Fig. 6From: Pseudoinversion of septal sutures in Middle Jurassic–Lower Cretaceous non-heteromorph ammonitesPictonia (Pictonia) flodigarriensis Matyja, Wierzbowski and Wright with transitional sutural pseudoinversion, lateral view; Lower Kimmeridian, Baylei Zone, flodigarriensis horizon, Flodigarry, Isle of Skye; specimen no. MWG UW ZI/94/01-55/ST 837 (Wierzbowski et al. 2018, Fig. 6a), a—full view; b—enlarged photo of septal suture showing pseudoinversionBack to article page