CATALOG OF ORIGINAL DESCRIPTIONS: Spongurus occidentalis Campbell & Clark 1944

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: rads_cat -> S -> Spongurus -> Spongurus occidentalis
Other pages this level: S. biconstrictus, S. biconstrictus triangulatus, S. bilobatus, S. cauleti, S. crispus, S. crowleysensis, S. cylindricus, S. cylindricus jh, S. elongatus, S. illepidus, S. irregularis, S. occidentalis, S. ovatus, S. phalanga, S. pylomaticus, S. pylomaticus borealis, S. radians, S. saxeus, S. smithi, S. spatulaeformis, S. spongechinus, S. stoehri, S. stuparius, S. stypticus, S. tricolus, S. yatsuoensis

Spongurus occidentalis

Citation: Spongurus occidentalis Campbell & Clark 1944
Rank: species
Type locality: LL462
Type age (chronostrat): Late Cretaceous, Mesozoic.
Type specimens: pl.5, fig.8
Type repository: University of California, Museum of Paleontology, Berkeley, Holotype: Slide No.34548..
Repository city: San Francisco
Described on page(s) : p.13

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Current identification:

Original Description
Shell large, elongate (3.62 times its greatest breadth in length), generally bitruncate spindle-shaped, two opposite ends nearly squarely truncated and their breadth is about 0.36 median breadth, sides more or less regularly, although obscurely subcylindrlcal for about 0.3 of length, thence, in median region mildly, but not widely biconvex; surface without long radial spines, generally minutely thorny; internally, shell loosely frothy with wide alveoles and very delicate framework, everywhere of similar structure.

Size: Length, total, 620µm; size of alveoles, 12.2µm.

Extra details from original publication
Distinguishing features: Spongurus occidentalis n. sp., differs from Tertiary fossil species, S. phalanga (Stöhr, 1880; Haeckel, 1887) in being less elongate (3.6 rather than 5 times breadth in length), and in having coarse alveoles.

Editors' Notes
The authors here list Spongurus occidentalis under the subgeneric name Spongurantha and include the subgeneric name in the species name.[comment from RadWorld database]


Campbell, A. S. & Clark, B. L. (1944b). Radiolaria from Upper Cretaceous of middle California. Geological Society of America, Special Papers. 57: 1-61. gs


Spongurus occidentalis compiled by the radiolaria@mikrotax project team viewed: 21-4-2021

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