Paraceraurus

Paraceraurus
Temporal range: Ordovician
Paraceraurus exsul
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: †Artiopoda
Class: †Trilobita
Order: †Phacopida
Family: †Cheiruridae
Genus: †
Männil, 1958 [1]

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]

Selected species

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

[3]

References

Wikimedia Commons has media related to Paraceraurus.
  1. ^ Organism Names
  2. ^ Paraceraurus in the Paleobiology Database
  3. ^ a b 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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