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Warrenella
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Reticularioidea
Family:
Reticulariidae
Formal Genus Name and Reference:
Warrenella Crickmay, 1953a, p. 596
Type Species:
W. eclectea, OD
Images
(Click to enlarge in a new window)
Fig. 1235, 2a-g. *W. eclectea, Frasnian, Alberta, Canada, a-e, dorsal, ventral, anterior, posterior, lateral views, X1.5 (Crickmay, 1953), f-g, ventral, posterior views of internal mold, X1.5 (new).
Synonyms
Minatothyris
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Pragian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
50
Beginning Date:
411.46
Ending Stage in Treatise Usage:
Upper Devonian (Frasnian)
Ending International Stage:
Frasnian
Fraction Up In Ending Stage:
100
Ending Date:
371.1
Description
Medium to large, elongate, low, curved, apsacline ventral interarea, apex of delthyrium with short deltidium, cardinal angles rounded, fold and sulcus poorly expressed but generally distinct, closely spaced growth lamellae with marginal spine bases, strong apical callus, closely spaced, subparallel dental plates and deeply impressed muscle field, ctenophoridium and highly variable crural plates. Lower Devonian (upper Pragian)-Upper Devonian (Frasnian). W. (Warrenella). Lateral plications lacking or incipient near commissure. Lower Devonian (upper Pragian)-Upper Devonian (Frasnian): cosmopolitan.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Reticularioidea
Family:
Reticulariidae
Formal Genus Name and Reference:
Warrenella Crickmay, 1953a, p. 596
Type Species:
W. eclectea, OD
Images
(Click to enlarge in a new window)
Fig. 1235, 2a-g. *W. eclectea, Frasnian, Alberta, Canada, a-e, dorsal, ventral, anterior, posterior, lateral views, X1.5 (Crickmay, 1953), f-g, ventral, posterior views of internal mold, X1.5 (new).
Synonyms
Minatothyris
Geographic Distribution
cosmopolitan
Age Range
Beginning Stage in Treatise Usage:
Lower Devonian (upper Pragian)
Beginning International Stage:
Pragian
Fraction Up In Beginning Stage:
50
Beginning Date:
411.46
Ending Stage in Treatise Usage:
Upper Devonian (Frasnian)
Ending International Stage:
Frasnian
Fraction Up In Ending Stage:
100
Ending Date:
371.1
Description
Medium to large, elongate, low, curved, apsacline ventral interarea, apex of delthyrium with short deltidium, cardinal angles rounded, fold and sulcus poorly expressed but generally distinct, closely spaced growth lamellae with marginal spine bases, strong apical callus, closely spaced, subparallel dental plates and deeply impressed muscle field, ctenophoridium and highly variable crural plates. Lower Devonian (upper Pragian)-Upper Devonian (Frasnian). W. (Warrenella). Lateral plications lacking or incipient near commissure. Lower Devonian (upper Pragian)-Upper Devonian (Frasnian): cosmopolitan.