CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia fohsi Cushman & Ellisor 1939

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 fohsi
Other pages this level: << < G. crystalriverensis, G. cushmani, G. dalii, G. decorata, G. dehiscens, G. delrioensis, G. denseconnexa, G. dolabrata, G. dominicana, G. edgari, G. ehrenbergi, G. emilei, G. extans, G. faragi, G. flabelliformis, G. fohsi, G. fohsi robusta, G. formosa formosa, G. formosa gracilis, G. gavalae, G. gemma, G. globigeriniformis, G. greenhornensis, G. hadii, G. haunsbergensis, G. haynesi, G. hemisphaerica, G. hessi, G. hexacamerata, G. hirsuta aemiliana, G. hirsuta eastropacia, > >>

Globorotalia fohsi

Citation: Globorotalia fohsi Cushman & Ellisor 1939
Rank: species
Type locality: Terrebonne Parish, Louisiana
Type age: Miocene
Type sample and level: core sample from Humble Oil and Refining Company's No.1 Ellender, at a depth of 9,612 feet.
Holotype Repository: Washington; USNM
Type & figured specimens: Holotype (Cushman CoIl. No. 25227)

Linked specimens: USNM-25228 USNM-25227

Current identification/main database link: Globorotalia fohsi Cushman & Ellisor, 1939


Original Description
Test somewhat longer than broad, unequally biconvex, dorsal side somewhat less convex than the ventral side which is umbili­ cate, periphery of the earlier part subacute to slightly rounded, in the later portion more acute; chambers very distinct, six or seven in the adult whorl, increasing rapidly in size, and especially in height as added, slightly inflated, especially on the ventral side; sutures distinct, slightly depressed, more so on the ventral side, somewhat limbate dorsally, slightly curved and nearly radial on the. ventral side, strongly curved on the dorsal side; wall dis­tinctly perforate, smooth; aperture, an elongate opening on ventral side of the margin of the last-formed chamber, extending from the umbilicus nearly to the periphery, with a distinct lip.

Size: Length 0.45-0.55 mm. ; breadth 0.30-0.35 mm. ; thickness 0.20 mm.

Etymology: It is named for F. Julius Fohs.

Extra details from original publication
This should make a distinctive stratigraphic marker for the Miocene. It differs from Globorotalia menardii (d'Orbigny) in the shape of the chambers which are much lower in our species, more strongly curved sutures, and more elongate test. 

References:

Blow, W. H. & Banner, F. T. (1966). The morphology, taxonomy and biostratigraphy of Globorotalia barisanensis LeRoy, Globorotalia fohsi Cushman and Ellisor, and related taxa. Micropaleontology. 12(3): 286-302. gs

Cushman, J. A. & Ellisor, A. C. (1939). New species of foraminifera from the Oligocene and Miocene. Contributions from the Cushman Laboratory for Foraminiferal Research. 15: 1-14. gs


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Globorotalia fohsi compiled by the pforams@mikrotax project team viewed: 7-12-2019

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