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Chlupacina
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Strophochonetidae
Formal Genus Name and Reference:
Chlupacina Havlíček & RACHEBOEUF, 1979, p. 86
Type Species:
C. longispina, OD
Images
(Click to enlarge in a new window)
Fig. 242, 4a-d. C. belairensis (Racheboeup), Emsian, southwestern Europe, $a$, ventral valve exterior, x5}, b$, dorsal valve interior, x5}, c$, detail of"
Synonyms
Geographic Distribution
Bohemia, Armorican Massif, Spain, Canadian Arctic Archipelago, Australia, ?China
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
Very small plano- to concavoconvex shell, radial ornamentation often restricted to periphery of valves, median enlarged costa well developed, two to three long spines on one side only, usually oblique in their proximal part, then becoming orthomorph vertical, dorsal valve interior without median septum, cardinal process short, wide, supported by narrow, rounded ridgelike inner socket ridges anteriorly divergent at about 145°, anterior margin of cardinal process, socket ridges almost vertical above valve floor, cardinal process pit variably developed, often longitudinally elongate, anderidia short, thin, isolated on valve floor, anteriorly divergent at 50°
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Strophochonetidae
Formal Genus Name and Reference:
Chlupacina Havlíček & RACHEBOEUF, 1979, p. 86
Type Species:
C. longispina, OD
Images
(Click to enlarge in a new window)
Fig. 242, 4a-d. C. belairensis (Racheboeup), Emsian, southwestern Europe, $a$, ventral valve exterior, x5}, b$, dorsal valve interior, x5}, c$, detail of"
Synonyms
Geographic Distribution
Bohemia, Armorican Massif, Spain, Canadian Arctic Archipelago, Australia, ?China
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
Very small plano- to concavoconvex shell, radial ornamentation often restricted to periphery of valves, median enlarged costa well developed, two to three long spines on one side only, usually oblique in their proximal part, then becoming orthomorph vertical, dorsal valve interior without median septum, cardinal process short, wide, supported by narrow, rounded ridgelike inner socket ridges anteriorly divergent at about 145°, anterior margin of cardinal process, socket ridges almost vertical above valve floor, cardinal process pit variably developed, often longitudinally elongate, anderidia short, thin, isolated on valve floor, anteriorly divergent at 50°