Marrellomorph

Marrellomorph
Marrellomorph
Temporal range: Middle Cambrian–Lower Devonian
Scientific classification e
Kingdom: Animalia
Stem-group: Arthropoda
Class: Marrellomorpha
Orders

The Marrellomorphs are a clade of stem-group arthropods known from the Cambrian to the early Devonian. They lacked mineralised hard parts, so are only known from areas of exceptional preservation, limiting their fossil distribution.