Sample Detail of
Sample: Sample No. 28AMF33 -- USGS No. Mesozoic loc. 14496
Locality: Field No. 28AMF33
Description: F. H. Moffit, 1928. 0.8 km east of McCarthy Creek on mountain slope south of second tributary north of Dimond Creek, sec. 31, T. 3 S., R. 15 E., McCarthy (C-5) Quadrangle, Wrangell Mountains, southern Alaska. Root Glacier Formation. Dark-gray shale, probably 305-610 m above base of formation. Late Kimmeridgian. (description from Imlay, 1981, USGS PP 1190, p. 23); [USGS Mesozoic Catalogue: Orig. no. 28-F32 (14495).]
Location: Alaska Quadrangle: Mc Carthy C-5
Reference
Title: Late Jurassic Ammonites from Alaska ,  1981
Report by: Ralph W. Imlay
Age: Kimmeridgian (late Kimmeridgian)
Formation: Root Glacier Formation
Comment:Shown as loc.. 5 on Fig. 1; also shown on Figure 3 and Table 4

The exact stratigraphic positions of most of these ammonite fossil localities (table 4) in relation to the base of the Root Glacier Formation is not determinable because of faulting and folding. Nonetheless, Mesozoic loc. 28577 is about 250 feet (76 m) above the base; Mesozoic locs. 14495, 14496, 14497, and 28578 are probably 1,000 to 2,000 feet (303 to 606 m) above the base; and Mesozoic loc. 28579 is about 1,500 feet (454 m) above the base. (from Imlay, 1981, p. 16)

Amoeboceras (Prionodoceras) sp. A. is associated with Buchia mosquensis (von Buch) at USGS Mesozoic locs. 14495, 14496, and 28700. It is also associated with Buchia concentrica (Sowerby) at Mesozoic locs. 14495 and 14496. (from Imlay, 1981, p. 35)

Occurrence(s)
No. Group Name Qty Notes
1 Bivalves Buchia concentrica (Sowerby)
2 Bivalves Buchia mosquensis (von Buch)
3 Ammonoids Amoeboceras (Prionodoceras) sp. A specimen from this locality illustrated on Pl. 12, figs. 3-4
4 Ammonoids Amoeboceras (Prionodoceras) sp. B rubber cast of external mold from this locality illustrated on Pl. 12, fig. 15