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Leptochondria
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Aviculopectinidae
Subfamily:
Aviculopectininae
Formal Genus Name and Reference:
Leptochondria BITTNER, 1891, p. 101
Type Species:
*Pecten (L.) aeolicus, M
Images
(Click to enlarge in a new window)
Fig. C61,1. L. tirolica (Bittner), U. Trias., S.Tyrol, 1 a, b, LV ext., RV ext., both X3 (58), Fig. C94,1. *L. aeolica (Bittner), Asia M., la-c, LV ext., RV ext., hinge, X1 (56)
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
L.Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
U.Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small, suborbicular or ovate, acline or slightly prosocline, LV moderately convex, with slightly protruding umbo, RV flat or almost so, beaks near middle of hinge margin, posterior wings and left anterior wing obtuse, indistinctly delimited, below right anterior auricle a deep narrow subauricular notch extending almost to beak, LV with radial riblets of at least 2 orders, new ones arising by intercalation, RV smooth or weakly ribbed, external ligamental area with obtusely triangular pit.
References
Bittner, Alexander, 1891, Triaspetrefakten aus Balia in Kleinasien: K. K. Geol. Reichsanst. Wien, Jahrb., v. 41, p. 97-116, pl. 1-3.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Pteriomorphia
Order:
Pterioida
Suborder:
Pteriina
Superfamily:
Pectinacea (scallops and relatives)
Family:
Aviculopectinidae
Subfamily:
Aviculopectininae
Formal Genus Name and Reference:
Leptochondria BITTNER, 1891, p. 101
Type Species:
*Pecten (L.) aeolicus, M
Images
(Click to enlarge in a new window)
Fig. C61,1. L. tirolica (Bittner), U. Trias., S.Tyrol, 1 a, b, LV ext., RV ext., both X3 (58), Fig. C94,1. *L. aeolica (Bittner), Asia M., la-c, LV ext., RV ext., hinge, X1 (56)
Synonyms
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
L.Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
U.Trias.
Ending International Stage:
Rhaetian
Fraction Up In Ending Stage:
100
Ending Date:
201.36
Description
Small, suborbicular or ovate, acline or slightly prosocline, LV moderately convex, with slightly protruding umbo, RV flat or almost so, beaks near middle of hinge margin, posterior wings and left anterior wing obtuse, indistinctly delimited, below right anterior auricle a deep narrow subauricular notch extending almost to beak, LV with radial riblets of at least 2 orders, new ones arising by intercalation, RV smooth or weakly ribbed, external ligamental area with obtusely triangular pit.
References
Bittner, Alexander, 1891, Triaspetrefakten aus Balia in Kleinasien: K. K. Geol. Reichsanst. Wien, Jahrb., v. 41, p. 97-116, pl. 1-3.