CATALOG OF ORIGINAL DESCRIPTIONS: Gorgospyris lamellipes 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 -> G -> Gorgospyris -> Gorgospyris lamellipes
Other pages this level: G. cystophora, G. cystophora brevipes, G. cystophora cystophora, G. eurycolpos, G. hemisphaerica, G. hemisphaerica sibirica, G. hexapodalia, G. infida, G. lamellipes, G. lamellosa, G. liriope, G. medusa, G. medusetta, G. perizostra, G. perplexus, G. polypus, G. quinquespine, G. schizopodia, G. thamnopodia

Gorgospyris lamellipes

Citation: Gorgospyris lamellipes Clark & Campbell 1942
Rank: species
Type specimens: pl.9, fig.5
Type repository: University of California, Museum of Paleontology, San Francisco
Described on page(s) : p.59
Family (traditional): Trissocyclidae
Family (modern): Triospyridae

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Current identification:


Original Description
Shell markedly dipleuric, nut-shaped, with six platelike feet, one pair frontal an one pair caudal, and also one lateral foot on each of the two quadrants, the frontal and caudal feet arising from a common basal plate, the feet distinctly lamellar, equal (save as broken), convex on the outer face, concave internally, subrectangular, as wide at the base as distally, truncated at the free ends, hyaline, inwardly curved but not clawlike as in G. hexapodalia n. sp., rather long; shell divided vertically into two subequal quadrants by the median great-circle with slight stricture save on the coryphal face where the indentation is greater than on the sides, generally shaped like a halved walnut; the surface with more or less uniform, subcircular, double-contoured pores, these pores well-spaced and more or less uniformly distant, in four obscure, irregular tiers, three or four pores in a tier on one face of one quadrant; the surface also with wrinkled, short lines and is rough; the wall thick, irregular, and with scattered knobs between the pores, the whole rather dense; great-circle wholly internal; aperture wide, entire.

Length, of shell, 84.8µm; of foot, 69.4µm; diameter of widest part of shell, 104.2µm; of pores, 10.0µm. Distinguishing characters (rw): Gorgospyris lamellipes n. sp. differs from G. hexapodalia n. sp. in stronger dipleuric shell, greater dimensions, and broader lamellar feet; it has no cuff around the aperture as that species. It differs from G. hemisphaerica n. sp. in fewer fact, six instead of twelve, as well as different shell, and from G. cystophora n. sp. in lack of gatelike pores and loose framework, and also in lamellar rather than twiglike feet.

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

References:

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


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Gorgospyris lamellipes compiled by the radiolaria@mikrotax project team viewed: 1-3-2021

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