Excellently preserved spiders, conchostracans, ostracods, gastropods, pelecypods, fresh-water bryozoans, fishes, bird feathers, and diverse plant remains are also known from this site.
22.
Later, in the Oligocene epoch Georgia was home to animals like corals as well as a variety of pelecypods ( at least 13 ) and gastropods ( at least 11 ).
23.
During the Cretaceous the region now occupied by the northern Cascade Mountains and the San Juan Islands were home to creatures like cephalopods with both coiled and uncoiled shells as well as pelecypods.
24.
In nearly recent times the biota of Indiana included dire wolves, gastropods, mammoths, mastodons, pelecypods, plants ( which left both body and pollen fossils ), and saber-toothed cats.
25.
There are many fossils to be found in this area from approximately 500 million years ago ( in a time before dinosaurs ) including coral, crinoids, trilobites, cephalopods, gastropods, pelecypods, stromatolites, and brachiopods.
26.
Genus Trachytoechus from the Helderberg of Schoharie, New York : Wagner Free Institute of Science .------ The Pelecypod genus Vlasta in the Ordovician of North America : Journal of Paleontology, v . 25.
27.
Half of echinoids and most pelecypods hide under the sand, leaving scientists to believe one of two options : the humphead wrasses rely on fish excavators like stingrays, or they themselves excavate by ejecting water and nosing around to look for prey.
28.
Into the Devonian, there were a small number of ammonoids, conodonts, tabulate corals, tetracorals, abundant crinoids, a moderate number of nautloids ( with both straight and coiled shells ), abundant pelecypods, abundant stromatoporoids, and trilobites.
29.
Among the larger organisms, the sea anemone " Metridium ", the bryozoan " Membranipora ", the barnacle " Balanus amphitrite ", and the amphipods, gastropods, mussels, pelecypods, annelids, and polychaetes.
30.
"Who's to say that volunteering isn't fun ? " asks Trudy Defoyd, whose 4-year-old son Devon is finding gryphea ( oyster ), pelecypod ( clam ) and echinoid ( sea urchin ) fossils like the other kids.
