• Thumbnail for Placozoa
    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
  • Thumbnail for Trichoplax
    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
  • Thumbnail for Parazoa
    extinct sponges sometimes considered a separate phylum. In other cases, Placozoa is included, depending on the authors. Porifera and Archaeocyatha show...
    6 KB (661 words) - 17:19, 28 April 2024
  • Thumbnail for Animal
    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
  • Thumbnail for ParaHoxozoa
    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...
    16 KB (1,603 words) - 14:01, 23 May 2024
  • Thumbnail for Bilateria
    (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
  • Thumbnail for Eumetazoa
    (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...
    13 KB (1,211 words) - 00:37, 11 April 2024
  • 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
  • Thumbnail for Radiata
    Cavalier-Smith, in 1983, redefined Radiata as a subkingdom consisting of Myxozoa, Placozoa, Cnidaria and Ctenophora. Lynn Margulis and K. V. Schwartz later redefined...
    7 KB (591 words) - 23:49, 25 October 2023
  • Thumbnail for Planulozoa
    Planulozoa is a clade which includes the Placozoa, Cnidaria (corals and jellyfish) and the Bilateria (all the more complex animals including worms, insects...
    10 KB (836 words) - 16:24, 25 March 2024
  • Thumbnail for Lists of animals
    Porifera, Diploblasts Diploblasts: Ctenophora, ParaHoxozoa ParaHoxozoa: Placozoa, Cnidaria, Bilateria/Triploblast Bilateria: Xenacoelomorpha, Nephrozoa...
    8 KB (668 words) - 21:00, 29 May 2024
  • Thumbnail for Organ (biology)
    more derived phyla, i.e. the bilaterians. The less-advanced taxa (i.e. Placozoa, Porifera, Ctenophora and Cnidaria) do not show consolidation of their...
    21 KB (2,016 words) - 20:23, 24 May 2024
  • Thumbnail for Neuron
    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...
    78 KB (9,015 words) - 21:00, 21 May 2024
  • Thumbnail for Agnotozoa
    to a subkingdom of three small phyla of simple animals without organs, Placozoa, Orthonectida, and Rhombozoa. They are known as "simple" though they have...
    2 KB (213 words) - 17:32, 4 August 2023
  • the blastula, during embryonic development. Subkingdom Parazoa Porifera Placozoa Subkingdom Eumetazoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked)...
    11 KB (767 words) - 10:32, 20 February 2024
  • Thumbnail for Cladtertia
    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...
    3 KB (268 words) - 12:22, 7 January 2024
  • This list of sequenced animal genomes contains animal species for which complete genome sequences have been assembled, annotated and published. Substantially...
    369 KB (27,644 words) - 07:34, 6 May 2024
  • Thumbnail for Invertebrate
    Gordian worms or horsehair worms (Nematomorpha) Ribbon worms (Nemertea) Placozoa Loricifera Starfishes, sea urchins, sea cucumbers, sea lilies and brittle...
    43 KB (4,816 words) - 03:26, 7 June 2024
  • Thumbnail for Norepinephrine
    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
  • Thumbnail for Hoilungia
    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
  • Thumbnail for Coelenterata
    common than previously assumed. Coelentera may only be monophyletic if both Placozoa and Bilateria are included. In particular, the phylogenetic position of...
    7 KB (713 words) - 12:03, 29 April 2024
  • Thumbnail for Neuropeptide
    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
  • Thumbnail for Marine life
    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
  • Thumbnail for Sponge
    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...
    2 KB (191 words) - 08:59, 29 March 2024
  • Thumbnail for Kingdom (biology)
            Subphylum Anthozoa         Subphylum Medusozoa     Infrakingdom Placozoa       Phylum Placozoa   Subkingdom Myxozoa     Phylum Myxosporidia   Subkingdom Bilateria...
    74 KB (4,802 words) - 07:04, 30 May 2024
  •     Placozoa Porifera (sponges): Calcarea...
    234 KB (22,621 words) - 05:42, 5 June 2024
  • Thumbnail for Opisthokont
    Choanoflagellata Metazoa (Animalia) Porifera Ctenophora Placozoa Cnidaria Xenacoelomorpha Ambulacraria Chordata Protostomia...
    20 KB (1,419 words) - 08:46, 18 May 2024
  • Thumbnail for Phylum
    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
  • Thumbnail for Uniplacotomia
    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