Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan) Author Legrand, Julien Author Pons, Denise Author Nishida, Harufumi Author Yamada, Toshihiro text Geodiversitas 2011 2011-03-31 33 1 87 135 http://dx.doi.org/10.5252/g2011n1a6 journal article 7707 10.5252/g2011n1a6 31ed99a5-9135-40a2-92a4-64217d9de577 1638-9395 4597011 Inaperturopollenites sp. ( Fig. 13E ) OCCURRENCE. — Ashikajima and Kimigahama Fm. DESCRIPTION Inaperturate pollen grain. Amb subcircular. The exine is psilate, very folded and thin (about 1 µm thick). Equatorial diameter = 25-45 µm . BOTANICAL AFFINITIES Pinales .