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Euryspirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Euryspirifer Wedekind, 1926, p. 202
Type Species:
Terebratulites paradoxus von SCHLOTHEIM, 1813, p. 28, OD
Images
(Click to enlarge in a new window)
Fig. 1215, 3a-d. * E. paradoxus (von Schlotheim), Emsian, Belgium, a- b, casts of dorsal interior, ventral exterior, X1, c, microornament, X6.5, d, cast of ventral interior, X1 (Vandercammen, 1963).
Synonyms
Rhenospirifer
Geographic Distribution
Europe, eastern USA (Maine), northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Pragian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
0
Beginning Date:
412.4
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Large, biconvex, strongly transverse, with acute cardinal angles, ventral interarea curved, low, apsacline, fold and sulcus smooth, or with median rib in sulcus, flanks with numerous simple plications, microornament of fine capillae and fila, becoming fimbriate, ventral diductor muscle field variably impressed in callus, crural plates lacking
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Hysterolitidae
Formal Genus Name and Reference:
Euryspirifer Wedekind, 1926, p. 202
Type Species:
Terebratulites paradoxus von SCHLOTHEIM, 1813, p. 28, OD
Images
(Click to enlarge in a new window)
Fig. 1215, 3a-d. * E. paradoxus (von Schlotheim), Emsian, Belgium, a- b, casts of dorsal interior, ventral exterior, X1, c, microornament, X6.5, d, cast of ventral interior, X1 (Vandercammen, 1963).
Synonyms
Rhenospirifer
Geographic Distribution
Europe, eastern USA (Maine), northern Africa
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (Pragian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
0
Beginning Date:
412.4
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Large, biconvex, strongly transverse, with acute cardinal angles, ventral interarea curved, low, apsacline, fold and sulcus smooth, or with median rib in sulcus, flanks with numerous simple plications, microornament of fine capillae and fila, becoming fimbriate, ventral diductor muscle field variably impressed in callus, crural plates lacking