Fig. 18 in CEPHALOPODS FROM THE CRETACEOUS/TERTIARY BOUNDARY INTERVAL ON THE ATLANTIC COASTAL PLAIN, WITH A DESCRIPTION OF THE HIGHEST AMMONITE ZONES IN NORTH AMERICA. PART III. MANASQUAN RIVER BASIN, MONMOUTH COUNTY, NEW JERSEY

Fig. 18. Dinoflagellates from the upper part of the Tinton Formation and lower part of the Hornerstown Formation, Manasquan River Basin, Monmouth County, New Jersey. A, H, K. Glaphyrocysta expansa (Corradini, 1973) Roncaglia & Corradini, 1997 (? 5 G. perforata sensu Schiøler et al., 1997), R6416A, Pinna Layer, AMNH loc. 3335, 4.3 km southwest of Freehold, Monmouth County. A. Ventral view of ventral ectophragm; H. ventral view of ventral surface; K. ventral view of dorsal surface. B–D. Florentinia ferox (Deflandre, 1937) Duxbury, 1980, R6416A, Pinna Layer, AMNH loc. 3335, 4.3 km southwest of Freehold, Monmouth County. B. Ventral view of ventral surface; C. ventral view at midfocus; D. ventral view of dorsal surface. E–G. Cribroperidinium sp. (species group includes the C.