Raymondinidae Explained

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]

• Raymondininae (= Pilgrimiidae)

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

• Cedariniinae

Cedaria, Cedarina

• Llanoaspidinae

Llanoaspis, Arcuolimbus, Genevievella, Metisaspis

Notes and References

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