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| Tribrachidium heraldicum Temporal range: Ediacaran,
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| Fossil of Tribrachidium heraldicum | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | †Trilobozoa |
| Family: | †Tribrachididae Runnegar, 1992 |
| Genus: | †Tribrachidium Glaessner, 1959 |
| Species: | †T. heraldicum
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| Binomial name | |
| †Tribrachidium heraldicum Glaessner, 1959
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| Synonyms | |
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Tribrachidium heraldicum is a tri-radially symmetric fossil animal that lived in the late Ediacaran (Vendian) seas. In life, it was hemispherical in form. T. heraldicum is the best known member of the extinct group Trilobozoa.[citation needed]
- ^ Fedonkin, M. A. (1980). "New representative of the Precambrian coelenterates in the northern Russian platform". Paleontologicheskii Zhurnal. 5: 7–15.
- ^ Ivantsov, A. Yu.; Zakrevskaya, M. A. (2021). "Trilobozoa, Precambrian Tri-Radial Organisms". Paleontological Journal. 55 (7): 727–741. Bibcode:2021PalJ...55..727I. doi:10.1134/S0031030121070066. S2CID 245330736.