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Blastochaetetes
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Tabulata
Order:
Chaetetida
Suborder:
Post-Paleozoic Chaetetida
Family:
Chaetetidae (post-Paleozoic)
Formal Genus Name and Reference:
Blastochaetetes DIETRICH, 1919, p. 211
Type Species:
Chaetetes capilliformis Michelin of Dietrich, orig. usage? DIETRICH based his genus on specimens from the Oxfordian of Chatel-Censoir, Yonne, France, that he referred to MICHELIN'S species; DIETRICH'S types have been interpreted by FISCHER (1970) as a new species of Bauneia, and if DIETRICH'S description of his specimens may be taken as his designation of them as types, then Blastochaetetes would become a senior synonym of Bauneia PETERHANS, 1927. However, FISCHER recognized
Chaetetes capilliformis MICHELIN, 1844, p. 112 (+in MICHELIN Coll., MN, Paris, Oxford., Saint-Mihiel, Meuse, France) as type specimen. MICHELIN'S specimen, judging from FISCHER'S figures of it, may well be stromatoporoid, though no undoubted astrorhizal tubuli are seen; there seem to be vertical pillars of clinogonal fibers, connected by curtains as in stromatoporoids. CmF et al. (1973) referred to Blastochaetetes a species to which they ascribed astrorhizae. However, I have not studied the material myself, and I append a translation of FISCHER'S diagnosis
Images
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Synonyms
Geographic Distribution
Asia Minor, Jur. (Bathon.)-U.Cret., Eu. (France-Italy)
Age Range
Beginning Stage in Treatise Usage:
Trias.(Carn.)
Beginning International Stage:
Carnian
Fraction Up In Beginning Stage:
0
Beginning Date:
237
Ending Stage in Treatise Usage:
Trias.(Carn.)
Ending International Stage:
Carnian
Fraction Up In Ending Stage:
100
Ending Date:
227.3
Description
Chaetetidae showing discontinuities in the walls, of which the zones of growth are more or less clear and of which the tubes, which may communicate with one another, multiply indifferently by fissiparous division and by intraparietal gemmation (transl. from French)
References
Dietrich, W. O., 1919, Ueber sogenannte Tabulaten des lura und der Kreide, insbesondere die Gattung Acantharia Qu.: Centralbl. Mineral. Geol. Paläontol., p. 208-218, text-fig. 1, 2.
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Tabulata
Order:
Chaetetida
Suborder:
Post-Paleozoic Chaetetida
Family:
Chaetetidae (post-Paleozoic)
Formal Genus Name and Reference:
Blastochaetetes DIETRICH, 1919, p. 211
Type Species:
Chaetetes capilliformis Michelin of Dietrich, orig. usage? DIETRICH based his genus on specimens from the Oxfordian of Chatel-Censoir, Yonne, France, that he referred to MICHELIN'S species; DIETRICH'S types have been interpreted by FISCHER (1970) as a new species of Bauneia, and if DIETRICH'S description of his specimens may be taken as his designation of them as types, then Blastochaetetes would become a senior synonym of Bauneia PETERHANS, 1927. However, FISCHER recognized
Chaetetes capilliformis MICHELIN, 1844, p. 112 (+in MICHELIN Coll., MN, Paris, Oxford., Saint-Mihiel, Meuse, France) as type specimen. MICHELIN'S specimen, judging from FISCHER'S figures of it, may well be stromatoporoid, though no undoubted astrorhizal tubuli are seen; there seem to be vertical pillars of clinogonal fibers, connected by curtains as in stromatoporoids. CmF et al. (1973) referred to Blastochaetetes a species to which they ascribed astrorhizae. However, I have not studied the material myself, and I append a translation of FISCHER'S diagnosis
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
Asia Minor, Jur. (Bathon.)-U.Cret., Eu. (France-Italy)
Age Range
Beginning Stage in Treatise Usage:
Trias.(Carn.)
Beginning International Stage:
Carnian
Fraction Up In Beginning Stage:
0
Beginning Date:
237
Ending Stage in Treatise Usage:
Trias.(Carn.)
Ending International Stage:
Carnian
Fraction Up In Ending Stage:
100
Ending Date:
227.3
Description
Chaetetidae showing discontinuities in the walls, of which the zones of growth are more or less clear and of which the tubes, which may communicate with one another, multiply indifferently by fissiparous division and by intraparietal gemmation (transl. from French)
References
Dietrich, W. O., 1919, Ueber sogenannte Tabulaten des lura und der Kreide, insbesondere die Gattung Acantharia Qu.: Centralbl. Mineral. Geol. Paläontol., p. 208-218, text-fig. 1, 2.