Citation: Globigerina dudrouensis Kavary, in Kavary & Frizzell 1964Rank: speciesType sample (& lithostrat): Globigerina Marls GroupType age (chronostrat): PaleoceneType locality: A section at Zardeh Kuh, in the Kuh-i-Dudrou Anticline, Lurdigen area, Zagros Mountains, IranType repository: Rolla Missouri; Department of Geology. University of Missouri. Rolla, Missouri;
Original Description Test medium size, longer than broad, early part very low trochospiral (very much like Globigerina triloculinoides Plummer), last chamber completely spherical, comprising about 50 to 60 percent of test, 3 chambers visible on umbilical side; sutures depressed in spiral part strongly incised around final chamber and remainder of test; wall finely pitted, pitting somewhat more pronounced in early portion; aperture inclined, extending from umbilicus toward periphery, with very distinct lip, accessory openings not observed. Size: Length, 0.50-0.40 mm.; breadth, 0.18-0.30 mm. Extra details from original publication Remarks. - Globigerina dudrouensis resembles Globigerinoides triloba triloba (Reuss) [Globigerina triloba 1850] but, unlike that form, it has no semicircular aperture. Moreover, the opening is covered by a distinct lip, which extends from the umbilicus toward the periphery of the test. The position of the aperture and the general shape, especially of the final chamber, separate the species from Globigerina triloculinoides.
Kavary, E. & Frizzell, D. L. (1964). Upper Cretaceous and lower Cenozoic Foraminifera from west central Iran. Bulletin University of Missouri School of Mines and Metallurgy, Technical Series. 102: 1-89. gs
Globigerina dudrouensis compiled by the pforams@mikrotax project teamviewed: 31-3-2023
spec epith: dudrouensis from the Kuh-i-Dudrou anticline (Iran)
corrected, thanks Jeremy