Clathrocyclas (Clathrocyclia) universa longispina Clark and Campbell 1942.jpg
Clathrocyclas universa longispina
Citation: Clathrocyclas universa longispina Clark & Campbell 1942Rank: sub-speciesDescribed on page(s) : p.88Type specimens: pl.7, fig.15Type repository: University of California, Museum of Paleontology, San FranciscoFamily (traditional): TheoperidaeFamily (modern): Theopilidae
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. Translation: Size: Etymology: 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 teamviewed: 4-12-2022