Temporal range:
Olenellus thompsoni.png
Olenellus thompsoni
Scientific classification e
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Redlichiida
Family: Olenellidae
Subfamily: Olenellinae
Genus: Olenellus
Billings, 1861
  • O. thompsoni (Hall, 1859) (Type)[1][2]
  • O. agellus Resser & Howell, 1938[1]
  • O. chiefensis Palmer, 1998[3]
  • O. clarki (Resser, 1928),[1] synonym Paedeumias clarki
  • O. crassimarginatus Walcott, 1910,[1] synonyms O. thompsoni crassimarginatus, O. wanneri, O. latilimbatus
  • O. fowleri Palmer, 1998[3]
  • O. getzi Dunbar, 1925,[1] synonyms O. alius, O. peculiaris
  • O. howelli Meek, 1874[3]
  • O. nevadensis (Walcott, 1910),[1] synonyms Paedeumias nevadensis, Callavia nevadensis
  • O. parvofrontatus Fritz, 1991[1]
  • O. puertoblancoensis Lochman, 1952[1]
  • O. robsonensis Burling, 1916,[1] synonym Paedeumias robsonensis
  • O. roddyi Resser & Howell, 1938,[1] synonyms O. similaris, O. nodosus, O. nitidus, O. jonasae, Paedeumias glabrum, P. yorkense, P. eboracense
  • O. romensis Resser & Howell, 1938,[1] synonym O. buttsi
  • O. terminatus Palmer, 1998[3]
  • O. transitans (Walcott, 1910),[1] synonyms O. brachycephalus, Paedeumias perkinsi

Olenellus is an extinct genus of redlichiid trilobites, with species of average size (about 5 centimetres or 2.0 inches long). It lived during the Botomian and Toyonian stages (Olenellus-zone), 522 to 510 million years ago, in what is currently North-America, part of the palaeocontinent Laurentia.[4]

Life reconstruction of Olenellus thompsoni
  1. ^ a b c d e f g h i j k l Lieberman, B.S. (1999). "Systematic Revision of the Olenelloidea (Trilobita, Cambrian)" (PDF). Bulletin of the Peabody Museum of Natural History. 45.
  2. ^ Cowie, J.; McNamara, K.J. (1978). "Olenellus (Trilobita) from the Lower Cambrian Strata of North-West Scotland" (PDF). Palaeontology. 21 (3): 615–634.
  3. ^ a b c d Palmer, A.R. (1998). "Terminal Early Cambrian Extinction of the Olenellina: Documentation from the Pioche Formation, Nevada". Journal of Paleontology. 72 (4): 650–672. doi:10.1017/S0022336000040373. JSTOR 1306693.
  4. ^ W. H. Fritz (1995). "Esmeraldina rowei and associated Lower Cambrian trilobites (1f fauna) at the base of Walcott's Waucoban Series, Southern Great Basin, U.S.A.". Journal of Paleontology. 69 (4): 708–723. doi:10.1017/S002233600003523X. JSTOR 1306305.

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