Cerebropollenites thiergartii EBERH. SCHULZ , 1967

Hofmann, Christa-Ch., Odgerel, Nyamsambuu & Seyfullah, Leyla J., 2021, The Occurrence Of Pollen Of Sciadopityaceae Luerss. Through Time, Fossil Imprint 77 (2), pp. 271-281 : 273

Cerebropollenites thiergartii EBERH. SCHULZ, 1967

Text-fig. 2a–c

O c c u r r e n c e. Locality 1, St. Pölten, Austria.

D e s c r i p t i o n. Monad pollen of subspheroid to suboblate shape, elliptical in equatorial view; equatorial diameter ca. 55.5 µm (LM) to 48.9 µm (SEM); polar diameter ca. 40 µm (LM) to 37.6 µm (SEM, N = 1); wall thickness 2.5 to 3.1 µm; nexine thinner than sexine; sculpturing verrucate to occasionally rugulate and perforate covered with evenly spaced supratectal echini; leptoma area either naked or unevenly covered by angular, partly echinate micro-verrucae.

Figures

Text-fig. 2. Aptian to Albian Cerebropollenites taxa, all scale bars in LM and SEM overview images 10 µm, scale bars in SEM detailed images 2 µm. a–c: Cerebropollenites thiergartii from St. Pölten (Austria), a – LMimage, equatorial view, b – SEM equatorial overview with visible, less sculptured leptoma, c – detail of echinate verrucae; d–f: Cerebropollenites thiergartii from Khovil basin (Mongolia), d – LM image polar view with well visible thin-walled leptoma, e – SEM of proximal polar view with faintly sculptures leptoma, f – SEM detailed view of transition from leptoma to normal sexine sculpturing; g–i: Cerebropollenites macroverrucosus from Khovil basin (Mongolia), g – LM image of oblique equatorial view, h – SEM of oblique equatorial view with concave leptoma, i – SEM detail of the rugulate to verrucate sexine and smaller sculpturing in leptoma area.