Fig. 6: SEM images of selected spores and pollen grains from the megafossil-bearing bed of the Gaiman Formation.
From: Tropical seagrasses reached Patagonia during Miocene times

a Cyatheacidites annulatus. b Peromonolites vellosus. c Equisetosporites claricristatus. d Cymathiosphaera sp. e Nothofagidites saraensis. f, g Arecipites cf. otagoensis. h Dryptopollenites sp. i Mutisiapollis viteauensis. j Proteacidites sp. 1. k Striatricolporites sp. 2. l Striatricolporites sp. 1. m Chenopodipollis chenopodiaceoides. n Senipites sp. o Rhoipites sp. 2. p Margocolporites vanwijhei. Scale bar equals 5 µm, except in figures (a), (b), and (p), where scale bar equals 10 µm. LM images from specimens of Figs. (a), (f), (h), (i), (n), and (p) in Fig. S1.