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Tuzoia
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Malacostraca
Subclass:
Phyllocarida
Order:
Phyllocarida - Uncertain Order and Family
Formal Genus Name and Reference:
Tuzoia WALCOTT, 1912
Type Species:
*T. retitera, OD
Images
(Click to enlarge in a new window)
Fig. 152,6. T. burgessensis RESSER, M.Cam. (Burgess Sh.), B.C.; lat. view of LV (paratype) (reconstr.), X 0.5 (Rolfe, n).
Synonyms
Puzoia, Tusoia
Geographic Distribution
W.Can.-China
Age Range
Beginning Stage in Treatise Usage:
L.Cam.
Beginning International Stage:
Fortunian
Fraction Up In Beginning Stage:
0
Beginning Date:
538.8
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
Carapace with hinge line, valves subelliptical, carapace horn slightly produced; usually reticulate, prominent lateral ridge carinate, with smaller reticulae than on main area of valves; spines and spinules projecting from entire margin except anterior, and may occur on lateral ridge. [Type of Tuzoiidae RAYMOND, 1935 (=Isoxyidae BROOKS &; CASTER, 1956).]
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Malacostraca
Subclass:
Phyllocarida
Order:
Phyllocarida - Uncertain Order and Family
Formal Genus Name and Reference:
Tuzoia WALCOTT, 1912
Type Species:
*T. retitera, OD
Images
(Click to enlarge in a new window)
Fig. 152,6. T. burgessensis RESSER, M.Cam. (Burgess Sh.), B.C.; lat. view of LV (paratype) (reconstr.), X 0.5 (Rolfe, n).
Synonyms
Puzoia, Tusoia
Geographic Distribution
W.Can.-China
Age Range
Beginning Stage in Treatise Usage:
L.Cam.
Beginning International Stage:
Fortunian
Fraction Up In Beginning Stage:
0
Beginning Date:
538.8
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
Carapace with hinge line, valves subelliptical, carapace horn slightly produced; usually reticulate, prominent lateral ridge carinate, with smaller reticulae than on main area of valves; spines and spinules projecting from entire margin except anterior, and may occur on lateral ridge. [Type of Tuzoiidae RAYMOND, 1935 (=Isoxyidae BROOKS &; CASTER, 1956).]