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Fardenia
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Orthotetida
Superfamily:
Chilidiopsoidea
Family:
Chilidiopsidae
Formal Genus Name and Reference:
Fardenia LAMONT, 1935, p. 310
Type Species:
F. scotica, OD
Images
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Fig. 486a-f. $* F$. scotica, Ashgill, Girvan, Scotland, $a, b$, exterior mold of dorsal valve, latex replica of same specimen, x3.5$, $c$, interior mold of dorsal valve, $d$, latex replica of same specimen, X3.75, $e, f$, interior mold of ventral valve, latex replica of same specimen, x3.5$ (new).’
Synonyms
Saughina
Geographic Distribution
Europe
Age Range
Beginning Stage in Treatise Usage:
Upper Ordovician (Caradoc)
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
lower Silurian (Llandovery)
Ending International Stage:
Telychian
Fraction Up In Ending Stage:
100
Ending Date:
432.93
Description
Subquadrate, biconvex, relatively coarsely costellate mainly by branching, pedicle foramen usually persisting in adult shell, pseudodeltidium short, chilidium small, varying from pair of plates to complete cover, socket ridges recurved, muscle scars faint