• Thumbnail for Cidaroida
    Cidaroida, also known as pencil urchins, is an order of primitive sea urchins, the only living order of the subclass Perischoechinoidea. All other orders...
    4 KB (266 words) - 04:17, 9 May 2024
  • Thumbnail for Sea urchin
    sandstones. Archaeocidaris brownwoodensis, Cidaroida, Carboniferous, c. 300 mya Miocidaris coaeva, Cidaroida, Middle Triassic, c. 240 mya Clypeus plotti...
    80 KB (8,035 words) - 16:13, 18 December 2024
  • Thumbnail for Eucidaris tribuloides
    regions of the Atlantic Ocean. As a member of the basal echinoid order Cidaroida, its morphological, developmental and molecular genetic characteristics...
    12 KB (1,262 words) - 19:31, 1 October 2024
  • Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Austrocidaris Species: A. canaliculata Binomial...
    896 bytes (57 words) - 21:26, 1 October 2024
  • (plant), a plant genus in the Linaceae family Radiola, the spines of fossil Cidaroida sea urchins Radiola, a 1920s line of radios by RCA Radiola, a brand name...
    509 bytes (98 words) - 07:53, 26 April 2024
  • Thumbnail for Cidaris blakei
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Cidaris Species: C. blakei Binomial name Cidaris...
    4 KB (469 words) - 03:19, 6 August 2021
  • 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
  • 1–180, retrieved 2019-02-06 B. M. Cutress. 1980. Cretaceous and Tertiary Cidaroida (Echinodermata: Echinoidea) of the Caribbean Area. Bulletins of American...
    2 KB (125 words) - 16:00, 18 November 2024
  • Thumbnail for List of echinoderm orders
    Clypeasteroida Echinolampas depressa, an Echinolampadoida Eucidaris metularia, a Cidaroida Order Apodida Order Dendrochirotida Order Elasipodida Order Holothuriida...
    10 KB (470 words) - 20:31, 9 December 2024
  • Thumbnail for Austrocidaris spinulosa
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Austrocidaris Species: A. spinulosa Binomial...
    978 bytes (58 words) - 04:12, 11 March 2021
  • Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Austrocidaris Species: A. pawsoni Binomial name...
    775 bytes (54 words) - 19:44, 22 May 2021
  • 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...
    6 KB (422 words) - 15:53, 26 June 2024
  • Thumbnail for Acanthocidaris hastigera
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Acanthocidaris Species: A. hastigera Binomial...
    1 KB (67 words) - 21:05, 10 June 2022
  • Thumbnail for Perischoechinoidea
    euechinoid sea urchins became common. Today, only a single order, the Cidaroida, survives. Most fossil forms had multiple columns of ambulacral plates...
    2 KB (141 words) - 03:46, 18 May 2024
  • Thumbnail for Eucidaris galapagensis
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Eucidaris Species: E. galapagensis Binomial name...
    7 KB (855 words) - 21:10, 30 January 2022
  • Thumbnail for Phyllacanthus imperialis
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Phyllacanthus Species: P. imperialis Binomial...
    2 KB (120 words) - 19:40, 1 October 2024
  • 1–180, retrieved 2019-02-06 B. M. Cutress. 1980. Cretaceous and Tertiary Cidaroida (Echinodermata: Echinoidea) of the Caribbean Area. Bulletins of American...
    3 KB (130 words) - 16:03, 18 November 2024
  • Thumbnail for Calocidaris micans
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Calocidaris Species: C. micans Binomial name...
    918 bytes (55 words) - 18:48, 17 September 2022
  • Thumbnail for Canjuers Lagerstätte
    P. marginata Echinoidea Cidaroida Rhabdocidaris R. nobilis Echinoidea Cidaroida Diplocidaris D. gigantea Echinoidea Cidaroida Hemicidaris H. crenularis...
    13 KB (491 words) - 18:52, 16 September 2024
  • Thumbnail for Psychocidaridae
    Psychocidaridae (category Cidaroida)
    Psychocidaridae is a family of sea urchins in the order Cidaroida. The genus Psychocidaris is extant while the other genera are only known from fossils...
    3 KB (280 words) - 23:55, 2 December 2023
  • Thumbnail for Eucidaris thouarsii
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Eucidaris Species: E. thouarsii Binomial name...
    4 KB (399 words) - 20:27, 1 October 2024
  • Thumbnail for Acanthocidaris maculicollis
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Acanthocidaris Species: A. maculicollis Binomial...
    924 bytes (63 words) - 21:05, 10 June 2022
  • 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 (1,085 words) - 09:46, 28 October 2023
  • Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Ctenocidaridae Genus: Aporocidaris Species: A. antarctica Binomial...
    1 KB (130 words) - 03:24, 4 December 2023
  • Thumbnail for Cidaris mabahissae
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Cidaris Species: C. mabahissae Binomial name...
    1 KB (61 words) - 06:54, 2 August 2024
  • Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Ctenocidaridae Genus: Aporocidaris Species: A. fragilis Binomial...
    2 KB (142 words) - 03:24, 4 December 2023
  • Thumbnail for Stylocidaris affinis
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Stylocidaris Species: S. affinis Binomial name...
    2 KB (108 words) - 20:25, 1 October 2024
  • Thumbnail for Prionocidaris thomasi
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Prionocidaris Species: P. thomasi Binomial name...
    705 bytes (36 words) - 21:18, 6 July 2024
  • Thumbnail for Cidaris abyssicola
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Cidaroida Family: Cidaridae Genus: Cidaris Species: C. abyssicola Binomial name...
    1 KB (56 words) - 21:40, 1 October 2024
  • Thumbnail for Archaeocidaris
    Archaeocidaris (category Cidaroida genera)
    classification Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Subclass: Euechinoidea Order: Cidaroida Family: Archaeocidaridae Genus: Archaeocidaris...
    2 KB (51 words) - 19:35, 18 November 2024