Tribrachidium – a three-lobed organism

(try-brack-id-ee-um)

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Model of Tribrachidium.
Image: Benjamin Healley
Source: Museum Victoria

Fossil of Tribrachidium.
Image: Jon Augier
Source: Museum Victoria

Ediacaran

HOW BIG IT WAS

Tribrachidium relative size depiction as described below
Tribrachidium had a radius up to 5 cm and was about 5–10 cm high.

Tribrachidium had a bizarre and unique body form with three planes of symmetry. The fossil impressions of these animals are circular and they show three curved lobes that encircle the animal in a spiral shape.

WHERE IT WAS FOUND

Tribrachidium map

This fossil of Tribrachidium was discovered in South Australia.

RELATED OBJECTS

Other objects from the Ediacaran

KimberellaCharnia SprigginaParvancorinaDickinsonia
Photograph of a yellow plastic Tyranasaurus Rex