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Coscinodiscus
Classification
Phylum:
Porifera
Class:
Demospongea
Order:
Tetralithistida
Superfamily:
Unknown
Family:
Cylindrophymatidae
Formal Genus Name and Reference:
Coscinodiscus SCHRAMMEN, 1937, p. 105
Type Species:
C. suevicus, OD
Images
(Click to enlarge in a new window)
Fig. 164, 5. *C. suevicus; desmas, X20 (Schrammen, 1937).
Synonyms
Geographic Distribution
Germany
Age Range
Beginning Stage in Treatise Usage:
Jurassic (Kimmeridgian)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
Jurassic (Kimmeridgian)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
100
Ending Date:
149.24
Description
Funnel to bowl shaped to platelike or flabellate, thick walled, exterior of skeletal framework with small ostia of short epirhyses and large, irregular apertures of uncertain character, paragastral surface with large, rounded postica, desmas didymoclones and some irregular variants; other spicules unknown.
References
Schrammen, Anton. 1937 [1936]. Die Kieselspongien des oberen Jura von Süddeutschland. B. Besonderer Teil. Palaeontographica (Abt. A) 85:1-114, pl. 1-17 (1127).
Museum or Author Information
Classification
Phylum:
Porifera
Class:
Demospongea
Order:
Tetralithistida
Superfamily:
Unknown
Family:
Cylindrophymatidae
Formal Genus Name and Reference:
Coscinodiscus SCHRAMMEN, 1937, p. 105
Type Species:
C. suevicus, OD
Images
(Click to enlarge in a new window)
Fig. 164, 5. *C. suevicus; desmas, X20 (Schrammen, 1937).
Synonyms
Geographic Distribution
Germany
Age Range
Beginning Stage in Treatise Usage:
Jurassic (Kimmeridgian)
Beginning International Stage:
Kimmeridgian
Fraction Up In Beginning Stage:
0
Beginning Date:
154.78
Ending Stage in Treatise Usage:
Jurassic (Kimmeridgian)
Ending International Stage:
Kimmeridgian
Fraction Up In Ending Stage:
100
Ending Date:
149.24
Description
Funnel to bowl shaped to platelike or flabellate, thick walled, exterior of skeletal framework with small ostia of short epirhyses and large, irregular apertures of uncertain character, paragastral surface with large, rounded postica, desmas didymoclones and some irregular variants; other spicules unknown.
References
Schrammen, Anton. 1937 [1936]. Die Kieselspongien des oberen Jura von Süddeutschland. B. Besonderer Teil. Palaeontographica (Abt. A) 85:1-114, pl. 1-17 (1127).