Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Echinodermata
Subphylum: Eleutherozoa
Superclassis: Cryptosyringida
Classis: Echinoidea
Subclassis: Euechinoidea
Superordo: Diadematacea
Ordo: Diadematoida
Familia: Diadematidae
Genera: Astropyga - Centrostephanus - Diadema - Echinothrix
The Diadematidae are a family of sea urchins. Their tests are either rigid or flexible and their spines are long and hollow.[2]
Astropyga Gray, 1825
Astropyga radiata (Leske, 1778), extant
Astropyga pulvinata (Lamarck, 1816), extant
Astropyga magnifica (Clark, 1934), extant
Centrostephanus Peters, 1855
Centrostephanus asteriscus (Agassiz & Clark, 1907), extant
Centrostephanus coronatus (Verrill, 1867), extant
Centrostephanus fragile (Wiltshire in Wright, 1882), Santonian, Maastrichtian, Danian
Centrostephanus longispinus (Philippi, 1845), extant
Centrostephanus nitidus (Koehler, 1927), extant
Centrostephanus rodgersii (Agassiz, 1863), extant[3]
Chaetodiadema Mortensen, 1903
Chaetodiadema granulatum (Mortensen, 1903), extant
Chaetodiadema keiense (Mortensen, 1903), extant
Chaetodiadema tuberculatum (Clark, 1909), extant
Diadema Gray, 1825
Diadema palmeri (Baker, 1967), extant
Diadema savignyi (Audouin, 1829), extant
Diadema setosum (Leske, 1778), extant
Diadema antillarum (Philippi, 1845), extant
Diadema paucispinum (Agassiz, 1863), extant
Diadema mexicanum (Agassiz, 1863), extant
Diadema ascensionis (Mortensen, 1909), extant
Echinodiadema Verrill, 1867
Echinodiadema coronata (Verrill, 1867), extant
Echinothrix Peters, 1853
Echinothrix calamaris (Pallas, 1774), extant
Echinothrix diadema (Linnaeus, 1758), extant
Eodiadema, Lower Jurassic
Eremopyga Agassiz & Clark, 1908
Eremopyga denudata (De Meijere, 1904), extant
Goniodiadema Mortensen, 1939
Goniodiadema mauritiense (Mortensen, 1939), extant
Kamptosoma Mortensen, 1903, extant
Palaeodiadema (Pomel, 1887), Santonian, Maastrichtian, Danian
Pedinothuria Louis, 1897
Pedinothuria cidaroides (Gregory, 1897), Callovian, Oxfordian
Senses
Like other sea urchins diadematids are sensitive to touch, light, and chemicals; additionally they do have eyes (eye spots) which is in contrast to other sea urchins. Because of this they can follow a threat with their spines.[4]
References
"Diadematidae". Integrated Taxonomic Information System.
Maran, Vincent (2010-11-11). "Astropyga radiata (Leske, 1778)". DORIS (in French). Retrieved 2013-01-22.
"Black Sea Urchin". Museum Victoria. Retrieved 2011-05-13.
Knight, K. (2009). "Sea Urchins Use Whole Body As Eye". Journal of Experimental Biology. 213 (2): i–ii. doi:10.1242/jeb.041715.
Charles Q. Choi (December 28, 2009). "Body of Sea Urchin is One Big Eye". LiveScience (Press release).
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