Yorgiidae Explained

Yorgiidae is an extinct family of cephalozoans, which lived 635 million years ago.^[1] They were filter fed.^[2]

Description

Like most proarticulates, they present semi-bilateral symmetry. They had a discoid appearance, with the body segmented by isomers.

Distribution

Ediacaran of Russian Federation and South Australia.^[1]

See also

• Cephalozoa

Notes and References

1. https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=342812&is_real_user=1 Distribution age in the paleontology database
2. Budd. Graham E.. Jensen. Sören. 2017. The origin of the animals and a 'Savannah' hypothesis for early bilaterian evolution. Biological Reviews. en. 92. 1. 446–473. 10.1111/brv.12239. 26588818 . 1469-185X. 10662/8091. 39110115 . free.