite that is known from the Silurian. It contains two species, A. elliptifrons, and A. salmoensis. It is sometimes found preserved in burrows of various forms, sometimes in association with multiple moults, suggesting that it used tunnels as refuges whilst in its vulnerable moulting stage.^[2]

References

^ Sandford, Andrew C.; Holloway, David J. (2006). "Early Silurian phacopide trilobites from central Victoria, Australia" (PDF). Memoirs of the Museum of Victoria. 63 (2): 215–255.^{[permanent dead link]}
^ Chatterton, B. D. E.; Collins, D. H.; Ludvigsen, R. (2003). "Cryptic behaviour in trilobites: Cambrian and Silurian examples from Canada, and other related occurrences". In Lane, P. D; Siveter, D. J; Fortey, R. A (eds.). Trilobites and Their Relatives. Special Papers in Palaeontology. Vol. 70. The Palaeontological Association. pp. 157–173. ISBN 978-0-901702-81-4.

External links

Acernaspis at the Paleobiology Database

This Phacopida-related article is a stub. You can help Wikipedia by expanding it.

[1] Sandford, Andrew C.; Holloway, David J. (2006). "Early Silurian phacopide trilobites from central Victoria, Australia" (PDF). Memoirs of the Museum of Victoria. 63 (2): 215–255.^{[permanent dead link]}

[2] Chatterton, B. D. E.; Collins, D. H.; Ludvigsen, R. (2003). "Cryptic behaviour in trilobites: Cambrian and Silurian examples from Canada, and other related occurrences". In Lane, P. D; Siveter, D. J; Fortey, R. A (eds.). Trilobites and Their Relatives. Special Papers in Palaeontology. Vol. 70. The Palaeontological Association. pp. 157–173. ISBN 978-0-901702-81-4.

[1]

[2]