A "Palaeopascichnid" describes a multitude of elongate fossils made up of multiple sausage-shaped chambers. They appear only in Ediacaran sediments. Fossils of Palaeopascichnids consist of an occasionally branching series of globular or elongate chambers. These fossils started appearing in the

Vendian The Ediacaran Period ( ) is a geological period that spans 96 million years from the end of the Cryogenian Period 635 million years ago (Mya), to the beginning of the Cambrian Period 538.8 Mya. It marks the end of the Proterozoic Eon, and the ...

(late Ediacaran) about 580 million years ago. Fossils of Palaeopascichnids are found in

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and

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. Palaeopascichnid fossils are believed to be the first ever macroorganisms that show signs of an agglutinated skeleton.

Genera

Genera currently considered to belong to the group include: * Genus ''

Palaeopascichnus ''Palaeopascichnus'' is an Ediacaran fossil comprising a series of lobes, first originating before the Gaskiers glaciation; it is plausibly a protozoan, but probably unrelated to the classical ' Ediacaran biota'. Once thought to represent a tr ...

'' species: ''P. delicatus'' * Genus ''

Yelovichnus ''Palaeopascichnus'' is an Ediacaran fossil comprising a series of lobes, first originating before the Gaskiers glaciation; it is plausibly a protozoan, but probably unrelated to the classical 'Ediacaran biota'. Once thought to represent a trac ...

'' species: ''Y. gracilis'' * Genus '' Orbisiana'' species: ''O. simplex'' species: ''O. linearis'' *Genus '' Curviacus'' Species: ''C. ediacaranus''

References

Trace fossils Ediacaran life Ediacaran Prehistoric animal genera Fossil taxa described in 1972 Enigmatic prehistoric animal genera {{Ediacaran-stub

Genera

See also

References