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Stereolasma
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Stereolasmatidae
Formal Genus Name and Reference:
Stereolasma SIMPSON, 1900, p. 205
Type Species:
Streptelasma rectum Hall, 1876, explanation to pl. 19 (part), OD, syntypes 4940/1, 2, AMNH, New York, and 3740/1, NYSM, Albany, see STUMM, 1965, p. 15
Images
(Click to enlarge in a new window)
Fig. 202,2a,b. *S. rectum (Hall), Hamilton Sh., W. N.Y., a, b, transv., long. secs., enl. (Simpson, 1900).
Synonyms
Stereoelasma, Buschophyllum, Buschphyllum
Geographic Distribution
N.Am.(N.Y.-Ind.-Ky.)-S.Am.(Venez.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Small, ceratoid, erect or slightly curved, major septa thick, long, extending to axis to form axial structure that does not project into calice, minor septa contratingent, Km long, remainder short, cardinal fossula narrowing adaxially and extending into axial structure, septa without flanges, tabulae tall, flat-topped domes, no dissepiments. [see STUMM & WATKINS, 1961,
p. 445].
References
Simpson, G. B., 1900, Preliminary descriptions of new genera of Palaeozoic rugose corals: N.Y. State Mus., Bull., v. 8, no. 39, p. 199-222, textfig. 1-45.
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Stereolasmatidae
Formal Genus Name and Reference:
Stereolasma SIMPSON, 1900, p. 205
Type Species:
Streptelasma rectum Hall, 1876, explanation to pl. 19 (part), OD, syntypes 4940/1, 2, AMNH, New York, and 3740/1, NYSM, Albany, see STUMM, 1965, p. 15
Images
(Click to enlarge in a new window)
Fig. 202,2a,b. *S. rectum (Hall), Hamilton Sh., W. N.Y., a, b, transv., long. secs., enl. (Simpson, 1900).
Synonyms
Stereoelasma, Buschophyllum, Buschphyllum
Geographic Distribution
N.Am.(N.Y.-Ind.-Ky.)-S.Am.(Venez.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
M.Dev.
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Small, ceratoid, erect or slightly curved, major septa thick, long, extending to axis to form axial structure that does not project into calice, minor septa contratingent, Km long, remainder short, cardinal fossula narrowing adaxially and extending into axial structure, septa without flanges, tabulae tall, flat-topped domes, no dissepiments. [see STUMM & WATKINS, 1961,
p. 445].
References
Simpson, G. B., 1900, Preliminary descriptions of new genera of Palaeozoic rugose corals: N.Y. State Mus., Bull., v. 8, no. 39, p. 199-222, textfig. 1-45.