Cingulatisporites sp. 2

Legrand, Julien, Pons, Denise, Nishida, Harufumi & Yamada, Toshihiro, 2011, Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan), Geodiversitas 33 (1), pp. 87-135 : 108

publication ID	https://doi.org/10.5252/g2011n1a6
DOI	https://doi.org/10.5281/zenodo.4608488
persistent identifier	https://treatment.plazi.org/id/039A87FC-FFD4-6178-FE8A-FBDBFF56FA0A
treatment provided by	Felipe (2021-03-11 13:46:52, last updated 2021-03-16 18:51:06)
scientific name	Cingulatisporites sp. 2
status

Treatment

Cingulatisporites sp. 2 ( Fig. 12A View FIG )

OCCURRENCE. — Ashikajima and Kimigahama Fm.

DESCRIPTION

Cingulate trilete microspore. Amb rounded triangular. The laesurae are raised, undulating, and extend to the cingulum. Exine scabrate. Equatorial diameter = 45-50 µm; cingulum thickness = 5-8 µm.

BOTANICAL AFFINITIES

Filicopsida.

FIG. 12. — Spores and pollen grains from the Barremian of south-west Japan:A, Cingulatisporites sp.2, proximal face, Ashikajima Fm, SEM-II2c; B, C, Distaltriangulisporites sp., proximal and distal faces, Ashikajima Fm, II2c-N53; D, Contignisporites cooksonii (Balme, 1957) Dettmann, 1963, distal face, Kimigahama Fm, I1a-O51/1; E, Aequitriradites sp., Ashikajima Fm, II2c-Y59/2; F, Aequitriradites verrucosus (Cookson & Dettmann,1958) Cookson & Dettmann,1961,Ashikajima Fm,II2h-J66/4;G, M, Contignisporites burgeri Filatoff, McKellar & Price in Filatoff & Price, 1988, proximal and distal faces, Ashikajima Fm, II2d-P47/4; H, I, Polycingulatisporites reduncus