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Anisograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Anisograptidae
Formal Genus Name and Reference:
Anisograptus RUEDEMANN, 1937, p. 61
Type Species:
*A. matanensis, OD
Images
(Click to enlarge in a new window)
Fig. 161,5a.*A. matanensis, holotype, NYSM 6841, Matane, Quebec, Canada, scale bar, 5 mm (Ruedemann, 1937, fig. 6), ——Fig. 161,5b. A. flexuosus BulMan, 1950, GSC 9861, Matane, Quebec, Canada, scale bar, 10 mm (Bulman, 1950, fig. 6a)
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (lower Tremadocian, Anisograptus matanensis Biozone)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Lower Ordovician (lower Tremadocian, Rhabdinopora flabelliformis anglica Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
481.96
Description
Triradiate anisograptid with horizontal to subhorizontal tubarium, distal dichotomies irregularly spaced
References
Ruedemann, Rudolf. 1937. A new North American graptolite faunule. American Journal of Science 233:57-62.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Anisograptidae
Formal Genus Name and Reference:
Anisograptus RUEDEMANN, 1937, p. 61
Type Species:
*A. matanensis, OD
Images
(Click to enlarge in a new window)
Fig. 161,5a.*A. matanensis, holotype, NYSM 6841, Matane, Quebec, Canada, scale bar, 5 mm (Ruedemann, 1937, fig. 6), ——Fig. 161,5b. A. flexuosus BulMan, 1950, GSC 9861, Matane, Quebec, Canada, scale bar, 10 mm (Bulman, 1950, fig. 6a)
Synonyms
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (lower Tremadocian, Anisograptus matanensis Biozone)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Lower Ordovician (lower Tremadocian, Rhabdinopora flabelliformis anglica Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
481.96
Description
Triradiate anisograptid with horizontal to subhorizontal tubarium, distal dichotomies irregularly spaced
References
Ruedemann, Rudolf. 1937. A new North American graptolite faunule. American Journal of Science 233:57-62.