Fig. 35 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. 35. Top. Size histogram of a sample of Eubaculites carinatus (Morton, 1834), Pinna Layer, Tinton Formation, Manasquan River Basin, central Monmouth County. Nearly all of the specimens are fragments of juvenile body chambers with some exceptions, notably the two largest specimens (AMNH 50766 and MAPS A2058b1), which are presumably mature macroconchs. Bottom. Scatter plot of whorl width versus height in intercostal section in the same sample of E. carinatus. All measurements are at the adoral ends of the specimens. The Xs and Os represent measurements through the ontogeny of AMNH 50766 and MAPS A2058b1, respectively (the open circles indicate the septate portion of MAPS A2058b1; AMNH 50766 is completely septate.) The triangle represents another large body chamber (MAPS A2058b2), presumably a macroconch.