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Elphidiella
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Elphidiidae
Subfamily:
Elphidiinae
Formal Genus Name and Reference:
Elphidiella CUSHMAN, 1936, *469, p. 89
Type Species:
Polystomella arctica Parker & Jones in BRADY, 1864, *186, p. 471, OD
Images
(Click to enlarge in a new window)
Fig. 508,6-8. *E. arctica (PARKER & JONES), Rec., Arctic (6), Alaska (7), N.Atl. (8); 6a,b, side, apert. views, X23 (*2117); 7a,b, side, apert. Views, X26 (*1162); 8, axial sec. showing septal canal, simple sutural septal foramen, and areal
openings due to resorption, approx. X50 (*946)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.(Dan.)
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, planispiral and involute, bilaterally symmetrical with equitant chambers commonly leaving axial umbilical plug which lacks radial canals; sutures with openings to subsutural and vertical canals, generally forming double row of alternating pores along each radial suture, without retral processes, although striate surface ornamentation may be present, consisting of grooves originating at sutural pores and extending onto chamber walls; wall calcareous, radial and laminated in structure; aperture multiple, interioareal, consisting of scattered pores in apertural face.
References
Museum or Author Information
Classification
Phylum:
Protista
Subphylum:
Sarcodina
Class:
Reticularea
Subclass:
Granuloreticulosia
Order:
Foraminiferida
Suborder:
Rotalina
Superfamily:
Rotaliacea
Family:
Elphidiidae
Subfamily:
Elphidiinae
Formal Genus Name and Reference:
Elphidiella CUSHMAN, 1936, *469, p. 89
Type Species:
Polystomella arctica Parker & Jones in BRADY, 1864, *186, p. 471, OD
Images
(Click to enlarge in a new window)
Fig. 508,6-8. *E. arctica (PARKER & JONES), Rec., Arctic (6), Alaska (7), N.Atl. (8); 6a,b, side, apert. views, X23 (*2117); 7a,b, side, apert. Views, X26 (*1162); 8, axial sec. showing septal canal, simple sutural septal foramen, and areal
openings due to resorption, approx. X50 (*946)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.(Dan.)
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Test free, planispiral and involute, bilaterally symmetrical with equitant chambers commonly leaving axial umbilical plug which lacks radial canals; sutures with openings to subsutural and vertical canals, generally forming double row of alternating pores along each radial suture, without retral processes, although striate surface ornamentation may be present, consisting of grooves originating at sutural pores and extending onto chamber walls; wall calcareous, radial and laminated in structure; aperture multiple, interioareal, consisting of scattered pores in apertural face.