Aculifera
Clade of molluscs
From Wikipedia, the free encyclopedia
Aculifera (older name: Amphineura) is a clade of molluscs incorporating those groups that have no conch or shell, that is, the Polyplacophora, Caudofoveata and Solenogastres.[1] It is a sister group to the Conchifera. Monophyly of Aculifera is supported by fossil, anatomical and molecular studies.[2]
| Aculifera Temporal range: | |
|---|---|
| |
| A polyplacophoran (chiton) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Clade: | Aculifera Hatschek, 1891 |
| Classes | |
The oldest known aculiferan is Qaleruaqia, which was found in the Aftenstjernesø Formation in Greenland, which dates back to the Cambrian Stage 4.[3]
