Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Adelograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Anisograptidae
Formal Genus Name and Reference:
Adelograptus BULMAN, 1941, p. 114
Type Species:
*Bryograptus? hunnebergensis Moberg, 1892b, p. 92, OD, $=$ Dichograptus? tenellus Linnarsson, 1871, p. 794, Maletz & ERDTMANN, 1987, p. 180
Images
(Click to enlarge in a new window)
Fig. 162,5a-b,d. A. tenellus (Linnarsson, 1871), 5a, neotype, SGU 4497a-b, scale bar, 5 mm (Maletz & Erdtmann, 1987, pl. 1A), 5b, SGU 4506, lectotype of *Bryograptus? bunnebergensis (selected herein), scale bar, 5 mm (Maletz & Erdtmann, 1987, p 188), 5d, SM A82770, Shineton Shale, Shropshire, UK, scale bar, 1 mm (Maletz, 1992, fig. 1F), ——Fig. 162,5c. A. messaoudi Legrand, 1964a, proximal end, obverse view showing sicular bitheca, scale bar, 1 mm (adapted from Legrand, 1964a, fig. 3a)
Synonyms
Clonograptus
Geographic Distribution
Algeria, ?Australia, China, Sweden, Norway, UK, Canada, USA, Argentina, Bolivia
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Adelograptus tenellus Biozone
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
481.96
Ending Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Hunnegraptus copiosus Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
477.08
Description
Biradiate anisograptid with horizontal to subhorizontal tubarium, distal dichotomies irregularly spaced, cortical overgrowth of proximal part of stipes in gerontic specimens, bithecae on alternate sides of stipes, slender, gradually widening thecae, commonly with short rutellum
References
Bulman, O. M. B. 1941. Some dichograptids of the Tremadocian and Lower Ordovician. Annals and Magazine of Natural History (series 11) 7(37):100121.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Anisograptidae
Formal Genus Name and Reference:
Adelograptus BULMAN, 1941, p. 114
Type Species:
*Bryograptus? hunnebergensis Moberg, 1892b, p. 92, OD, $=$ Dichograptus? tenellus Linnarsson, 1871, p. 794, Maletz & ERDTMANN, 1987, p. 180
Images
(Click to enlarge in a new window)
Fig. 162,5a-b,d. A. tenellus (Linnarsson, 1871), 5a, neotype, SGU 4497a-b, scale bar, 5 mm (Maletz & Erdtmann, 1987, pl. 1A), 5b, SGU 4506, lectotype of *Bryograptus? bunnebergensis (selected herein), scale bar, 5 mm (Maletz & Erdtmann, 1987, p 188), 5d, SM A82770, Shineton Shale, Shropshire, UK, scale bar, 1 mm (Maletz, 1992, fig. 1F), ——Fig. 162,5c. A. messaoudi Legrand, 1964a, proximal end, obverse view showing sicular bitheca, scale bar, 1 mm (adapted from Legrand, 1964a, fig. 3a)
Synonyms
Clonograptus
Geographic Distribution
Algeria, ?Australia, China, Sweden, Norway, UK, Canada, USA, Argentina, Bolivia
Age Range
Beginning Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Adelograptus tenellus Biozone
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
481.96
Ending Stage in Treatise Usage:
Lower Ordovician (upper Tremadocian, Hunnegraptus copiosus Biozone)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
477.08
Description
Biradiate anisograptid with horizontal to subhorizontal tubarium, distal dichotomies irregularly spaced, cortical overgrowth of proximal part of stipes in gerontic specimens, bithecae on alternate sides of stipes, slender, gradually widening thecae, commonly with short rutellum
References
Bulman, O. M. B. 1941. Some dichograptids of the Tremadocian and Lower Ordovician. Annals and Magazine of Natural History (series 11) 7(37):100121.