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Haydenella
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Haydenella REED, 1944, p. 78
Type Species:
Productus kiangsiensis KAYSER, 1883, p. 185, OD
Images
(Click to enlarge in a new window)
Fig. 280, 3a-e. $* H$. kiangsiensis (KAYSER), $a, b$, ventral valve exterior, lateral view of shell showing flank spines, Permian, Jiangxi, X1, $c-e$, ventral, dorsal, lateral views of shell, middle Productus Limestone, Salt Range, Pakistan, X1 (Muir-Wood & Cooper, 1960).’
Synonyms
Striatospica
Geographic Distribution
China, Asia, Transcaucasia
Age Range
Beginning Stage in Treatise Usage:
Upper Lower Permian (Roadian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Upper Permian (Tatarian)
Ending International Stage:
Wuchiapingian
Fraction Up In Ending Stage:
40
Ending Date:
257.43
Description
Smaller medium-sized corpus with short simple trails, broad outline, short ginglymus common, ribbing weak, absent at umbos, rugae only on ears, spines separate corpus from posterior ear regions, thin spines scattered on ventral corpus, ventral diductor scars prominent, cardinal process dorsally trifid, lateral ridges weak, no marginal ridges
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Haydenella REED, 1944, p. 78
Type Species:
Productus kiangsiensis KAYSER, 1883, p. 185, OD
Images
(Click to enlarge in a new window)
Fig. 280, 3a-e. $* H$. kiangsiensis (KAYSER), $a, b$, ventral valve exterior, lateral view of shell showing flank spines, Permian, Jiangxi, X1, $c-e$, ventral, dorsal, lateral views of shell, middle Productus Limestone, Salt Range, Pakistan, X1 (Muir-Wood & Cooper, 1960).’
Synonyms
Striatospica
Geographic Distribution
China, Asia, Transcaucasia
Age Range
Beginning Stage in Treatise Usage:
Upper Lower Permian (Roadian)
Beginning International Stage:
Roadian
Fraction Up In Beginning Stage:
0
Beginning Date:
274.37
Ending Stage in Treatise Usage:
Upper Permian (Tatarian)
Ending International Stage:
Wuchiapingian
Fraction Up In Ending Stage:
40
Ending Date:
257.43
Description
Smaller medium-sized corpus with short simple trails, broad outline, short ginglymus common, ribbing weak, absent at umbos, rugae only on ears, spines separate corpus from posterior ear regions, thin spines scattered on ventral corpus, ventral diductor scars prominent, cardinal process dorsally trifid, lateral ridges weak, no marginal ridges