. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. r 15 mm. Same locality as 7. Fusus remondii Gabb. Fronl view; altitude 41 mm. Pal. vol. 1, pi. 1 fig. 30. Common in Eocene (Tcjon formation and equivalents) on we [g. Til Same specimen as fig. 7. Magnified view of 8. Amauropsis alveatus Conrad. 165000. Front view of partial decorticated specimen: altitude 32 mm. Eocene, Rose Canyon, Ss Diego County. A characteristic Eocene 9. Morio {Sconsia) tuberculatus Gabb.
. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. r 15 mm. Same locality as 7. Fusus remondii Gabb. Fronl view; altitude 41 mm. Pal. vol. 1, pi. 1 fig. 30. Common in Eocene (Tcjon formation and equivalents) on we [g. Til Same specimen as fig. 7. Magnified view of 8. Amauropsis alveatus Conrad. 165000. Front view of partial decorticated specimen: altitude 32 mm. Eocene, Rose Canyon, Ss Diego County. A characteristic Eocene 9. Morio {Sconsia) tuberculatus Gabb. 164999. Front view of 2 imperfect and decorticated specimen; altitude 27 mm. Eocene, Roi Canyon. San Diego County. Perfect specimens have an anteriorly plica plate over the inner lip; outer lip crenulate; revolving lines on surfacFig. 10. Cylichna costata Gabb. 165001. Front view of slightly imperfe specimen; altitude is mm., twice natural size. Eocene, Hose Canyoi San Diego County. Common in the Eocene (Martinez and Tejon form: lions and equivalents). 224 BULLETIN NO. 309 PL. XXVI .A. * 6 * I ini hvv. ,, ,• wl
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