Bilateria

(redirected from Bilaterian)

Bilateria

[‚bī·lə′tir·ē·ə]
(zoology)
A major division of the animal kingdom embracing all forms with bilateral symmetry.
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References in periodicals archive ?
Assessing the root of bilaterian animals with scalable phylogenomic methods.
Catecholic Compounds in Ctenophore Colloblast and Nerve Net Proteins Suggest a Structural Role for DOPA-Like Molecules in an Early-Diverging Animal Lineage
A comprehensive analysis of bilaterian mitochondrial genomes and phytogeny.
COMPLETE MITOCHONDRIAL GENOMES OF TWO PEARL OYSTER SPECIES (BIVALVIA: PTERIOMORPHIA) REVEAL NOVEL GENE ARRANGEMENTS
What is known is that the creatures burrowed as well as walked, were "bilaterian" - meaning they had pairs of matching appendages - and appear to have been on the clumsy side.
'Oldest footprints on Earth'
All that the prints suggest was they were formed by some kind of bilaterian animal which had multiple paired appendages, like arthropods and annelids, to raise its body above the water-sediment interface.
Oldest Footprints On Earth Left By Mysterious Animal
The genomes of several different bilaterian organisms, including model animals such as mammals, worms, flies, sea urchins, and ascidians, indicate that they all share common extracellular matrix (ECM) components.
Extracellular Matrix Components in Bivalvia: Shell and ECM Components in Developmental and Adult Tissues
Phylogenomic analysis shows that between divergence of ctenophores and cnidarians, the simple porifera and placozoa phyla branch off; this body plan simplification is also observed in divergence of bilaterian phyla [59-61].
Phenotypic Nonspecificity as the Result of Limited Specificity of Transcription Factor Function
The dawn of bilaterian animals: the case of the acoelomorph flatworms.
Microturbellarians (Platyhelminthes and Acoelomorpha) in Brazil: invisible organisms?/Microturbelarios (Platyhelminthes e Acoelomorpha) no Brasil: organismos invisiveis?
This mechanism of transcriptional regulation provides a plausible explanation for the conservation of this bi-gene cluster among the bilaterian animals.
Gene regulatory systems that control gene expression in the Ciona embryo
The biological identity of these burrowing organisms is unknown, although they were clearly bilaterian.
The fossil record of the Cambrian "explosion": resolving the tree of life
Using Hydra rhodopsin as an outgroup, we can only infer metazoan ancestral rhodopsin states as early as in bilaterian ancestors.
The evolutionary relationship between microbial rhodopsins and metazoan rhodopsins
Along with other U of A researchers, the team determined that the tracks were made by a primitive animal called a bilaterian, which is distinguished from other non-animal, simple life forms by its symmetry-its topside is distinguishable from its bottom side-and a unique set of 'footprints'.
Animals existed 30mn years earlier than thought
Evidence for the presence of a cellulase gene in the last common ancestor of bilaterian animals.
Digestive Cellulose Hydrolyzing Enzyme Activity (endo- b-1, 4- D-glucanase) in the Gut and Salivary Glands of Blister Beetle, Mylabris pustulata

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