| Metazoa | ![]() |
Bivalvia |
| MOLLUSCA | Bivalve
Shell Morphology |
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MOLLUSCA BASAL MOLLUSCA |--Diasoma | |--Rostroconchia | `--BIVALVIA | |--Protobranchia | `--HETERODONTA `--CYRTOSOMA |--CEPHALOPODA `--GASTROPODA |--Eogastropoda `--APOGASTROPODA |--Caenogastropoda `--HETEROBRANCHIA |--Opisthobranchia `--PULMONATA |
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see glossary for more
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