Triquetrorhabdulus carinatus

Edited by Lyndsey on Thu, 10/03/2011 - 13:42

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, my obs.);
(B) shorter and broader specimens with distinct taper (15 - 25 x 2 - 4 microns, my obs.).

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

Original description:

Geological Time Data

Geological Time Periods:

NN2

NP25

Biblio Reference:

Young, JR. 1998. Neogene. Calcareous nannofossil biostratigraphy. :225-265.

Notes on occurrence information:

Distribution rather sporadic.

Nannotax Enabling nannofossil research