radiolaria - rads_cat - Lophocyrtis exitelus radiolaria - rads_cat - Lophocyrtis exitelus

CATALOG OF ORIGINAL DESCRIPTIONS: Lophocyrtis exitelus Sanfilippo 1990

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 -> L -> Lophocyrtis -> Lophocyrtis exitelus
Other pages this level: L. cavifundus, L. dumitricai, L. exitelus, L. galenum, L. golli, L. hadra, L. haywardi, L. holothuria, L. inaequalis, L. jacchia hapsis, L. keraspera, L. klydus, L. nomas, L. norvegiensis, L. oberhaensliae, L. pallantae, L. pseudojacchia, L. regipileus, L. synapta, L. zeira

Lophocyrtis exitelus

Citation: Lophocyrtis exitelus Sanfilippo 1990
Taxonomic rank: species

Current identification/main database link: Lophocyrtis exitelus Sanfilippo 1990


Original Description

This species has a strongly developed apical spine with thorns near the distal end and arches at the base where it joins the cephalis. Cephalic wall perforated by 20-30 small circular to subcircular pores. Collar stricture marked by a distinct change in contour. Some specimens have a single row of larger pores just below the collar stricture. Thorax approximately hemispherical with a rough to thorny surface. There are about 16 to 31 pores around the greatest circumference. Abdomen reduced to a single row of large pores, followed in some specimens by a delicate subcylindrical part attached to the three to six widely divergent feet (Plate 1, 4 ). In most specimens there are only thorns on the feet marking attachments of this rarely preserved lattice (Plate 1, 2 ). The single row of large pores seems to be equivalent to a similar row in the ancestor L. (L.) jacchia, where the proximal abdominal pores are larger than the others. Three to six widely divergent feet, round in cross-section and no differentiated peristome.

References:

Sanfilippo, A. (1990). Origin of the subgenera Cyclampterium, Parampterium and Sciadiopeplus from Lophocyrtis (Lophocyrtis) (Radiolaria, Theoperidae). Marine Micropaleontology. 15(3-4): 287-312. gs


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Lophocyrtis exitelus compiled by the radiolaria@mikrotax project team viewed: 8-7-2025

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