• Thumbnail for Sand dollar
    Sand dollar (redirect from Clypeasteroida)
    Africa) are species of flat, burrowing sea urchins belonging to the order Clypeasteroida. Some species within the order, not quite as flat, are known as sea...
    15 KB (1,570 words) - 03:51, 6 July 2024
  • Thumbnail for List of echinoderm orders
    Order Salenioida Order Temnopleuroida Superorder Gnathostomata Order Clypeasteroida (sand dollars) Order Holectypoida Superorder Atelostomata Order Holasteroida...
    10 KB (470 words) - 21:27, 18 May 2024
  • Thumbnail for Sea urchin
    Paleogene and Neogene periods (circa 66 to 2.6 Mya), sand dollars (Clypeasteroida) arose. Their distinctive, flattened tests and tiny spines were adapted...
    80 KB (8,034 words) - 07:49, 2 November 2024
  • Thumbnail for Heliophora
    Heliophora (category Clypeasteroida)
    Aristotle's lantern, and the origin of the sand dollars (Echinodermata: Clypeasteroida)". Paleobiology. 16 (1): 25–48. doi:10.1017/S0094837300009714. ISSN 0094-8373...
    10 KB (1,171 words) - 07:35, 4 January 2023
  • Thumbnail for Leodia sexiesperforata
    keyhole urchin, is a species of sand dollar, in the echinoderm order Clypeasteroida. It is native to tropical and sub-tropical parts of the western Atlantic...
    5 KB (486 words) - 18:45, 1 October 2024
  • Thumbnail for Gnathostomata (echinoid)
    Jurassic–recent PreꞒ Ꞓ O S D C P T J K Pg N Echinocyamus pusillus (order Clypeasteroida) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum:...
    1 KB (98 words) - 14:33, 22 August 2024
  • Thumbnail for Clypeaster rosaceus
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Species: C. rosaceus Binomial...
    4 KB (432 words) - 19:19, 1 October 2024
  • Thumbnail for Dendraster excentricus
    Unwin. Rich Mooi. "Sand Dollars of the Genus Dendraster (Echinoidea:Clypeasteroida): Phylogenetic Systematics, Heterochrony, and Distribution of Extant...
    10 KB (1,326 words) - 18:17, 20 January 2024
  • Thumbnail for Irregularia
    family Archiaciidae Cotteau & Triger, 1869 † order Cassiduloida order Clypeasteroida fossil family Clypeidae Lambert, 1898 † fossil family Clypeolampadidae...
    5 KB (316 words) - 23:43, 6 February 2024
  • Thumbnail for Arachnoididae
    Arachnoididae (category Clypeasteroida)
    Arachnoididae is a family of echinoderms of the order Clypeasteroida. Ammotrophus H. L. Clark, 1928 Arachnoides Leske, 1778 Fellaster Durham, 1955 Fossulaster...
    2 KB (64 words) - 20:19, 30 April 2023
  • Thumbnail for Echinarachnius parma
    Echinarachnius parma (category Clypeasteroida)
    68: p Mortensen, T. (1948). A Monograph of the Echinoidea. IV, 2. Clypeasteroida. Clypeasteridæ, Arachnoidæ, Fibulariidæ, Laganidæ and Scutellidæ. 471...
    5 KB (516 words) - 15:18, 27 May 2023
  • Thumbnail for Clypeaster japonicus
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Species: C. japonicus Binomial...
    2 KB (244 words) - 21:43, 4 December 2023
  • Thumbnail for Neognathostomata
    Neolampadidae (Lambert, 1918a) family Pliolampadidae (Kier, 1962) † order Clypeasteroida A.Agassiz, 1872 ("sand dollars") suborder Clypeasterina family Clypeasteridae...
    4 KB (259 words) - 08:17, 6 April 2023
  • Thumbnail for Clypeaster
    Domain: Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Lamarck, 1801...
    5 KB (332 words) - 21:33, 4 December 2023
  • Thumbnail for List of echinoderms of Ireland
    There are 75 species of echinoderm (phylum Echinodermata) recorded in Ireland. Asterias rubens (common sea star) Leptasterias muelleri (northern sea star)...
    7 KB (296 words) - 16:31, 18 March 2023
  • Thumbnail for Clypeasteridae
    Clypeasteridae (category Clypeasteroida)
    Clypeasteridae is a family of sea urchins in the order Clypeasteroida. This family was first scientifically described in 1835 by the Swiss-American biologist...
    2 KB (160 words) - 04:17, 18 March 2023
  • Thumbnail for Clypeidae
    Clypeidae (category Clypeasteroida)
    Clypeidae is a family of sea urchins belonging to the order Clypeasteroida. This family is known in the fossil record from the Jurassic (Bajocian age)...
    2 KB (106 words) - 17:44, 9 December 2023
  • Thumbnail for Echinodiscus tenuissimus
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Astriclypeidae Genus: Echinodiscus Species: E. tenuissimus Binomial...
    725 bytes (22 words) - 17:50, 28 December 2023
  • Thumbnail for Mellitidae
    Mellitidae (category Clypeasteroida)
    Mellitidae is a family of sand dollars, in the echinoderm order Clypeasteroida. These irregular sea urchins bury themselves in soft sediment in shallow...
    2 KB (85 words) - 16:12, 23 January 2024
  • Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Species: C. durandi Binomial...
    1 KB (74 words) - 21:40, 4 December 2023
  • Thumbnail for Dendraster gibbsii
    classification Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Suborder: Scutellina Family: Dendrasteridae Genus: Dendraster Species:...
    2 KB (69 words) - 17:12, 30 October 2024
  • Thumbnail for Clypeaster australasiae
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Species: C. australasiae Binomial...
    2 KB (170 words) - 21:05, 1 October 2024
  • Thumbnail for Mellitella stokesii
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Mellitidae Genus: Mellitella Species: M. stokesii Binomial name...
    2 KB (78 words) - 00:05, 18 October 2024
  • Thumbnail for Encope emarginata
    2023-03-23. Francisco, V.; Pauls, S. M. (2008). "Especies del Orden Clypeasteroida (Echinodermata: Echinoidea) de las costas de Venezuela". Revista de...
    9 KB (922 words) - 06:43, 2 November 2024
  • Thumbnail for Echinarachniidae
    Echinarachniidae (category Clypeasteroida)
    Echinarachniidae is a family of echinoderms belonging to the order Clypeasteroida. This clade appeared in the Middle Miocene epoch and is still living...
    2 KB (91 words) - 03:04, 23 February 2024
  • Taiwanasteridae (category Clypeasteroida)
    Taiwanasteridae is a family of echinoderms belonging to the order Clypeasteroida. Genera: Sinaechinocyamus Liao, 1979 Taiwanaster Wang, 1984 "Taiwanasteridae"...
    661 bytes (29 words) - 16:31, 26 January 2024
  • Thumbnail for Dendraster ashleyi
    classification Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Suborder: Scutellina Family: Dendrasteridae Genus: Dendraster Species:...
    1 KB (53 words) - 01:57, 11 October 2021
  • Thumbnail for Fellaster zelandiae
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Fellaster Species: F. zelandiae Binomial...
    1 KB (75 words) - 09:44, 24 April 2022
  • Thumbnail for Clypeaster chesheri
    Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Clypeasteroida Family: Clypeasteridae Genus: Clypeaster Species: C. chesheri Binomial...
    821 bytes (54 words) - 21:39, 4 December 2023
  • extinct order of irregular echinoids. The group is closely related to the Clypeasteroida, and may be representative of its ancestral clypeasteroid. The order...
    2 KB (195 words) - 21:38, 5 June 2021