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Undulograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Neograptina
Family:
Dicranograptidae
Formal Genus Name and Reference:
Undulograptus BОЧС̌ЕК, 1973, p. 121
Type Species:
*Pseudoclimacograptus formosus MU & LEE, 1958, p. 406, OD
Images
(Click to enlarge in a new window)
Fig. 248,4a-b. * U. formosus (Mu \& Lee), 4a, NIGP 9771b, specimen on slab with holotype, reverse view, 4 b, holotype, NIGP 9771, obverse view, scale bars, 1 mm (Mitchell, 1992, fig. 2c, 2e)., ——Fig. 248, 4c-d. U. camptochilus (Skevington, 1965), 4c, NRM Cn 59945, isolated specimen, scale bar, 1 mm (Mitchell, 1992, fig. 2a), 4d, NRM Cn 59944, note unusual apertural flanges, scale bar, 1 mm (Bulman, 1936a, pl. 3,30).
Synonyms
Climacograptus, Pseudoclimacograptus
Geographic Distribution
Czech Republic, Sweden, Germany, Turkey, China
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Darriwilian, Levisograptus dentatus Biozone)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
0
Beginning Date:
469.42
Ending Stage in Treatise Usage:
Middle Ordovician (Darriwilian, Levisograptus dentatus Biozone)
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
0
Ending Date:
458.18
Description
Neograptines with slender tubarium, wide, rounded proximal end lacking spines except for commonly elongated virgella, geniculum rounded, proximal development of pattern C astogeny, median septum strongly undulate, thecae long, with double sigmoidal shape, without intrathecal folds, and with straight horizontal apertures
References
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Neograptina
Family:
Dicranograptidae
Formal Genus Name and Reference:
Undulograptus BОЧС̌ЕК, 1973, p. 121
Type Species:
*Pseudoclimacograptus formosus MU & LEE, 1958, p. 406, OD
Images
(Click to enlarge in a new window)
Fig. 248,4a-b. * U. formosus (Mu \& Lee), 4a, NIGP 9771b, specimen on slab with holotype, reverse view, 4 b, holotype, NIGP 9771, obverse view, scale bars, 1 mm (Mitchell, 1992, fig. 2c, 2e)., ——Fig. 248, 4c-d. U. camptochilus (Skevington, 1965), 4c, NRM Cn 59945, isolated specimen, scale bar, 1 mm (Mitchell, 1992, fig. 2a), 4d, NRM Cn 59944, note unusual apertural flanges, scale bar, 1 mm (Bulman, 1936a, pl. 3,30).
Synonyms
Climacograptus, Pseudoclimacograptus
Geographic Distribution
Czech Republic, Sweden, Germany, Turkey, China
Age Range
Beginning Stage in Treatise Usage:
Middle Ordovician (Darriwilian, Levisograptus dentatus Biozone)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
0
Beginning Date:
469.42
Ending Stage in Treatise Usage:
Middle Ordovician (Darriwilian, Levisograptus dentatus Biozone)
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
0
Ending Date:
458.18
Description
Neograptines with slender tubarium, wide, rounded proximal end lacking spines except for commonly elongated virgella, geniculum rounded, proximal development of pattern C astogeny, median septum strongly undulate, thecae long, with double sigmoidal shape, without intrathecal folds, and with straight horizontal apertures