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Triquetrorhabdulus extensus

Edited by Lyndsey on Thu, 10/03/2011 - 12:45

Triquetrorhabdulus extensus Theodoridis, 1984

Description: One lateral blade very wide, with weak ridges.

Remarks: This form is very similar to some specimens of T. striatus in shape, and has weak lateral ridges (Theodoridis 1984 pl. 11/1), it may not be worth differentiating the two species.

Range: NN11B-12.

 9-30extensus.JPG

Geological Time Data
Geological Time Periods: 
NN12
NN11b
Biblio Reference: 
Young, JR.  1998.  Neogene. Calcareous nannofossil biostratigraphy. :225-265.
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