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 Distaltriangulisporites sp. ( Fig. 12B, C ) Distaltriangulisporites sp. B, Legrand, Palynologie des dépôts Jurassique supérieur et Crétacé inférieur du Japon , et provinces paléofloristiques du sud-est asiatique : 169, pl. XIV, fig. 10 (2009). OCCURRENCE. — Ashikajima Fm. DESCRIPTION Cingulate trilete microspore.Amb rounded triangular. The laesurae are slightly raised and extend to the cingulum.Proximal face scabrate.The distal face shows flat muri forming a coarse reticulum with wide rounded lumina. Equatorial diameter = 28-32 µm . BOTANICAL AFFINITIES Schizaeales , Anemiaceae ( Dettmann & Clifford 1992 ) .