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Orbitolina (Mesorbitolina) texana 5 
Type depressed conical, convex, flat, apex elevated

found in Sarakhs, North East Iran  by  Morteza Taherpour Khalil Abad    Barremian - Aptian      Taxon Profile
Orbitolina (Mesorbitolina) texana, Sarakhs, Iran, Barremian - Aptian

Transversal top, side and top view of a specimen of Orbitolina (Mesorbitolina) texana

Test shape depressed conical, with a convex upper and flat lower side, initial chambers (=apex) elevated

The classification is based upon: Loeblich and Tappan, Treatise on Invertebrate Paleontology, Part C, C310 and
Cushman,J.A.: Foraminifera, Their Classification and Economic Use, 4ed. 1959, Page 210/211 + Plate 19 and
HUSINEC A, Mid Cretaceous orbitolinid (Foraminiferida) record from the islands of Cres and Losinj (Croatia) and its regional stratigraphic correlation. Cretaceous Research vol: 21 issue: 1 page: 155-171 year: 2000