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Luanquella
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Chonetidae
Formal Genus Name and Reference:
Luanquella Garcia-Alcalde & RACHEBOEUF, 1978, p. 847
Type Species:
L. cantabriensis, OD
Images
(Click to enlarge in a new window)
Fig. 257, 3a-d. *L. cantabriensis, Emsian, Cantabrian Mountains, Spain, $a-c$, ventral valve, exterior, profile, interior, $d$, dorsal valve interior, x1.5$ (Garcia-Alcalde & Racheboeuf, 1978).
Synonyms
Dagnachonetes (Luanquella)
Geographic Distribution
France, Spain
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:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Differs from Dagnachonetes by its radial ornamentation with costellae anteriorly widening, or not, crossed by few perceptible concentric fila, dorsal interarea always hypercline instead of catacline, inner socket ridges narrower, anteriorly less divergent.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Chonetoidea
Family:
Chonetidae
Formal Genus Name and Reference:
Luanquella Garcia-Alcalde & RACHEBOEUF, 1978, p. 847
Type Species:
L. cantabriensis, OD
Images
(Click to enlarge in a new window)
Fig. 257, 3a-d. *L. cantabriensis, Emsian, Cantabrian Mountains, Spain, $a-c$, ventral valve, exterior, profile, interior, $d$, dorsal valve interior, x1.5$ (Garcia-Alcalde & Racheboeuf, 1978).
Synonyms
Dagnachonetes (Luanquella)
Geographic Distribution
France, Spain
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:
Lower Devonian (Emsian)
Ending International Stage:
Emsian
Fraction Up In Ending Stage:
100
Ending Date:
394.3
Description
Differs from Dagnachonetes by its radial ornamentation with costellae anteriorly widening, or not, crossed by few perceptible concentric fila, dorsal interarea always hypercline instead of catacline, inner socket ridges narrower, anteriorly less divergent.