Metazoa		Cyrtosoma
MOLLUSCA		Cyrtosoma

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Cyrtosoma

MOLLUSCA  
BASAL MOLLUSCA  
|--Diasoma
|  |--Rostroconchia
|  `--BIVALVIA  
|     |--Protobranchia  
|     `--HETERODONTA  
`--CYRTOSOMA  
   |--+--Scaphopoda  
   |  `--Cephalopoda  
   |     |--Nautiloidea
   |     `--Neocephalopoda  
   |        |--Ammonoidea  
   |        `--Coleoidea  
   |           |--Decapodiformes  
   |           `--Vampyropoda  
   `--GASTROPODA  
      |--Eogastropoda  
      `--APOGASTROPODA
         |--Caenogastropoda
         `--HETEROBRANCHIA
            |--Opisthobranchia
            `--PULMONATA

Unit Contents

Cyrtosoma
Scaphopoda
CEPHALOPODA
NAUTILOIDEA
COLEOIDEA

Page Contents

Introduction

Cyrtosoma is the crown group slugs + squids. This page is a placeholder -- while we try to come up with really convincing reasons why we chose the Cyrtosoma hypothesis of molluscan relationships.

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