Definition of Urbilaterian. Meaning of Urbilaterian. Synonyms of Urbilaterian

- The urbilaterian (from German ur- 'original') is the hypothetical last common ancestor of the bilaterian clade, i.e., all animals having a bilateral symmetry...
- indicated with dashed lines. Embryological origins of the mouth and **** Urbilaterian, a hypothethical common ancestor to Protostomes and Deuterostomes Hejnol...
- hypothetical most recent common ancestor of all bilateria is termed the "Urbilaterian". The nature of the first bilaterian is a matter of debate. One side...
- cord. It has been suggested that the hindbrain first evolved in the urbilaterian—the last common ancestor of chordates and arthropods—between 570 and...
- explanation leads to the formation of the bilaterian body plan; the urbilaterian would develop its symmetry when one end of the placula became adapted...
- layers (ecto- and endoderm). Photoreceptive eye-spots evolve. 650-600 Ma Urbilaterian: the last common ancestor of xenacoelomorphs, protostomes (including...
- wormlike ancestor that lived around 600 million years ago, called the urbilaterian. A bilaterian animal is one that has symmetrical left and right body...
- S2CID 4366885. Lichtneckert R, Reichert H (May 2005). "Insights into the urbilaterian brain: conserved genetic patterning mechanisms in insect and vertebrate...
- (27 April 2008). "Acoel development supports a simple planula-like urbilaterian". Philosophical Transactions of the Royal Society B: Biological Sciences...
- photo-sensitive proteins and fall into nine groups, which already existed in the urbilaterian, the last common ancestor of all bilaterally symmetrical animals. Additionally...