• Thumbnail for Protostome
    typically true of its sister clade, Deuterostomia. Well-known examples of protostomes are arthropods, molluscs, annelids, flatworms and nematodes. They are...
    11 KB (833 words) - 15:00, 23 October 2024
  • Thumbnail for Deuterostome
    distinguishing characteristic, but deuterostomy has since been discovered among protostomes as well. The deuterostomes are also known as enterocoelomates, because...
    35 KB (3,201 words) - 00:11, 28 October 2024
  • Thumbnail for Embryological origins of the mouth and anus
    basis for separating bilaterian animals into two natural groupings: the protostomes and deuterostomes. In animals at least as complex as an earthworm, a...
    7 KB (751 words) - 20:02, 17 August 2024
  • Thumbnail for Lophotrochozoa
    Lophotrochozoa (/ləˌfɒtroʊkoʊˈzoʊə/, "crest/wheel animals") is a clade of protostome animals within the Spiralia. The taxon was established as a monophyletic...
    15 KB (1,269 words) - 14:01, 1 October 2024
  • Thumbnail for Spiralia
    Spiralia (category Protostome unranked clades)
    The Spiralia are a morphologically diverse clade of protostome animals, including within their number the molluscs, annelids, platyhelminths and other...
    17 KB (1,351 words) - 08:31, 12 October 2024
  • Thumbnail for Bilateria
    the mouth in protostomes, and the anus in deuterostomes. Many taxonomists now recognize at least two more superphyla among the protostomes, Ecdysozoa (molting...
    36 KB (2,538 words) - 18:04, 1 November 2024
  • Thumbnail for Body cavity
    to the type of body cavity they possess, such as pseudocoelomates and protostome coelomates. In amniotes and some invertebrates, the coelom is the large...
    12 KB (1,416 words) - 19:47, 20 October 2024
  • Thumbnail for Animal
    symmetric body plan. The vast majority belong to two large superphyla: the protostomes, which includes organisms such as the arthropods, molluscs, flatworms...
    128 KB (11,452 words) - 07:21, 26 October 2024
  • Thumbnail for Brachiopod
    always placed brachiopods as protostomes while another type has split between placing brachiopods among the protostomes or the deuterostomes. It was suggested...
    92 KB (9,411 words) - 21:53, 30 September 2024
  • Thumbnail for Anus
    appears to have happened at least twice, following different paths in protostomes and deuterostomes. This accompanied or facilitated other important evolutionary...
    7 KB (699 words) - 17:51, 3 October 2024