invertebrates : mollusca
Phylum: Mollusca Mollusks are soft-bodied animals that usually have an internal or external shell.
Dating Rocks Using Fossils
Chapter 33 Part 1
invertebrates : chelicera
Fossils
Conceptual Analysis
PHYLUM MOLLUSCA (Molle= soft body). PHYLUM MOLLUSCA OVER 100,OOO LIVING SPECIES; MANY 1000’S OF FOSSIL SPECIES FOUND IN ALMOST ALL ENVIRONMENTS: MARINE,
PROTOSTOMES II MOLLUSKSARTHROPODS. MOLLUSKS Clams, snails, slugs, chitons, octopuses Clams, snails, slugs, chitons, octopuses Probably evolved early—after.
Invertebrates. Animal Phylogeny (compacted) Some Animal Phyla.
Phylum Molluska Over 50,000 speciesOver 50,000 species Coelomate, Protostomes, Bilaterally symmetricalCoelomate, Protostomes, Bilaterally symmetrical Mostly.
