Paraceraurus Explained

Paraceraurus is a genus of trilobites that lived in the Ordovician period (485.4 to 443.4 Ma). Its remains have been found in China, Estonia, Sweden and North America.^[1] These trilobites have a rounded and moderately convex cephalon. Glabella is convex or flattened, with a sub-rectangular outline. Thorax shows eleven segments.^[2]

Selected species

• Paraceraurus exsul
• Paraceraurus aculeatus
• Paraceraurus ingricus
• Paraceraurus gladiator
• Paraceraurus macrophthalmus
• Paraceraurus spinulosus

^[2]

References

• Trilobite: Eyewitness to Evolution by Richard Fortey
• Trilobites of the families Cheiruridae and Encrinuridae from Estonia.] Geoloogia Instituudi Uurimused [Trud Inst Geol Acad Sci Est SSR] Tallinn, 3 1958: 165–205, 210–212. [Zoological Record Volume 95]
• V. Klikushin, A. Evdokimov, A. Pilipyuk. Ordovician Trilobites of the St. Petersburg Region, Russia, 2009.

Notes and References

1. https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=21494 Paraceraurus in the Paleobiology Database
2. http://fossilstock.com/fossilshop/trilobites/category/97-paraceraurus Fossilstock