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Tetralithoides symeonidesii

Edited by Lyndsey on Thu, 10/03/2011 - 14:40

Tetralithoides symeonidesii Theodoridis, 1984

Description: Elliptical with moderately narrow rim surrounding central-area filled by four plates.

Remarks: The extant and Quaternary form T. quadrilaminata (Okada and McIntyre, 1977) Jordan, Kleijne and Heimdal, 1993 is significantly smaller and has a much narrower rim so T. symeonidesii should probably be retained as a discrete species.

5-28symeonidesii.JPG 5-29symeonidesii.JPG

Geological Time Data
Geological Time Periods: 
NN12
NN2
Biblio Reference: 
Young, JR.  1998.  Neogene. Calcareous nannofossil biostratigraphy. :225-265.
Notes on occurrence information: 

Questions occur about this species range.

Scratchpads developed and conceived by: Vince Smith, Simon Rycroft, Dave Roberts, Ben Scott...