''Aldanella'' is an extinct Paleozoic animal that was assigned to the

Gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

stem group but may also belong to a paraphyletic "

Monoplacophora Shell of Monoplacophora Monoplacophora , meaning "bearing one plate", is a polyphyletic class of molluscs with a cap-like shell, inhabiting deep sea environments. Extant representatives were not recognized as such until 1952; previously they wer ...

" or

Annelida The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to variou ...

References

Paleozoic life of Newfoundland and Labrador Paleozoic life of Nova Scotia Paleozoic molluscs of Europe Paleozoic molluscs of North America Prehistoric bivalves of North America {{paleo-mollusc-stub