82 ON THE GEOLOGY AND NATURAL HISTORY 
CATALOGUE OF CRETACEOUS FOSSILS, continued. 
Ammonites Halli, M. & H. March 1856, Pr. Acad. Nat. Sci. Phil. 70, 
Ammonites placenta, Dekay, 1827, New York si Nat. ii, oy 5, fig. 2. ne 
A. placenta Leckenby, 1858.) 5 : 
Ammonites placenta, var. intercalaris, M. & H. Pr. Acad. Nat. Sci. Phil. 177, 
Ammonites lobatus, Tuomey, 1854, Pr. Acad. Nat. Sci. Phil. vii, 168, . 
ees lenticularis, Owen, 1852. Report Iowa, Wiscon. and Min. tab. 8, fig. 
5. (Non A. lenticularis of Phillips, 1825.) 
Scaphites Mandanensis, Morton sp. 
Ammonites Mandanensis, Morton, 1841, Jour. Avel, Nat. Sat Phil. viii, 208, a 
10, fig. 2. 
Scaphites Mandanensis, Meek & Hayden, Nov. 1836, Pr. Acad. Nat. Sci. Phil. 
281. 
Seaphites abyssinus, Morton sp. 
Scaphites Mandanensis ? Meek & eiaedest Nore 1836, ers cael Nat. Sci. “Phil 
281. 
Scaphites Che yennensis, Owen sp. 
Ammonites Nebrascensis, Owen, 1852. Report Wise! iowa aad Hf, al Vil, en 2. 
Ammonites Cheyennensis, Owen, “ ss s pl. viii, fig. 2. 
Anmonites Moreauensis, Owen, “ “ “ pl. vili, fig. 2. 
Scaphites Conradi (pars) Meek & Hayden, Noy. 1856, Pr. Acad. Nat. Sci. Phil. 
281. 
Scaphites Co nradi, Morton sp. 
Ammonites Conradi, Morton, 1834, Sener! Org. fem 39, pl Xvi, fg. 1, 2,3 
Ammonites Dane, dv’ Orbigny, 1850, Prodrom. de Paleont. ii, 213. 
Scaphites Conradi, d’Orbigny, 1850, @ ‘f 214, 
Scaphites Conradi, var. gulosus, Morton, sp.,. 0 
Ammonites var. gulosus, Morton, 1854, Synopsis Org. Rom, 39, wah Xvi, ae 2. 
Scaphites Nicoletii, Morton sp. 
Ammonites Nicoletti, Morton, 1841, Jour. Ne Nat. Ser Phil. viii, yh: x fig. 3. 
Scaphites comprimus (2), Owen, Reo Wiscon. Iowa and Min. tab. vii, fig. 4. 
Scaphites Nicoletii, Meek & Hayden, Noy. 1856, Proc. Acad. Nat. Sci. Phil. 281. 
Scaphites (Ammonites?) Was Ze 1852, cae Be Wiscon. and 
Min. 581, tab. viii, fie. 4 
Scaphites nodosus var. ple nus, M. & iL May 1860, Pr. inna Nat. Sci. Phil. 
177, . 
Scaphites nodosus var. brevis, Meek & i dln (ass. ) 
Scaphites nodosus var. quadrangulus, Meek & Hayden (MSS.) 
Scaphites nodosus var. exilis, Meek & Hayden, . : 
Scaphites larvzformis, M. & H. March 1856, Pr. Acad. Nat. Sci. Phil. 58, 
Scaphites Warreni, M. & H. May 1860, Pr. Acad. Nat. Sci. Phil. 177, 
Ancyloceras? uncus, Meek & Hayden, 
Ancyloceras (Hamites) uncus, M. & H. Pr. Acad. Nat. Sci. Phil. 56. 
Helicoceras Mortoni, Hall & Meek sp. 
Hamites Mortoni, Hall & Meek, 1854, Mem. Am. Acad Ants aa Sei. Vv. ‘N. Ss. 
pl. iv, fig. 3. 
Formations in ascending order. 
1 2 3 4 5 
% 
% * 
* 
x 
x * 
% 
* * 
* 
* 
x 
x 
