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 cs Nat. ii, ee 5, fig. 2. ue 
A. placenta Leckenby, 1858.) 
Ammonites placenta, var. Sitebedsinss M. 1 H. Pr, aad Nat. Sei. Phil 17 1 
Ammonites lobatus, Tuomey, 1854, Pr. Acad. Nat. Sci. Phil. vii, 168, 
Ammonites lenticularis, Owen, 1852. Report Iowa, Wiscon. and Min. ay 8, fig. 
Non A. lenticularis of Phillips, 1825.) 
Scaphites Mandanensis, Morton s 
rsa Nae Mandanensis, Morton, 1841, Jour. Rel Nat. Sci. Phil. viii, 208, af. 
10, fig. 
Scaphites bien Meek & Hayden, Noy. 1836, Pr. Acad. Nat. Sci. Phil. 
Scaphites abyssinus, Mort 
Scaphites Mandanensis ? Meck & mien Row: 1836, Pr. vere Nat. Sci. “Phil. 
Scaphites Che yennensis, Owen sp. : 
Ammonites Nebrascensis, Owen, — epar Wise. iouw and Min. ‘t vii, 2 2. 
Ammonites Cheyennensis, — pl. viii, fig. 2. 
Ammonites Moreauensis, O = 2s . . pe or 
—— Conradi (pars) Meck & Hayden, Nov. 1856, Pr. Acad. Nat. Sci. Phil. 
ie Conradi, Morton sp. 
Ammonites Conradi, Racin 1834, dicing. Org. “thew 39, a xvi, 5, te 1, 2, ‘3. 
Ammonites Dane, a Orbigny, 1850, Prodrom. de irc ii, 213, 
Scaphites Chbead, d’Orbigny, 1850, . 214. 
Scaphites Conra di, var. gulosus, Morton, sp., ‘ 
Ammonites var. gulosus, Morton, 1854, Bekcohia Oe: Sina, 39, st xvi, fig. 2. 
Seaphites Nic oletii, Morton sp. . 
Ammonites Nicoletii, Morton, 1841, Je our, is. Nat. Sci. Phil. Vii, a < fig. 3; 
Scaphites comprimus (?), Owen, Hepat Wiscon. Iowa and Min. tab. vii, fig. 4. 
Scaphites Nicoletii, Meck & Hayden, Nov. 1856, Proc..Acad. Nat. Sci. Phil. 281. 
Scaphites (Ammonites?) toe noe 1852, ote ie Wiscon. and 
Min. 581, tab. viii, fig. 4, ° 
Scaphites nodosus var. ic nus, M. & i. Ma 1860, Pr. heed Nat. Sci. Phil 
Scaphites nod osus var. b revi s, Meek & : Hayden (Mss. : aaa oe ore 
Scaphites nodosus var. quadrangulus, Meek & Hayden (MSS.) . . 
Scaphites nod osus var. exilis, Meek & Hayden, . 
Scaphites lary formis, M. & H. March 1856, Pr. Acad. Nat. Sci. ‘Phil. 58, 
Scaphites Warreni, M. & H. May 1860, Pr. Acad. Nat. Sci. Phil. 17 (Pea 
Ancyloceras ? uncus, Meek & Hayden, 
as (Hamites) uncus, M. & H. Pr. hod: Nat. Sei. Phil. 56. 
Helicoceras M ortoni, Hall & Meek 
oe co Hall & Meek, 1854, Mein. ‘hin; ive iste nnd Sei. v. N. s. 
Pp lv, . 
Formations in ascending order. 
a 
ee a age SER TESTE AIS BERS oe Sn boned ee Re eS et ye ea eae ee 
