1. GASTROPODA CLASS

2. Gaster : Stomach podos : Feet. Gastropoda derived from the word=
So, Gastropoda , is the animal that have flabby body. Walking with the stomach which in this case called the foot
Some examples of Gastropoda is bekicot (Achatina fulica), fresh water snail (Lemnaea javanica), sea snail (Fissurella sp), and snail intermediary fasciolosis (Lemnaea trunculata).

3. The characteristics of Gastropoda
The biggest class of the Phylum Mollusca, with the characteristics:
Living in sea water & brackish water
House consisted of a test that terputar (terpilin) sweep through the axis
Body consists of head, feet and equipment digestion
Head equipped with the tools pengunyah called the mantle cavity (functioning as a gill in sea water & works as the lungs in the land environment
Test consists of substances Gampingan terputar the spiral and one straight line through the (lap involut & evolut)
Direction gastropoda lap test consists of Dextral (clockwise) & Sinistral (opposite clockwise round)
The characteristics of Gastropoda

4. 1 - umbilicus 2 - parietal callus 3 - aperture 4 - columella 5 - suture 6 - whorl 7 - apex

5. Kepentingan Dalam Geologi Khususnya Stratigrafi
Gastropoda developing quite well in the tropics. Some species will characterize a particular layer.
Ostingh, a paleontology experts have successfully set up stratigrafi Neogen Java is based on fossil gastropoda index.

6. Levels Rembang (Miosen Down)
Characterized by: Turritella subulata
Preanger levels (Miosen Central)
Characterized by: Turritella angulata, Siphocyprea caput viperae
Cirodeng levels (Miosen Top)
Characterized by: Turritella angulata cr
Levels of Cirebon (Pliosen Down)
Characterized by: Turritella angulata ac
Levels Sunda (Pliosen Top)
Characterized by: Terebra insulinidae
Levels Banten (Pleistosen Down)
Characterized by: Clavus malingpingensis