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Bryograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Subclass:
Graptolithina
Order:
Graptoloidea
Suborder:
Graptodendroidina
Family:
Anisograptidae
Formal Genus Name and Reference:
Bryograptus LAPWORTH, 1880a, p. 164
Type Species:
*B. kjerulfi, SD GURLEY, 1896, p. 64
Images
(Click to enlarge in a new window)
Fig. 162,4. *B. kjerulfi, lectotype, PMO 71284, Vaekkero, Oslo Region, Norway, scale bar, 1 mm (Bulman, 1971b, p. 363, fig. 1a).
Synonyms
Geographic Distribution
UK, Norway, Sweden, Argentina, Bolivia
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Bryograptus ramosus Biozone)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
50
Beginning Date:
481.96
Ending Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Bryograptus ramosus Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
100
Ending Date:
477.08
Description
Declined to pendent anisograptid with triradiate proximal development and unlimited branching capacity, bithecae alternate along the stipes, sicula elongated, commonly with long and thickened nema
References
Lapworth, Charles. 1880a. On new British graptolites. Annals and Magazine of Natural History (series 5) 5:149-177.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Subclass:
Graptolithina
Order:
Graptoloidea
Suborder:
Graptodendroidina
Family:
Anisograptidae
Formal Genus Name and Reference:
Bryograptus LAPWORTH, 1880a, p. 164
Type Species:
*B. kjerulfi, SD GURLEY, 1896, p. 64
Images
(Click to enlarge in a new window)
Fig. 162,4. *B. kjerulfi, lectotype, PMO 71284, Vaekkero, Oslo Region, Norway, scale bar, 1 mm (Bulman, 1971b, p. 363, fig. 1a).
Synonyms
Geographic Distribution
UK, Norway, Sweden, Argentina, Bolivia
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Bryograptus ramosus Biozone)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
50
Beginning Date:
481.96
Ending Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Bryograptus ramosus Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
100
Ending Date:
477.08
Description
Declined to pendent anisograptid with triradiate proximal development and unlimited branching capacity, bithecae alternate along the stipes, sicula elongated, commonly with long and thickened nema
References
Lapworth, Charles. 1880a. On new British graptolites. Annals and Magazine of Natural History (series 5) 5:149-177.