vaughan] SECTIONS IN VICINITY OF SAN CARLOS. 79 
Fossils from No. S (field No. 298). 
Pecten sp. 
Veniella sp. 
Cardium carolinese Conrad? 
Cardium sp. Cf. tenuistriatum Whitfield. 
Cyprimeria sp., same as that in No. 2. 
Mactra sp., related to M. warreneana M. & H. 
Mactra sp. 
Corbula sp. 
Dentalium sp. 
Gyrodes petrosa (Morton) . 
Anchura sp., large species related to A. abrupta Conrad. 
Pugnellus sp. 
Volutomorpha sp. 
Rostellites sp. 
Pyropsis trochiformis Tuomey?, apparently identical with the New Jersey 
form doubtfully referred to this species by Whitfield. 
Placenticeras guadalupse (Roemer) . Rare. 
Fossils from No. 2 (field No. 297). 
Exogyra costata Say, a variety intermediate between this species and E. 
ponderosa Roemer. 
Pecten sp. 
Avicula linguiformis E. & S. 
Inoceramus cripsi var. barabini Morton. 
Inoceramus proximus Tuomey. 
Inoceramus vanuxemi M. & H. 
Pinna sp. Cf. P. laqueata Conrad. 
Cucull?ea sp. 
Veniella sp. 
Cyprimeria sp. , related to C. alta Conrad. 
Pholadomya sp. 
Turritella trilira Conrad var. 
Anchura sp. 
Gyrodes sp. 
Strepsidura ? sp. 
Nautilus dekayi Morton. 
Placenticeras guadalupre (Roemer) . Abundant. 
Schloenbachia delawarensis (Morton) . 
Baculites asper Morton. 
Baculites ovatus Say ? 
Hamites ?, fragments of two species. 
Scaphites sp., related to S. nodosus, but a distinct species. 
'kit tiled section through coal seams at tunnel of mine No. 4 of San Carlos Coal Company, 
on vjcst slope of the Vieja Mountains, about 2 miles east of San Carlos. 
(PI. XI, fig. 2a.) 
In. Ft. 
i. Clay, thickness variable 13 to 3 
!. Upper coal seam (coal noncoking) 10 to 3 
. Clay, thickness variable 6 to 2 
>. Sandstone, thickness variable 2 to 7 
. Clay, sometimes present. 
. Lower coal seam, thickness variable 2 to 3 
