Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Glyptomena
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Glyptomenidae
Formal Genus Name and Reference:
Glyptomena COOPER, 1956, p. 881
Type Species:
G. sculpturata, OD
Images
(Click to enlarge in a new window)
Fig. 156, 3a-c. *G. sculpturata, Chatham Hill Formation, Llandeilo, Sharon Springs, Burkes Garden Quadrangle, Virginia, $a, b$, exterior, interior views of ventral valve, USNM 117856a, X3, clorsal interior, USNM 117856b, X3 (Cooper, 1956).
Synonyms
Geographic Distribution
North America, Scotland, Kazakhstan, China
Age Range
Beginning Stage in Treatise Usage:
Ordovician (Llandeilo)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
Ordovician (Caradoc)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
66.7
Ending Date:
447.72
Description
Profile gently concavoconvex, ornament unequally parvicostellate, small pseudodeltidium, short dental plates, poorly defined small subcircular ventral muscle field open anteriorly, widely divergent, prominent socket ridges, notothyrial platform weak, dorsal muscle field poorly impressed, with usually absent but sometimes sporadic, faint transmuscle septa, faint dorsal central median septum variably developed.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Strophomenida
Superfamily:
Strophomenoidea
Family:
Glyptomenidae
Formal Genus Name and Reference:
Glyptomena COOPER, 1956, p. 881
Type Species:
G. sculpturata, OD
Images
(Click to enlarge in a new window)
Fig. 156, 3a-c. *G. sculpturata, Chatham Hill Formation, Llandeilo, Sharon Springs, Burkes Garden Quadrangle, Virginia, $a, b$, exterior, interior views of ventral valve, USNM 117856a, X3, clorsal interior, USNM 117856b, X3 (Cooper, 1956).
Synonyms
Geographic Distribution
North America, Scotland, Kazakhstan, China
Age Range
Beginning Stage in Treatise Usage:
Ordovician (Llandeilo)
Beginning International Stage:
Darriwilian
Fraction Up In Beginning Stage:
56.9
Beginning Date:
463.02
Ending Stage in Treatise Usage:
Ordovician (Caradoc)
Ending International Stage:
Katian
Fraction Up In Ending Stage:
66.7
Ending Date:
447.72
Description
Profile gently concavoconvex, ornament unequally parvicostellate, small pseudodeltidium, short dental plates, poorly defined small subcircular ventral muscle field open anteriorly, widely divergent, prominent socket ridges, notothyrial platform weak, dorsal muscle field poorly impressed, with usually absent but sometimes sporadic, faint transmuscle septa, faint dorsal central median septum variably developed.