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Stewartophyllum
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Stereolasmatidae
Formal Genus Name and Reference:
Stewartophyllum BUSCH, 1941, p. 393
Type Species:
Amplexus intermittens HALL, 1876, explanation to pl. 32, fig. 8-13, OD, syntypes, 4971/1-2, AMNH, New York
Images
(Click to enlarge in a new window)
Fig. 202,3a,b. *S. intermittens (Hall), syntypes, Hamilton Gr., W. N.Y., a, b, ext. views, X1.0 (Hall, 1876).
Synonyms
Geographic Distribution
N. Am.(N.Y.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(Givet.)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
M.Dev.(Givet.)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Solitary, subcylindrical to ceratoid, with irregular flangelike expansions, calice relatively flat, major septa thick, extending almost to axis, their ends in contact about irregular narrow axial space in early stage, but withdrawing somewhat in late stages, cardinal fossula weakly to moderately developed, cardinal septum shortened in mature stages, minor septa very short, no dissepiments, tabulae complete or incomplete, relatively flattopped axially, their peripheral edges may be deflected upward or downward [see STUMM & WATKINS, 1961, p. 447].
References
Museum or Author Information
Classification
Phylum:
Cnidaria
Class:
Anthozoa
Subclass:
Rugosa
Order:
Stauriida
Suborder:
Stereolasmatina
Family:
Stereolasmatidae
Formal Genus Name and Reference:
Stewartophyllum BUSCH, 1941, p. 393
Type Species:
Amplexus intermittens HALL, 1876, explanation to pl. 32, fig. 8-13, OD, syntypes, 4971/1-2, AMNH, New York
Images
(Click to enlarge in a new window)
Fig. 202,3a,b. *S. intermittens (Hall), syntypes, Hamilton Gr., W. N.Y., a, b, ext. views, X1.0 (Hall, 1876).
Synonyms
Geographic Distribution
N. Am.(N.Y.)
Age Range
Beginning Stage in Treatise Usage:
M.Dev.(Givet.)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
M.Dev.(Givet.)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Solitary, subcylindrical to ceratoid, with irregular flangelike expansions, calice relatively flat, major septa thick, extending almost to axis, their ends in contact about irregular narrow axial space in early stage, but withdrawing somewhat in late stages, cardinal fossula weakly to moderately developed, cardinal septum shortened in mature stages, minor septa very short, no dissepiments, tabulae complete or incomplete, relatively flattopped axially, their peripheral edges may be deflected upward or downward [see STUMM & WATKINS, 1961, p. 447].