1. Abbink OA (1998) Palynological investigations in the jurassic of the north sea region. LPP contributions series 8. LPP foundation, Utrecht
2. Abbink OA, Van Konijnenburg-Van Cittert JHA, Visscher H (2004) A sporomorph ecogroup model for the Northwest European jurassic-lower cretaceousi: concepts and framework. Neth J Geosci 83(1):17–31
3. Agardh CA (1823) Species algarum rite cognitae: cum synonymis, differentiis specificis et descriptionibus succinctis (1). sumtibus E. Mavritii
4. Alavi M, Barale G (1970) Etude preliminaire de la flore de la formation de shemshak dans la region de djam (Iran). Pub De La Société Linnéenne De Lyon 39(8):241–252
5. Ameri H, Dastanpour M, Khalilizade H, Zamani F (2014) Plant fossil remains from the bajocian-bathonian of hojedk formation, babhutk area, Kerman. Iran Arabian J Geosci 7(6):2293–2302