Paraceraurus

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.[2] These trilobites have a rounded and moderately convex cephalon. Glabella is convex or flattened, with a sub-rectangular outline. Thorax shows eleven segments.[3]

Paraceraurus
Temporal range: Ordovician
Paraceraurus exsul
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Phacopida
Suborder:
Cheirurina
Family:
Cheiruridae
Genus:
Paraceraurus

Männil, 1958 [1]

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

[3]

gollark: Hmm, "up 4 months", neat. Maybe I should check it some time this year.
gollark: I installed that web-based client thing, it should still be running in docker.
gollark: I used IRC a while ago. I wonder if my client thing is still running.
gollark: It's annoying, but... probably inevitable... that we're using Discord instead of some decentralized platform.
gollark: Yes, narrowly defined "good".

References
  1. Organism Names
  2. Paraceraurus in the Paleobiology Database
  3. Fossilstock
  • 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.


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