Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Paraspirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Paraspirifer WEDEKIND, 1926, p. 198
Type Species:
Spirifer cultrijugatus ROEMER, 1844, p. 70, OD
Images
(Click to enlarge in a new window)
Fig. 1215, 2a-b. * P. cultrijugatus (Roemer), Eifelian, Germany, holotype, ventral and posterior views, X1 (Solle, 1971).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Medium to large, dorsibiconvex, transverse, with acute to rounded cardinal angles, ventral interarea curved, apsacline, fold and sulcus smooth, angular, becoming carinate, flanks with numerous, simple or anteriorly bifurcating plications, dental plates mostly buried in umbonal callus, with large, deeply impressed, ventral diductor muscle field. Lower Devonian (Emsian)-Middle Devonian (Eifelian): cosmopolitan.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Paraspirifer WEDEKIND, 1926, p. 198
Type Species:
Spirifer cultrijugatus ROEMER, 1844, p. 70, OD
Images
(Click to enlarge in a new window)
Fig. 1215, 2a-b. * P. cultrijugatus (Roemer), Eifelian, Germany, holotype, ventral and posterior views, X1 (Solle, 1971).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Emsian)
Beginning International Stage:
Emsian
Fraction Up In Beginning Stage:
0
Beginning Date:
410.51
Ending Stage in Treatise Usage:
Middle Devonian (Eifelian)
Ending International Stage:
Eifelian
Fraction Up In Ending Stage:
100
Ending Date:
385.3
Description
Medium to large, dorsibiconvex, transverse, with acute to rounded cardinal angles, ventral interarea curved, apsacline, fold and sulcus smooth, angular, becoming carinate, flanks with numerous, simple or anteriorly bifurcating plications, dental plates mostly buried in umbonal callus, with large, deeply impressed, ventral diductor muscle field. Lower Devonian (Emsian)-Middle Devonian (Eifelian): cosmopolitan.