1. Some British Wealden megaspores and their fades distribution;BATTEN;Palaeontology,1969
2. Spore production in Regnellidium;CHRYSLER;Bull. Torrey Bot. Club.,1939
3. On megaspores, Charophyta fruits and some other small fossils from the Cretaceous;DIJKSTRA;Palaeobotanist,1959
4. The Cretaceous megaspore genus Arcellites Miner;ELLIS;Micropaleontology,1964