radiolaria - rads_cat - Lophocyrtis oberhaensliae radiolaria - rads_cat - Lophocyrtis oberhaensliae

CATALOG OF ORIGINAL DESCRIPTIONS: Lophocyrtis oberhaensliae 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 oberhaensliae
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 oberhaensliae

Citation: Lophocyrtis oberhaensliae Sanfilippo 1990
taxonomic rank: species

Current identification/main database link: Lophocyrtis oberhaensliae Sanfilippo 1990


Original Description

Fundamental spicule reduced to the bars separating four collar pores and apical bar forming a part of the cephalic wall. A weakly developed apical spine is present in some specimens, in others it is reduced to a thickenedcap over the cephalis. Cephalic wall perforated by 20-30 small circular to subcircular pores. Collar stricture marked by a distinct change in contour externally and a constriction internally. Thorax approximately hemispherical, with a rough surface and about 22-32 pores on the maximum circumference, arranged quincuncially. The abdomen is in many respects similar to that of the ancestor Lophocyrtis(Cyclampterium) milowi. While the abdomen in the ancestor is rounded triangular in crossection, because of the development of the keels, it is round in L. (S.) oberhaensliae. The abdominal pores are large (12-30 around the circumference), becoming even larger and more irregular in the latest members (Plate II, 14). This conically expanding segment is terminally open and often surrounded by up to12 short feet originating from the lattice bars constituting the abdominal lattice (there is no differentiated peristome) and not differentiated from the lattice. Later forms progressively develop a shorter, widely expanding abdomen with longer solid feet.

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 oberhaensliae compiled by the radiolaria@mikrotax project team viewed: 10-9-2024

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