   
Invertebrate Fossils OF NJ |
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Gastropods Gastropods, include such common forms such as snails, slugs, and whelks, occupy both marine and non-marine environments. Although many gastropods are herbivorous grazers, several groups appeared during the Cretaceous which were carnivores. They attacked clams and oysters by drilling into their shells or forcing them open with their thick muscular foot. Being such a large class, gastropods can be found in all the streams of Monmouth County. Over 100 different species of gastropods have been found in New Jersey.
These usually do not hold up well to stream wear.
Below are a few of
the more common Cretaceous gastropods from
Herbivore 7/8’s of an inch
Gyrodes abyssinus (Morton)
Pyropsis trochiformis (Tuomey)
Pyropis trochiformis
I find this one interesting, the top is open with a
spiral impression |
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