Olenellus gilberti, from Western Trilobites.

Belongs within: Trilobita.

Olenellus is a genus of trilobites known from the Lower Cambrian (Harrington et al. 1959).

Characters (from Harrington et al. 1959): Glabella long, with rounded frontal lobe. usually reaching anterior border furrow; palpebral lobes mostly long, terminating opposite occipital furrow or further back. Hypostoma without stalk.

<==Olenellus Hall 1861 [Paradoxidae] W77
    |--O. armatus P98
    |--O. asaphoides T10
    |--O. fremonti P98
    |--O. gilberti Meek in White 1874 W77
    |--O. hamoculus P98
    |--O. howelli Meek in White 1874 W77
    |--O. intermedius P98
    |--O. kjerulfi T10
    |--O. lapworthi P98
    |--O. mickwitzii T10
    |--O. pritchardi T10
    |--O. reticulatus P98
    |--O. robsonensis WB85
    |--O. thomsoni T10
    |--O. vermontana W77
    `--O. zoppii T10

*Type species of generic name indicated


Harrington, H. J., G. Henningsmoen, B. F. Howell, V. Jaanusson, C. Lochman-Balk, R. C. Moore, C. Poulsen, F. Rasetti, E. Richter, R. Richter, H. Schmidt, K. Sdzuy, W. Struve, C. J. Stubblefield, R. Tripp, J. M. Weller & H. B. Whittington. 1959. Trilobita. In: R. C. Moore (ed.) Treatise on Invertebrate Paleontology pt O. Arthropoda 1, pp. O38-O540. Geological Society of America and University of Kansas Press.

[P98] Prothero, D. R. 1998. Bringing Fossils to Life: An introduction to paleobiology. WCB McGraw-Hill: Boston.

[T10] Taylor, T. G. 1910. The Archaeocyathinae from the Cambrian of South Australia with an account of the morphology and affinities of the whole class. Memoirs of the Royal Society of South Australia 2 (2): 55-188.

[W77] White, C. A. 1877. Report upon the invertebrate fossils collected in portions of Nevada, Utah, Colorado, New Mexico, and Arizona, by parties of the expeditions of 1871, 1872, 1873, and 1874. U.S. Geographical Surveys West of the One Hundredth Meridian 4 (1): 1-219, pls 211-221.

[WB85] Whittington, H. B., & D. E. G. Briggs. 1985. The largest Cambrian animal, Anomalocaris, Burgess Shale, British Columbia. Philosophical Transactions of the Royal Society of London 309: 569-609.

No comments:

Post a Comment

Markup Key:
- <b>bold</b> = bold
- <i>italic</i> = italic
- <a href="http://www.fieldofscience.com/">FoS</a> = FoS