†class Marrellomorpha Beurlen 1930

Sister taxa: none

Subtaxa: none

Distribution:

• Quaternary of the United Kingdom (1 collection)

• Pliocene of Belgium (1)

• Silurian of the United Kingdom (1)

• Ordovician of Canada (1: Ontario), the Czech Republic (1), Morocco (1), the United Kingdom (1)

• Delamaran of Canada (25: British Columbia)

• Cambrian of Canada (3: Brithish Columbia, British Columbia), China (1)

Total: 36 collections each including a single occurrence

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