Parvancornia minchami
Precambrian
Penega Formation
East Angelsk, White Sea Russia

7mm on 74mm slab. First we have had in many years. From an old academic collection.

Parvancorina is an extinct genus of small, shield-shaped animals from the Ediacaran period, which predates the Cambrian period and dates back to around 555 million years ago. These organisms are characterized by their distinctive shield-like shape with a raised central ridge and radiating grooves. Parvancorina is typically found in fossil beds known for preserving a diverse array of soft-bodied organisms from the Ediacaran biota.

The exact classification and ecological role of Parvancorina are subjects of ongoing scientific research and debate. Some researchers have suggested that it might be related to early arthropods or other primitive bilaterian animals, but its precise affinities remain uncertain. The fossils of Parvancorina are significant because they provide insights into the early evolution of multicellular life and the diversity of forms that existed before the Cambrian explosion.