Raymondinacea References

Raymondinidae; Temporal range: Middle and Upper Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Ptychopariida (?)
Superfamily:	Raymondinacea; Clark, 1924
Family:	Raymondinidae; Clark, 1924
subfamilies
	Raymondininae; Cedariniinae; Llanoaspidinae;

Raymondinidae are the only family in the trilobite superfamily Raymondinacea, which lived during the Middle and Upper Cambrian.

Taxonomy

The Raymondinidae consists of three subfamilies, but is assumed to be polyphyletic.^[1]

Raymondina, Amquia, Exigua ( = Brassicicephalus), Llanoaspidella, Paracedaria

Cedaria, Cedarina

Llanoaspis, Arcuolimbus, Genevievella, Metisaspis

^ Moore, R.C. (1959). Arthropoda I - Arthropoda General Features, Proarthropoda, Euarthropoda General Features, Trilobitomorpha. Treatise on Invertebrate Paleontology. Vol. Part O. Boulder, Colorado/Lawrence, Kansas: Geological Society of America/University of Kansas Press. pp. O298–O301. ISBN 0-8137-3015-5.

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