Revision of Triquetrorhabdulus carinatus from Thu, 31/01/2008 - 13:50

Sun, 30/03/2008 - 13:17 — Jeremy Young

Citation:

Triquetrorhabdulus carinatus Martini, 1965

Description: Elongate (up to 50μm). All three blades identical, without ridges.

Remarks: As noted by Martini (1965) specimens vary considerably in dimensions with two main types:

(A) long thin specimens with parallel sides (entire specimens 25 - 50 x 1.5 - 2.5 microns);
(B) shorter and broader specimens with distinct taper (15 - 25 x 2 - 4 microns).

There does not, however, seem to be any consistent pattern to the distribution of these forms.

Range: NP25-NN2, distribution rather sporadic.

Nannotax Enabling nannofossil research