radiolaria - rads_cat - Clathrocyclas universa longispina

CATALOG OF ORIGINAL DESCRIPTIONS: Clathrocyclas universa longispina Clark & Campbell 1942

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 -> C -> Clathrocyclas -> Clathrocyclas universa longispina
Other pages this level: C. alcmenae, C. aurelia, C. australis, C. basilea, C. cabrilloensis, C. cassiopeiae, C. collaris, C. coscinodiscus, C. danaes, C. diceros, C. europae, C. humerus, C. jonis, C. latonae, C. lipmanae, C. pirum, C. principessa, C. semeles, C. transitiva, C. universa, C. universa amplaspina, C. universa cylindrica, C. universa grandis, C. universa grandis [pri. jun. hom], C. universa kranimorphos, C. universa longispina, C. universa nova, C. universa subadvena, C. universa undella, C. universa universa

Clathrocyclas universa longispina

Citation: Clathrocyclas universa longispina Clark & Campbell 1942
Rank: sub-species
Described on page(s) : p.88
Type specimens: pl.7, fig.15
Type repository: University of California, Museum of Paleontology, San Francisco
Family (traditional): Theoperidae
Family (modern): Theopilidae

Current identification:

Original Description

Shell generally conical with extremely long horn and wide, flaring abdomen; apical horn 0.5 total length in length, spinelike; cephalis caplike, rounded apically, asymmetrical, wider than high, the sides generally convex, limited basally by change in contour; thorax conical (almost uniformly 60°), the sides asymmetrical, flat on one side and barely convex on the other, with a contraction resembling a stricture just above the septal ring; abdomen conical (43°), much eroded in the figured specimen; wall and surface much as in C. universa undella n. subsp., save that the small pores are deeply set and there are two rows of abdominal pores, of which the first row (twelve pores) are smaller than the second row, those of the second row not only larger but also squarish, perhaps also a third row whose lower margins are eroded.

Length 280µm; of horn, 140µm; diameter of aperture, 120µm; of thoracic pores, 10µm. Distinguishing characters (rw): This variety resembles C. universa grandis n. var. but has a longer (?) horn, shorter, stouter thorax, and a convex abdomen. Its horn is not thick like that of C. universa amplaspina n. var. and it has more than a single row of abdominal pores which distinguishes C. universa undella n. subsp.



Latin longus + spina -ae = long spine

Extra details from original publication

Editors' Notes
[The authors here list this species under the subgeneric name Clathrocyclia and include the subgeneric name in the species name.


Clark, B. L. & Campbell, A. S. (1942a). Eocene radiolarian faunas from the Mt. Diablo area, California. Geological Society of America, Special Papers. 39: 1-112. gs


Clathrocyclas universa longispina compiled by the radiolaria@mikrotax project team viewed: 4-12-2022

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