Van Mourik et al., 2001
From dinoflaj3
van Mourik, C.A., Brinkhuis, H. and Williams, G.L., 2001: Mid- to Late Eocene organic-walled dinoflagellate cysts from ODP Leg 171B, offshore Florida. In: Kroon, D., Norris, R.D. and Klaus, A. (editors), Western North Atlantic Palaeogene and Cretaceous palaeoceanography; Geological Society of London Special Publications, no.183, p.225-251.