Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Climacograptus
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Climacograptidae
Formal Genus Name and Reference:
Climacograptus HALL, 1865, p. 111
Type Species:
*Graptolithus bicornis HALL, 1847, p. 268, OD
Images
(Click to enlarge in a new window)
Fig. 239,1a-d. *C. bicornis (HAll), 1 a, lectotype, AMNH 1030a, Austin Glen Greywacke, left bank of Normans Kill, Kenwood, New York, USA (Riva, 1974a, pl. 1,1), 1b, topotype, AMNH 29386, small specimen in obverse view (Riva, 1974a, fig. 1a), 1 c, topotype, AMNH 29390, proximal end with membranes (Riva, 1976, fig. 5f), 1d, NMV P63487, showing torsion of tubarium, Warbisco Shale, east Gippsland, Victoria, Australia (VandenBerg, 1990, fig. 3a). Scale bars, 1 mm, Fig. 239, 1e. Climacograptus hastatus (T. S. Hall, 1902), lectotype, AMF46104, Dicellograptus ornatus Biozone, Stockyard Flat Creek, New South Wales, Australia, scale bar, 1 mm (Riva \& Ketner, 1989, fig. 9a)
Synonyms
Mendograptus, Euclimacograptus, Climacograptus
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Upper Ordovician (Sandbian, Nemagraptus gracilis Biozone)
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
Upper Ordovician (Katian, Paraorthograptus pacificus Biozone)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
0
Ending Date:
445.21
Description
Climacograptids with pattern D proximal astogeny, thecae sharply geniculate, with straight supragenicular walls, simple deep semi-circular thecal excavations, and short thecal overlap, complete median septum weakly undulose to straight, subapertural to mesial spines on first pair of thecae, proximal membranes and parasiculae in mature specimens
References
Hall, James. 1865. Figures and descriptions of Canadian organic remains. Decade II, Graptolites of the Quebec Group. Geological Survey of Canada. Dawson Brothers. Montreal. 154 p. 21 pl.
Museum or Author Information
Classification
Phylum:
Hemichordata
Class:
Pterobranchia
Order:
Graptoloidea
Superfamily:
Unknown
Family:
Climacograptidae
Formal Genus Name and Reference:
Climacograptus HALL, 1865, p. 111
Type Species:
*Graptolithus bicornis HALL, 1847, p. 268, OD
Images
(Click to enlarge in a new window)
Fig. 239,1a-d. *C. bicornis (HAll), 1 a, lectotype, AMNH 1030a, Austin Glen Greywacke, left bank of Normans Kill, Kenwood, New York, USA (Riva, 1974a, pl. 1,1), 1b, topotype, AMNH 29386, small specimen in obverse view (Riva, 1974a, fig. 1a), 1 c, topotype, AMNH 29390, proximal end with membranes (Riva, 1976, fig. 5f), 1d, NMV P63487, showing torsion of tubarium, Warbisco Shale, east Gippsland, Victoria, Australia (VandenBerg, 1990, fig. 3a). Scale bars, 1 mm, Fig. 239, 1e. Climacograptus hastatus (T. S. Hall, 1902), lectotype, AMF46104, Dicellograptus ornatus Biozone, Stockyard Flat Creek, New South Wales, Australia, scale bar, 1 mm (Riva \& Ketner, 1989, fig. 9a)
Synonyms
Mendograptus, Euclimacograptus, Climacograptus
Geographic Distribution
worldwide
Age Range
Beginning Stage in Treatise Usage:
Upper Ordovician (Sandbian, Nemagraptus gracilis Biozone)
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
Upper Ordovician (Katian, Paraorthograptus pacificus Biozone)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
0
Ending Date:
445.21
Description
Climacograptids with pattern D proximal astogeny, thecae sharply geniculate, with straight supragenicular walls, simple deep semi-circular thecal excavations, and short thecal overlap, complete median septum weakly undulose to straight, subapertural to mesial spines on first pair of thecae, proximal membranes and parasiculae in mature specimens
References
Hall, James. 1865. Figures and descriptions of Canadian organic remains. Decade II, Graptolites of the Quebec Group. Geological Survey of Canada. Dawson Brothers. Montreal. 154 p. 21 pl.