All Ediacaran Problematic Fossils

Aspidella is an Ediacaran disk-shaped fossil of uncertain affinity.

Cyclomedusa is a circular fossil of the Ediacaran biota; it has a circular bump in the middle and as many as five circular growth ridges around it.

Palaeopascichnus is an enigmatic form from the Ediacaran, consisting of a series of lobes.

Hiemalora is a fossil of the Ediacaran biota, reaching around 3 cm in diameter, which superficially resembles a sea anemone.

Cephalonega stepanovi is a fossil organism from Ediacaran deposits of the Arkhangelsk Region, Russia.

Somatohelix is an extinct organism of uncertain affinities from the late Ediacaran of the Flinders Ranges in South Australia.

Mawsonites is a fossil genus dating to the Ediacaran Period, from 635-539 million years ago during the Precambrian era.

Harlaniella is an enigmatic extinct organism from the late Ediacaran of Europe and the early Cambrian of California.

Curviacus is a genus of Ediacaran organism of uncertain lineage that displays a modular body plan consisting of crescent-shaped chambers.

Arumberia is an enigmatic fossil from the Ediacaran period originally described from the Arumbera Sandstone, Northern Territory, Australia but also found in the Urals, East Siberia, England and Wales, Northern France, the Avalon Peninsula, India and Brazil.

Noffkarkys ("net of Noffke") is a genus of problematic fossil first found in the Ediacaran (550 million years old) Grant Bluff Formation of Central Mount Stuart, Northern Territory, Australia, and another prostrate frond-like fossil.

Margaritiflabellum is an extinct enigmatic organism from late Ediacaran of Russia.