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Howellella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Delthyrididae
Formal Genus Name and Reference:
Howellella Kozlowski, 1946, p. 295, nom. nov. pro Crispella Kozlowski, 1929, p. 189, non GRAY, 1870, p. 25
Type Species:
Terebratula crispus von Hisinger, 1826, pl. 7, 4, OD, non Anomia crispa Linnaeus, 1758, p. 702, =Delthyris elegans MUIR-WOOD, 1925, p. 90
Images
(Click to enlarge in a new window)
Fig. 1211,3a–b. *H. (H.) cortazari C ARLS , Spain; ventral and dorsal molds, ×2 (Carls, 1969).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (upper Llandovery)
Beginning International Stage:
Telychian
Fraction Up In Beginning Stage:
0
Beginning Date:
438.59
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Small to medium size, biconvex, transversely oval, ventral interarea curved, apsacline, fold and sulcus smooth, flanks with strong, simple plications, growth lamellae closely spaced, dental plates and crural plates present
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Delthyriodoidea
Family:
Delthyrididae
Formal Genus Name and Reference:
Howellella Kozlowski, 1946, p. 295, nom. nov. pro Crispella Kozlowski, 1929, p. 189, non GRAY, 1870, p. 25
Type Species:
Terebratula crispus von Hisinger, 1826, pl. 7, 4, OD, non Anomia crispa Linnaeus, 1758, p. 702, =Delthyris elegans MUIR-WOOD, 1925, p. 90
Images
(Click to enlarge in a new window)
Fig. 1211,3a–b. *H. (H.) cortazari C ARLS , Spain; ventral and dorsal molds, ×2 (Carls, 1969).
Synonyms
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Silurian (upper Llandovery)
Beginning International Stage:
Telychian
Fraction Up In Beginning Stage:
0
Beginning Date:
438.59
Ending Stage in Treatise Usage:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Small to medium size, biconvex, transversely oval, ventral interarea curved, apsacline, fold and sulcus smooth, flanks with strong, simple plications, growth lamellae closely spaced, dental plates and crural plates present