Texas Fossils: An Amateur Collector's Handbook

by William Henry Matthews

STRAPAROLUS × 1 AMPHISCAPHA × 1 WORTHENIA × 1 TREPOSPIRA × 1 BELLEROPHON × 1 EUOMPHALUS × 1

Plate 21

[PENNSYLVANIAN] GASTROPODS

EUPHEMITES × 1 STROBEUS × 1 PLATYCERAS × 1

[CRETACEOUS] GASTROPODS
INTERNAL MOLDS

GYRODES × 1 LUNATIA × 1 TURRITELLA × 1 CERITHIUM × 1 TYLOSTOMA × 1 NERINEA × 1

Plate 22
[TERTIARY] GASTROPODS