This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Linked specimens: USNM-184796 USNM-184795 USNM-184797 USNM-184797 USNM-184796 USNM-184794
Current identification/main database link: Schackoina cenomana (Schacko, 1897)
Derivation of name.-From the Latin sella = saddle and forma = shape.
Original Description
Description Test small, planispiral, biumbilicate, laterally compressed. Chambers elongate in direction of coil, slightly inflated. Juvenile chambers have one centrally positioned tubulo-spine; later chambers have two tubulospines located in the plane of coil, one aboral and one adoral. Wall with numerous minute pores. Occasional small pustules on thin wall surface. Primary aperture with a flanged lip extending across the margin into the umbilici. Relict apertures present along the umbilici. Sutures indistinct, depressed, radial.
Extra details from original publication
Occurrence.-Mooreville Chalk at Hatcher's Bluff, on south bank of Alabama River, 43 feet above river level at mile 201.55, Dallas County.
Range.-Lower Campanian.
Editors' Notes
Masters, B. A. (1976). Planktonic foraminifera from the Upper Cretaceous Selma group, Alabama. Journal of Paleontology. 50(2): 318-330. gsReferences:

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Schackoina sellaeforma compiled by the pforams@mikrotax project team viewed: 18-6-2026
Short stable page link: https://mikrotax.org/pforams/index.php?id=132233 Go to Archive.is to create a permanent copy of this page - citation notes |
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Comments (2)
original name Schackoina sellaeforma (not sellaeformis)
corrected now, thanks