List of bilateral animal orders contains the Bilateria of the animal subkingdom Eumetazoa, divided into four superphyla, Deuterostomia, and the three...
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hemichordates. The nature of early attachment structures has implications for the debate over whether the earliest bilaterian was sedentary. While no tubes...
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Xenacoelomorpha (category Bilaterian phyla)
Xenacoelomorpha (/ˌzɛnəˌsɛloʊˈmɔːrfə/) is a small phylum of bilaterian invertebrate animals, consisting of two sister groups: xenoturbellids and acoelomorphs...
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Flatworm (category CS1 maint: multiple names: authors list)
ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates. Being acoelomates...
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Phylum (redirect from List of animal phyla)
G. E.; Jensen, S. (May 2000). "A critical reappraisal of the fossil record of the bilaterian phyla". Biological Reviews. 75 (2): 253–295. doi:10.1111/j...
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Nemertea (category CS1 maint: multiple names: authors list)
"Hox and ParaHox genes in Nemertodermatida, a basal bilaterian clade". International Journal of Developmental Biology. 50 (8): 675–9. doi:10.1387/ijdb...
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fossil organism an early bilaterian? Tullimonstrum: a taxonomic position of this fossil organism is unknown. Adult form of Planctosphaera pelagica, a...
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Chordate (section History of name)
Erwin, Douglas H.; Eric H. Davidson (1 July 2002). "The last common bilaterian ancestor". Development. 129 (13): 3021–3032. doi:10.1242/dev.129.13.3021...
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cnidarians and bilaterians. Pisani et al. reanalyzed the data and suggested that the computer algorithms used for analysis were misled by the presence of specific...
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Annelid (redirect from Evolutionary history of annelids)
"Evolution of the bilaterian body plan: What have we learned from annelids?". Proceedings of the National Academy of Sciences of the United States of America...
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Marine life (redirect from Fauna of the ocean)
of the earliest bilaterians were wormlike, and the original bilaterian may have been a bottom dwelling worm with a single body opening. A bilaterian body...
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Cestoda (category CS1 maint: multiple names: authors list)
earliest example of a Platyzoan and also one of the earliest bilaterian body-fossils and might thus provide an insight to the living mode of Cestodians before...
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Geologic time scale (redirect from Age of rock)
Geology of Mars Geon (geology) Graphical timeline of the universe History of Earth History of geology History of paleontology List of fossil sites List of geochronologic...
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Fossil (redirect from List of fossils)
Synchrotron X-ray tomographic analysis of early Cambrian bilaterian embryonic microfossils yielded new insights of metazoan evolution at its earliest stages...
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Brachiopod (category CS1 maint: multiple names: authors list)
Jensen, S (May 2000). "A critical reappraisal of the fossil record of the bilaterian phyla". Biological Reviews of the Cambridge Philosophical Society. 75 (2):...
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Lophotrochozoan bilaterians, such as flatworms, ribbon worms, lophophorates, and molluscs. Bryozoans – half of all documented species of Bryozoa are fossils...
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Invertebrate (section Number of extant species)
Baguñà, Jaume (March 1999). "Acoel Flatworms: Earliest Extant Bilaterian Metazoans, Not Members of Platyhelminthes". Science. 283 (5409): 1919–1923. Bibcode:1999Sci...
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J.Q. (September 2002). "The Radiata and the evolutionary origins of the bilaterian body plan". Molecular Phylogenetics and Evolution. 24 (3): 358–365...
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Halwaxiida (category CS1 maint: multiple names: authors list)
organisms from which bilaterians evolved, and the earliest bilaterians had similar sclerites. However, there are no fossils of such sclerites before...
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Neuroanatomy (redirect from History of neuroanatomy)
sympathetic and parasympathetic, which are important for transmitting motor orders to the body's basic internal organs, thus controlling functions such as...
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Bryozoa (section Types of zooid)
epidermis and mesoderm, while in other bilaterians some organs including the gut are built from endoderm. In most bilaterian embryos the blastopore, a dent in...
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Xenophyophorea (category CS1 maint: multiple names: authors list)
researchers suggest that Dickinsonia and relatives are instead stem-bilaterians. Other ediacaran fossils, such as Palaeopascichnus Intrites, Yelovichnus...
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Marine microorganisms (section Role of viruses)
Graham E; Jensen, Sören (2017). "The origin of the animals and a 'Savannah' hypothesis for early bilaterian evolution". Biological Reviews. 92 (1): 446–473...
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Xunlai; Xiao, Shuhai (6 June 2018). "Late Ediacaran trackways produced by bilaterian animals with paired appendages". Science Advances. 4 (6): eaao6691. Bibcode:2018SciA...
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Lobata Order Platyctenida Order Thalassocalycida The authors divide the bilaterians in three informal groups: acoelomates (phyla Platyhelminthes, Gastrotricha...
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2018 in paleontology (category CS1 maint: DOI inactive as of February 2024)
first reliable occurrence of abundant penetrative trace fossils, providing trace fossil evidence for Precambrian bilaterians with complex behavioural patterns...
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2021 in paleontology (category CS1 maint: numeric names: authors list)
Li, D.; Donoghue, P. (2021). "Exceptionally preserved early Cambrian bilaterian developmental stages from Mongolia". Nature Communications. 12 (1): Article...
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