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Palaeobolus
Classification
Phylum:
Brachiopoda
Class:
Lingulata
Order:
Lingulida
Superfamily:
Linguloidea
Family:
Obolidae
Formal Genus Name and Reference:
Palaeobolus MATTHEW, 1899, p. 201
Type Species:
P. bretonensis, OD
Images
(Click to enlarge in a new window)
Fig. 19, 2a-c. * P. bretonensis, Bourinot Group, Cape Breton, Canada, $a$, ventral valve exterior, USNM 51664a, X2.2, b, partly exfoliated dorsal valve, USNM 51664b, x2.1$, $c$, partly exfoliated ventral valve, ROM CM (A), X2.2 (new)."
Synonyms
Geographic Distribution
Canada (Nova Scotia), Kazakhstan (Malyi Karatau Range), China, ?Korea
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (Botomian)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
75
Beginning Date:
516.13
Ending Stage in Treatise Usage:
Middle Cambrian (Amgaian)
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
25
Ending Date:
499.63
Description
Externally similar to Notiobolus, but with more strongly developed concentric ornamentation, both valves lacking lateral ridges, both valves with almost parallel, submedian vascula lateralia
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Lingulata
Order:
Lingulida
Superfamily:
Linguloidea
Family:
Obolidae
Formal Genus Name and Reference:
Palaeobolus MATTHEW, 1899, p. 201
Type Species:
P. bretonensis, OD
Images
(Click to enlarge in a new window)
Fig. 19, 2a-c. * P. bretonensis, Bourinot Group, Cape Breton, Canada, $a$, ventral valve exterior, USNM 51664a, X2.2, b, partly exfoliated dorsal valve, USNM 51664b, x2.1$, $c$, partly exfoliated ventral valve, ROM CM (A), X2.2 (new)."
Synonyms
Geographic Distribution
Canada (Nova Scotia), Kazakhstan (Malyi Karatau Range), China, ?Korea
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (Botomian)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
75
Beginning Date:
516.13
Ending Stage in Treatise Usage:
Middle Cambrian (Amgaian)
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
25
Ending Date:
499.63
Description
Externally similar to Notiobolus, but with more strongly developed concentric ornamentation, both valves lacking lateral ridges, both valves with almost parallel, submedian vascula lateralia