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Ammoastuta
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Textulariina
Superfamily:
Lituolacea
Family:
Lituolidae
Subfamily:
Lituolinae
Formal Genus Name and Reference:
Ammoastuta Cushman & BRÖNNIMANN, 1948, *498, p. 17
Type Species:
A. salsa, OD
Images
(Click to enlarge in a new window)
Fig. 151,4. *A. salsa, Rec., USA(La.), 4a,b, side and edge views, X130 (*2117), Fig. 151,5. A. alberdingi (Bursch), Oligo., Venez., 5a,b, side, edge views, X174 (*2117)
Synonyms
Geographic Distribution
N.Am.(USA)-W.Indies(Trinidad)-S. Am.(Venez.-Ecuad.)-C. Am.(Panama)
Age Range
Beginning Stage in Treatise Usage:
U.Eoc.
Beginning International Stage:
Priabonian
Fraction Up In Beginning Stage:
0
Beginning Date:
37.71
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Ovate to flabelliform, compressed test with low, rapidly broadening chambers in curved, semienrolled series, similar to calcareous isomorph Astacolus, wall finely agglutinated on inner pseudochitinous layer, interior simple, aperture transverse areal slit near center of terminal face of final chamber, secondary apertures consisting of cribrate openings
at lower end of final chamber (nearest proloculus).
References
$\qquad$ , \& Brönnimann, Paul, 1948, Some new genera and species of Foraminifera from brackish water of Trinidad: Cushman Lab. Foram. Research, Contrib., v. 24, pt. 1, p. 15 21, pl. 3, 4.-(498A) 1948, Additional new species of arenaceous Foraminifera from shallow waters of Trinidad: Same, Contrib., v. 24, pt. 2, p. 37-42, pl. 7, 8.
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Textulariina
Superfamily:
Lituolacea
Family:
Lituolidae
Subfamily:
Lituolinae
Formal Genus Name and Reference:
Ammoastuta Cushman & BRÖNNIMANN, 1948, *498, p. 17
Type Species:
A. salsa, OD
Images
(Click to enlarge in a new window)
Fig. 151,4. *A. salsa, Rec., USA(La.), 4a,b, side and edge views, X130 (*2117), Fig. 151,5. A. alberdingi (Bursch), Oligo., Venez., 5a,b, side, edge views, X174 (*2117)
Synonyms
Geographic Distribution
N.Am.(USA)-W.Indies(Trinidad)-S. Am.(Venez.-Ecuad.)-C. Am.(Panama)
Age Range
Beginning Stage in Treatise Usage:
U.Eoc.
Beginning International Stage:
Priabonian
Fraction Up In Beginning Stage:
0
Beginning Date:
37.71
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Ovate to flabelliform, compressed test with low, rapidly broadening chambers in curved, semienrolled series, similar to calcareous isomorph Astacolus, wall finely agglutinated on inner pseudochitinous layer, interior simple, aperture transverse areal slit near center of terminal face of final chamber, secondary apertures consisting of cribrate openings
at lower end of final chamber (nearest proloculus).
References
$\qquad$ , \& Brönnimann, Paul, 1948, Some new genera and species of Foraminifera from brackish water of Trinidad: Cushman Lab. Foram. Research, Contrib., v. 24, pt. 1, p. 15 21, pl. 3, 4.-(498A) 1948, Additional new species of arenaceous Foraminifera from shallow waters of Trinidad: Same, Contrib., v. 24, pt. 2, p. 37-42, pl. 7, 8.