Placozoa (/plækəˈzoʊə/ PLAK-ə-ZOH-ə, "flat animals") is a phylum of marine and free-living (non-parasitic) animals. They are simple blob-like animals without...
56 KB (5,755 words) - 21:47, 10 June 2024
Trichoplax (category Placozoa)
species in the phylum Placozoa. The others are Hoilungia hongkongensis, Polyplacotoma mediterranea and Cladtertia collaboinventa. Placozoa is a basal group...
42 KB (5,386 words) - 21:46, 3 June 2024
Parazoa (section Porifera and Placozoa)
extinct sponges sometimes considered a separate phylum. In other cases, Placozoa is included, depending on the authors. Porifera and Archaeocyatha show...
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lines. The most basal animals, the Porifera, Ctenophora, Cnidaria, and Placozoa, have body plans that lack bilateral symmetry. Their relationships are...
125 KB (11,182 words) - 08:37, 6 June 2024
ParaHoxozoa (or Parahoxozoa) is a clade of animals that consists of Bilateria, Placozoa, and Cnidaria. The relationship of this clade relative to the two other...
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(jellyfish, hydrae, sea anemones and corals), Ctenophora (comb jellies) and Placozoa (tiny "flat animals"). For the most part, bilateral embryos are triploblastic...
35 KB (2,518 words) - 17:33, 27 May 2024
(sponges). The basal eumetazoan clades are the Ctenophora and the ParaHoxozoa. Placozoa is now also seen as a eumetazoan in the ParaHoxozoa. The competing hypothesis...
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List of animal classes (section Placozoa)
Schierwater, Bernd (2022-12-08). "Phylogenomics and the first higher taxonomy of Placozoa, an ancient and enigmatic animal phylum". Frontiers in Ecology and Evolution...
8 KB (503 words) - 14:04, 11 June 2024
Cavalier-Smith, in 1983, redefined Radiata as a subkingdom consisting of Myxozoa, Placozoa, Cnidaria and Ctenophora. Lynn Margulis and K. V. Schwartz later redefined...
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Planulozoa is a clade which includes the Placozoa, Cnidaria (corals and jellyfish) and the Bilateria (all the more complex animals including worms, insects...
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Porifera, Diploblasts Diploblasts: Ctenophora, ParaHoxozoa ParaHoxozoa: Placozoa, Cnidaria, Bilateria/Triploblast Bilateria: Xenacoelomorpha, Nephrozoa...
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more derived phyla, i.e. the bilaterians. The less-advanced taxa (i.e. Placozoa, Porifera, Ctenophora and Cnidaria) do not show consolidation of their...
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the main components of nervous tissue in all animals except sponges and Placozoa. Non-animals like plants and fungi do not have nerve cells. Molecular evidence...
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to a subkingdom of three small phyla of simple animals without organs, Placozoa, Orthonectida, and Rhombozoa. They are known as "simple" though they have...
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the blastula, during embryonic development. Subkingdom Parazoa Porifera Placozoa Subkingdom Eumetazoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked)...
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Cladtertia (category Placozoa)
Schierwater, Bernd (2022-12-08). "Phylogenomics and the first higher taxonomy of Placozoa, an ancient and enigmatic animal phylum". Frontiers in Ecology and Evolution...
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List of sequenced animal genomes (section Placozoa)
This list of sequenced animal genomes contains animal species for which complete genome sequences have been assembled, annotated and published. Substantially...
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Gordian worms or horsehair worms (Nematomorpha) Ribbon worms (Nemertea) Placozoa Loricifera Starfishes, sea urchins, sea cucumbers, sea lilies and brittle...
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reported to exist in a wide variety of animal species, including protozoa, placozoa and cnidaria (jellyfish and related species), but not in ctenophores (comb...
59 KB (6,525 words) - 00:14, 31 May 2024
Hoilungia (category Placozoa)
genus that contains one of the simplest animals and belongs to the phylum Placozoa. Described in 2018, it has only one named species, H. hongkongensis, although...
11 KB (1,110 words) - 20:58, 23 May 2024
common than previously assumed. Coelentera may only be monophyletic if both Placozoa and Bilateria are included. In particular, the phylogenetic position of...
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sequencing reveals evidence of neuropeptide genes in Cnidaria, Ctenophora, and Placozoa, some of oldest living animals with nervous systems or neural-like tissues...
21 KB (2,312 words) - 08:18, 19 May 2024
Marine life (section Placozoa)
non-vertebrate organisms. The earliest animal phyla are the Porifera, Ctenophora, Placozoa and Cnidaria. No member of these clades exhibit body plans with bilateral...
304 KB (29,027 words) - 03:21, 16 May 2024
analyses using a wider range of sponges and other simple Metazoa such as Placozoa. However, reanalysis of the data showed that the computer algorithms used...
126 KB (12,975 words) - 09:40, 8 June 2024
Polyplacotoma (category Placozoa)
Polyplacotoma mediterranea is a species in the phylum Placozoa, only representative of the genus Polyplacotoma. They differ greatly from other species...
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Subphylum Anthozoa Subphylum Medusozoa Infrakingdom Placozoa Phylum Placozoa Subkingdom Myxozoa Phylum Myxosporidia Subkingdom Bilateria...
74 KB (4,802 words) - 07:04, 30 May 2024
Choanoflagellata Metazoa (Animalia) Porifera Ctenophora Placozoa Cnidaria Xenacoelomorpha Ambulacraria Chordata Protostomia...
20 KB (1,419 words) - 08:46, 18 May 2024
classes, extinct Phoronida Zeus's mistress Horseshoe worms U-shaped gut 11 Placozoa Plate animals Trichoplaxes: 242 Differentiated top and bottom surfaces...
60 KB (4,154 words) - 19:38, 28 May 2024
Uniplacotomia (category Placozoa)
Schierwater, Bernd (2022-12-08). "Phylogenomics and the first higher taxonomy of Placozoa, an ancient and enigmatic animal phylum". Frontiers in Ecology and Evolution...
2 KB (161 words) - 15:42, 3 June 2023