Fig. 5From: Primotrapa gen. nov., an extinct transitional genus bridging the evolutionary gap between Lythraceae and Trapoideae, from the early Miocene of North ChinaFruits and seeds of Primotrapa weichangensis from the Miocene of Weichang, China. a Muddy siltstone with three P. weichangensis fruits exposed on the surface. PEPB70631. b-g Laterally compressed fruits, each showing a persistent floral cup with 1–4 remaining sepals, ribbed fruit surface, persistent peduncle, and probably one seed in the fruit (f). PEPB70632–70637. h-j Laterally compressed seeds of P. weichangensis. PEPB70681–70683. k-l SEM of the seed surface, showing irregularly shaped, pentagonal to hexagonal cellsBack to article page