• Thumbnail for Cidaridae
    Cidaridae is a family of sea urchins in the order Cidaroida. Cidarid sea urchins are characterized by their stout skeleton : the test is thick and hard...
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  • Thumbnail for Sea urchin
    The thick spines (radiola) of Cidaridae were used for walking on the soft seabed....
    81 KB (8,127 words) - 02:51, 16 April 2025
  • Thumbnail for Cidaroida
    Anisocidaridae Vadet, 1999 † superfamily Cidaroidea Gray, 1825 family Cidaridae Gray, 1825 family Ctenocidaridae Mortensen, 1928a family Paurocidaridae...
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  • Thumbnail for Phyllacanthus imperialis
    Phyllacanthus imperialis (category Cidaridae)
    and land mine sea urchin, is a species of sea urchins in the family Cidaridae. It has distinctive thick, blunt spikes. The test is brown or black. The...
    2 KB (120 words) - 19:40, 1 October 2024
  • Thumbnail for Clypeaster reticulatus
    Gruyter. pp. 58–61. ISBN 978-3-11-036853-6. "Clypeaster reticulatus". Cidaridae (in French). University Pierre & Marie Curie. Retrieved 2 June 2018. "Clypeaster...
    4 KB (304 words) - 06:24, 26 January 2025
  • Thumbnail for Eucidaris tribuloides
    fossiles. p. 103. Döderlein LHP (1887). Die japanischen Seeigel, I. Familie Cidaridae und Saleniidae. Stuttgart. p. 42.{{cite book}}: CS1 maint: location missing...
    12 KB (1,262 words) - 19:31, 1 October 2024
  • Thumbnail for Cidaris rugosa
    Cidaris rugosa (category Cidaridae)
    Cidaris rugosa is a species of sea urchins of the Family Cidaridae. Their armour is covered with spines. Cidaris rugosa was first described in 1907 by...
    1 KB (88 words) - 00:43, 7 September 2021
  • Thumbnail for Plococidaris
    Plococidaris (category Cidaridae)
    Plococidaris is a monotypic genus of echinoderms belonging to the family Cidaridae. The only species is Plococidaris verticillata. The species is found in...
    887 bytes (40 words) - 16:05, 23 January 2024
  • Thumbnail for Calocidaris micans
    Calocidaris micans (category Cidaridae)
    Calocidaris micans is a species of sea urchins of the family Cidaridae. Their armour is covered with spines. Calocidaris micans was first scientifically...
    918 bytes (55 words) - 18:48, 17 September 2022
  • Thumbnail for Eucidaris galapagensis
    Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Eucidaris Species: E. galapagensis Binomial name Eucidaris galapagensis...
    7 KB (855 words) - 21:10, 30 January 2022
  • Thumbnail for Paleobiota of the Posidonia Shale
    Dotternhaussen Altforf Banz Multiple specimens A sea urchin in the family Cidaridae. Diademopsis D. crinifera D. aequituberculata D. behtensis D. bowerbanki...
    338 KB (13,079 words) - 04:09, 7 April 2025
  • Austrocidaris pawsoni (category Cidaridae)
    Austrocidaris pawsoni is a species of sea urchins of the Family Cidaridae. Their armour is covered with spines. Austrocidaris pawsoni was first scientifically...
    775 bytes (54 words) - 19:44, 22 May 2021
  • Thumbnail for Acanthocidaris maculicollis
    Acanthocidaris maculicollis (category Cidaridae)
    Acanthocidaris maculicollis is a species of sea urchin of the family Cidaridae. Their armour is covered with spines. It came from the genus Acanthocidaris...
    924 bytes (63 words) - 21:05, 10 June 2022
  • Thumbnail for Chondrocidaris gigantea
    Chondrocidaris gigantea (category Cidaridae)
    or blade-tipped tiara-urchin, is a species of sea urchin of the family Cidaridae. Chondrocidaris gigantea was first scientifically described in 1863 by...
    3 KB (285 words) - 23:30, 17 October 2024
  • Thumbnail for List of echinoderms of South Africa
    The list of echinoderms of South Africa is a list of species that form a part of the echinoderm (Phylum Echinodermata) fauna of South Africa, and includes...
    17 KB (1,080 words) - 19:46, 10 February 2025
  • Thumbnail for Riachuelo Formation
    Formation Genus Species Presence Family Images Stereocidaris S. branneri Cidaridae Rhabdocidaris R. brasiliensis Rhabdocidaridae Salenia S. sergipensis Saleniidae...
    20 KB (1,172 words) - 02:40, 11 April 2025
  • Cidaris nuda (category Cidaridae)
    Cidaris nuda is a species of sea urchins of the Family Cidaridae. Their armour is covered with spines. Cidaris nuda was first scientifically described...
    1 KB (61 words) - 03:20, 6 August 2021
  • Thumbnail for Eucidaris metularia
    metularia, the ten-lined urchin, is a species of sea urchins in the family Cidaridae. It is found in shallow parts of the Indo-Pacific Ocean and is characterised...
    6 KB (569 words) - 19:31, 1 October 2024
  • Thumbnail for Chondrocidaris brevispina
    Chondrocidaris brevispina (category Cidaridae)
    the raspberry sea urchin, is a species of sea urchins of the family Cidaridae. Their armour is covered with short, conical spines. Chondrocidaris brevispina...
    1 KB (94 words) - 21:56, 7 January 2024
  • Sri Lanka is a tropical island situated close to the southern tip of India. The invertebrate fauna is as large as it is common to other regions of the...
    23 KB (2,211 words) - 00:20, 11 December 2023
  • Thumbnail for Cidaris cidaris
    Cidaris cidaris (category Cidaridae)
    Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Cidaris Species: C. cidaris Binomial name Cidaris cidaris (Linnaeus...
    3 KB (291 words) - 19:14, 1 October 2024
  • Thumbnail for Psychocidaridae
    flanges. It is found in the Philippines and the Bonin Islands, Japan. Cidaridae WoRMS. Retrieved 2011-08-28. Family Psychocidaridae Ikeda, 1936 The Echinoid...
    3 KB (280 words) - 23:55, 2 December 2023
  • Thumbnail for Chondrocidaris
    Chondrocidaris (category Cidaridae)
    Chondrocidaris is a genus of sea urchins of the family Cidaridae described in 1863 by Alexander Agassiz. There are two living species and several fossil...
    2 KB (92 words) - 03:53, 6 February 2024
  • Thumbnail for Cidaris blakei
    Cidaris blakei (category Cidaridae)
    Cidaris blakei is a species of sea urchins of the family Cidaridae. Its armour is covered with spines of three types, one unique type being extended and...
    4 KB (469 words) - 03:19, 6 August 2021
  • Thumbnail for Tafraout Group
    Tagoudite Lower Toarcian Ambulacrum, spines An Echinoid of the family Cidaridae Hemicidaris H. (Dorycidaris) termieri Agoudim Amellago Tagoudite Lower...
    132 KB (8,268 words) - 09:37, 15 April 2025
  • Thumbnail for Cidaris mabahissae
    Cidaris mabahissae (category Cidaridae)
    Cidaris mabahissae is a species of sea urchins of the Family Cidaridae. Their armour is covered with spines. Cidaris mabahissae was first scientifically...
    1 KB (61 words) - 06:54, 2 August 2024
  • Thumbnail for Austrocidaris spinulosa
    Austrocidaris spinulosa (category Cidaridae)
    Austrocidaris spinulosa is a species of sea urchins of the family Cidaridae. Their armour is covered with spines. Austrocidaris spinulosa was first scientifically...
    978 bytes (58 words) - 04:12, 11 March 2021
  • Thumbnail for Stylocidaris
    Stylocidaris (category Cidaridae)
    Stylocidaris is a genus of echinoderms belonging to the family Cidaridae. The genus has almost cosmopolitan distribution. Species: Stylocidaris affinis...
    2 KB (121 words) - 18:48, 18 January 2024
  • Thumbnail for Eucidaris thouarsii
    Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Eucidaris Species: E. thouarsii Binomial name Eucidaris thouarsii...
    4 KB (399 words) - 20:27, 1 October 2024
  • Thumbnail for List of marine animals of Australia (temperate waters)
    Pacific region.) (Sea urchins, heart urchins and sand dollars) Family Cidaridae Goniocidaris tubaria Stumpy pencil urchin (Lamarck, 1816) (Dongara, Western...
    238 KB (27,362 words) - 00:13, 29 October 2024