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Terrakea
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Linoproductoidea
Family:
Linoproductidae
Formal Genus Name and Reference:
Terrakea Booker, 1930, p. 66
Type Species:
Productus brachythaerus Morris in de Strezelecki, 1845, p. 284, non G. B. Sowerby, 1844, p. 158, SD MAXWELL, 1956, p. 333
Images
(Click to enlarge in a new window)
Fig. 372, 2a-d. *T$. brachythaerum (Morris), upper Marine Series, New South Wales, $a$, ventral valve internal mold viewed
Synonyms
Saetosina
Geographic Distribution
eastern Australia, New Zealand, Russian Arctic
Age Range
Beginning Stage in Treatise Usage:
Lower Permian
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
lower Upper Permian
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Medium size, gently concavoconvex profile, moderate to deep corpus, ribbing on both valves, ventrally with swollen elongate spine bases with semirecumbent spines, spines on dorsal valve mainly anteriorly, dorsal lateral ridges slightly divergent from hinge, median ridge commonly weakly divided posteriorly.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Linoproductoidea
Family:
Linoproductidae
Formal Genus Name and Reference:
Terrakea Booker, 1930, p. 66
Type Species:
Productus brachythaerus Morris in de Strezelecki, 1845, p. 284, non G. B. Sowerby, 1844, p. 158, SD MAXWELL, 1956, p. 333
Images
(Click to enlarge in a new window)
Fig. 372, 2a-d. *T$. brachythaerum (Morris), upper Marine Series, New South Wales, $a$, ventral valve internal mold viewed
Synonyms
Saetosina
Geographic Distribution
eastern Australia, New Zealand, Russian Arctic
Age Range
Beginning Stage in Treatise Usage:
Lower Permian
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
lower Upper Permian
Ending International Stage:
Kungurian
Fraction Up In Ending Stage:
100
Ending Date:
274.37
Description
Medium size, gently concavoconvex profile, moderate to deep corpus, ribbing on both valves, ventrally with swollen elongate spine bases with semirecumbent spines, spines on dorsal valve mainly anteriorly, dorsal lateral ridges slightly divergent from hinge, median ridge commonly weakly divided posteriorly.