Basic info Taxonomic history Classification Relationships
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Bilateria is an unranked clade.

It was synonymized subjectively with Triploblastica by Zrzavy et al. (1998).

It was assigned to Metazoa by Edgecombe et al. (2011); to Triploblastica by Nielsen (2012); and to Animalia by Ruggiero et al. (2015).

Sister taxa
Acoelomorpha, Dickinsoniomorpha, Eubilateria

View classification of included taxa

Synonymy list
YearName and author
2011Bilateria Edgecombe et al. p. 153 figs. Fig. 1
2012Bilateria Nielsen p. 62 figs. Fig. 4.2
2015Bilateria Ruggiero et al. p. 40

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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

No diagnoses are available
No measurements are available
No ecological data are available

Age range: base of the Pridoli to the top of the Kungurian or 423.00000 to 272.30000 Ma

Collections (2 total)

Time interval Ma Country or state Original ID and collection number
Pridoli423.0 - 419.2China (Xinjiang) Sciadophyton pristinum (10931)
Sakmarian - Kungurian295.5 - 272.3USA (Kansas) Eukaryota indet. (32659)