CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia marksi Martin 1943

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.

Higher levels: pf_cat -> G -> Globorotalia -> Globorotalia marksi
Other pages this level: << < G. limbata latiumbilicata, G. limbata oregope, G. lobata, G. loeblichi, G. lupeae, G. magnifica, G. margaritae, G. margaritae evoluta, G. margaritae primitiva, G. marginaculeata, G. marginodentata, G. marginodentata propelleriformis, G. mariae, G. mariae gratiae, G. mariae mariae, G. marksi, G. martinezi, G. mattseensis, G. mayeri, G. mayeri nympha, G. menardii antarctica, G. menardii fijiensis, G. menardii gibberula, G. menardii jamesbayensis, G. menardii miocenica, G. menardii miotumida, G. menardii multicamerata, G. menardii neoflexuosa, G. menardii panda, G. mineacea, G. minuta> >>

Globorotalia marksi

Citation: Globorotalia marksi Martin 1943
Rank: Species
Type locality: Lodo Gulch, Panoche Quadrangle, Fresno County, California.
Type age (chronostrat): Early Eocene
Type sample (& lithostrat): Sample I-S6+11, Lodo formation,
Type specimens: Plate VIII, figures la, lb, lc; Holotype.-Stanford Univ. Paleo. Type Coli. No. 7402.; Paratypes in the USNM
Type repository: Stanford; Paleontological Type Collection, Stanford University, Calif.

Linked specimens: USNM-559448

Current identification/main database link: Morozovella aragonensis (Nuttall 1930)

Original Description
"Test rotaliform, strongly convex ventrally, flat tolightly convex dorsally; wall calcareous, perforate, completely covered with fine protuberances, giving a granular appearance; periphery subacute, not keeled, lobulate along two or three chambers; complete whorl visible dorsally, early chambers somewhat indistinct; only last whorl of five or six chambers visible ventrally; chambers inflated, increasing gradually in size as added; dorsal sutures slightly curved, almost tangential, usually indistinct, slightly if at all depressed; ventrall sutures depressed, distinct, straight; umbilicus on ventral side open; aperture an indistinct slit in plane of ventral sutures at base of last-formed chamber, extending up to the umbilicus, commonly filled with extraneous material. 

Size: Maximum diameter 0.44 mm.; minimum diameter 0.39 mm.; thickness 0.3 mm.

Etymology: Named in honor of Jay Glenn Marks.

Extra details from original publication
Remarks.-This species is similar to Globorotalia crassata var. densa (Cushman) of Cushman & Barksdale (1930) but differs in being typically larger, more compact, more strongly convex ventrally, less distinctly papillate, and with the chambers less distinctly lobulate.  

Range.-Samples I-S2 through I-Sll-54.


Martin, L. T. (1943). Eocene foraminifera from the type Lodo Formation, Fresno County, California. Stanford University Publications, Geological Sciences. 3(3): 1-35. gs


Globorotalia marksi compiled by the pforams@mikrotax project team viewed: 5-12-2020

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