GEOLOGICAL SURVEY

I10YLE.] NORTH AMERICAN MESOZOIC INVERTEBRATA. 29
Ammonites Continued.
chicoensis n. 8. Traek. (1856.)
Proc. Cal. Acad. Nat. Sci., vol. 1, 1st. od., p. 85, pi. 2,
figs. 1 aud la. San Francisco, 1854-1857. J. B.
Trask.
Formation : Upper Eocene [Cretaceous].
Location : Chico creek, Cal.
chicoensis (Trask) Gabb. (1864.)
Geol. Snr. Cal.,PaIoont., vol. 1,' pp. 68-69, pi. 13,
figs. 17,17a, 6. Phila., 1864. W.M.Gabb.
Formation: Cretaceous.
Location: Chico creek, Pence's and Kelly's
ranchos, twelve miles north of Oroville, Butte
county, Siskiyou mountains, Siskiyou county ;
Eancho do San Luis Gonzaga, Pacheco's pass,
Merced county, Cal.
colfaxii n. 8. Gabb. (1869.)
Am. Jour. Conch.; vol. 5, Phila., 1869-1870, pp. 7-8,
pi. 4, fig. 2 [andvol. 4. pi. 16.] Phila., 1870. Wm.
M. Gabb.
Formation : Jurassic.
Location: Cut of the Pacific railroad, station
2777, Sec. 53, one mile west of the town of Colfax
; Robinson's ferry, on the Stanislaus river,
Nevada.
complexus n. 8. H. & M. (1854.)
Mom. Am. Acad. Arts and Sci., vol. 5, u.s. pp. 394,
395, pi. 4, figs. la-/. Cambridge and Boston, 1885.
Hall & Meek.
Fonnation: Cretaceous.
Location : Great Bend of the Missouri.
complexus ? (H. & M.) Gabb.
(1864.) .
Geol. Sur. Cal., Paleont., vol. 1, p. 69. Phila.,
1864. W. M. Gabb.
Fonnation: Cretaceous.
Location: Folsom, Cal.
complexus(H. &M.) Meek. (1876.)
Rep. 17. S. (Jeol. Sur.Terr.; vol.9,pp.447-448,pi.
24,fig8.1a-c. AVash.,1876. F. B. Meek.
Formation : Cretaceous.
Location : Great Bend of the Missouri, below Fort
Pierre.
complexus var. sucieensis n. var.
Meek. (1861.)
Proc. Acad. Nat. Sci., Phila., for 1861, p. 317.
Phila., 1862. F.B.Meok.
Formation: Cretaceous.
Location : Sucia island, and at Komooks on Vancouver
island.
complexus ? var. suciaensis Meek.
(1876.)
Bull. 17. S. Geol. and Geogr. Sur. Terr., vol. 2,
No. 4, pp. 369-370, pi. 5, figs. 2,2a-c. Wash., 1876.
F. B. Meek.
. Formation : Cretaceoiis.
Location : "Komooks on Vancouver island, and
Sucia island.
complexus var. suciaensis (Meek)
Whiteaves. (1879.)
Geol. Sur.Can.; Mes. Foss., vol. 1, pt. 2, pp. 106-108.
Montreal, 1870. J.F. Whiteaves. '
Formation : Cretaceous.
'(location: Sucia islands; Northwest bay, Vancouver
island ; Trentriver, Vancouver island.
Ammonites Continued.
conradi n. s. Morton. (1834.)
Synop.Org.Rem.Crot.Gr. U. S., pp. 39-40, pi. 16,
figs. 1-3: pi. 19, fig. 4. Phila., 1834. S.G. Morton.
Formation : Cretaceous.
Location : Prairie Bluff, Alabama.
conradi Morton. (1841.)
Jour. Acad. Nat. Sci., Phila., vol. 8, 1st sor., 1839-
1842, p. 210. Phila., 1839-1842. S.G. Morton.
Formation : Cretaceous.
Location : Great Bend of the Missourhriver, Lat.
43° 40' N.
? cooperii n. s. Gabb. (1864.)
Geol. Sur. Cal., Paleont., vol. 1, pp. 69-70, pi. 44,
figs. 23, 23a. Phila., 1864. W. M. Gabb.
Formation: Cretaceous.
Location: Shaft west side of Point Loma, opposite
La Playa, San Diego, Cal.
cordiformis n. s. M. & H. (1858.)
Proc. Acad. Nat. Sci., Phila., for 1858, p. 57.
Phila., 1859.
Meek & Hayden.
Formation: Cretaceous.
Location: Southwest base of Black hills.
cordiformis M. & II. (1865.)
Paleont. upper Missouri, Smithson. Cont.Knowl.,
vol. 14, No. 172, pp. 122-123, pi. 5, figs. 2o-«.
Wash., 1805. Meek & Hayden.
Formation: Jurassic.
Location: Southwest base of the Black hills.
cordiformis (M. & H.) Whitfield.
(1880.)
Bop. Geol. Black Hills of Dakota, pp. 378-380, pi.
6, figs. 20-24. Wash., 1880. R. P. Whitfield.
Formation: Jurassic.
Location: Red water valley; also, on the tops of the
highest hills two miles south of the Belle
Fourche river, near Bear Lodge butte, Black
hills.
cordiformis var. distans. Whitfield.
(1880.)
' Rep. Geol. Black hills of Dakota, pp. 380-381, pi.
.6, fig. 25. Wash., 1880. K. P. Whitfield.
Formation: Jurassic.
Location: Two miles south of the Bello Fourcho
river, near Bear Lodge butte, Black hills.
- crenocostatus n. s. ? Whiteavee.
(1876.)
Geol. Sur. Can.; Mes. Foss., vol. 1, pt. 1, pp. 45-47,
pi. 9, figs. 2, 2a. Montreal, 1876. J. F. Whiteaves.
Formation: Cretaceous.
Lecatioa: Queen Charlotte islands.
(Whiteaves calls this a provisional name.)
delawarensisn.8. Morton. (1830.)
Am. Jour. Sci., 1st ser., vol. 18, p. 244, pi. 2, fig. 4.
New H»ven, 1830. S. U. Morton.
Formation: Ferruginous sahd [Cretaceous.]
Location: Chesapeake arid Delaware canal.
delawarensis Morton.. (1830.)
Jour. Acad. Nat. Sci., Phila., vol. 0, 1st ser., 1827-
1831, p. 194. Phila., 1827-1831. S. G. Morton.
Formation: Cretaceous.
Location: Deep Cut of the Chesapeake and Delaware
canal.