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Prolaria
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Anomalodesmata
Order:
Pholadomyoida
Superfamily:
Pholadomyacea
Family:
Burmesiidae
Formal Genus Name and Reference:
Prolaria HEALEY, 1908, p. 60
Type Species:
* P. sollasi, M
Images
(Click to enlarge in a new window)
Fig. F17,2a,b. *P. sollasi, Burma, 2a, part of RV ext., showing posterior projection, *, more complete but crushed RV, both * (Healey, 1908), Fig. F17,2c,d. P. armenica Robinson, Armenia, 2c,d, RV ext. and dorsal view of both valves, post. extremity broken away, * (Kiparisova, 1947)
Synonyms
Geographic Distribution
Asia(Burma-Armenia-Indon.)
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Presumed posterior end of shell forming rostrumlike projection truncated at its extremity and situated in relatively dorsal position with deep sinus below it, sharp sigmoidally curved carina runs in each valve from umbo to lower corner of this projection, predominant radial ribbing confined to posteromedian part of surface, strong, irregular concentric folds with subordinate radial threads cover anterior half of surface, while posterior projection is unornamented except for growth lines.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Anomalodesmata
Order:
Pholadomyoida
Superfamily:
Pholadomyacea
Family:
Burmesiidae
Formal Genus Name and Reference:
Prolaria HEALEY, 1908, p. 60
Type Species:
* P. sollasi, M
Images
(Click to enlarge in a new window)
Fig. F17,2a,b. *P. sollasi, Burma, 2a, part of RV ext., showing posterior projection, *, more complete but crushed RV, both * (Healey, 1908), Fig. F17,2c,d. P. armenica Robinson, Armenia, 2c,d, RV ext. and dorsal view of both valves, post. extremity broken away, * (Kiparisova, 1947)
Synonyms
Geographic Distribution
Asia(Burma-Armenia-Indon.)
Age Range
Beginning Stage in Treatise Usage:
U.Trias.(Rhaet.)
Beginning International Stage:
Rhaetian
Fraction Up In Beginning Stage:
0
Beginning Date:
205.74
Ending Stage in Treatise Usage:
U.Trias.(Rhaet.)
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Presumed posterior end of shell forming rostrumlike projection truncated at its extremity and situated in relatively dorsal position with deep sinus below it, sharp sigmoidally curved carina runs in each valve from umbo to lower corner of this projection, predominant radial ribbing confined to posteromedian part of surface, strong, irregular concentric folds with subordinate radial threads cover anterior half of surface, while posterior projection is unornamented except for growth lines.