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Ottoia
Classification
Phylum:
Sipunculoida
Class:
None
Order:
Sipunculoida - Uncertain Order
Family:
Ottoiidae
Formal Genus Name and Reference:
Ottoia WALCOTT, 1911
Type Species:
*O. prolifica
Images
(Click to enlarge in a new window)
Fig. 107,1. *O. prolifica, Burgess Sh., Can.(B.C.), \times 1 (154)
Synonyms
Geographic Distribution
W.N. Am.
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
Body elongate, tapering at each end, with many segments, minute hooks arranged in 5 or 6 concentric rings at anterior end and concentric row of stronger hooks at posterior end
References
Walcott, C. D., 1911, Cambrian geology and paleontology II, no. 5, Middle Cambrian annelids: Smithsonian Misc. Coll., v. 57, no. 5, p. 109-144, pl. 18-23.
Museum or Author Information
Classification
Phylum:
Sipunculoida
Class:
None
Order:
Sipunculoida - Uncertain Order
Family:
Ottoiidae
Formal Genus Name and Reference:
Ottoia WALCOTT, 1911
Type Species:
*O. prolifica
Images
(Click to enlarge in a new window)
Fig. 107,1. *O. prolifica, Burgess Sh., Can.(B.C.), \times 1 (154)
Synonyms
Geographic Distribution
W.N. Am.
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
Body elongate, tapering at each end, with many segments, minute hooks arranged in 5 or 6 concentric rings at anterior end and concentric row of stronger hooks at posterior end
References
Walcott, C. D., 1911, Cambrian geology and paleontology II, no. 5, Middle Cambrian annelids: Smithsonian Misc. Coll., v. 57, no. 5, p. 109-144, pl. 18-23.