(/ˈɜːrtʃɪnz/) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth...

The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms...

the clade Asterozoa, or that they were sister to the (Holothuroidea + Echinoidea) as the clade Cryptosyringida. However, a 2014 analysis of 219 genes from...

The Solnhofen Limestone or Solnhofen Plattenkalk is a collective term for multiple Late Jurassic lithographic limestones in southeastern Germany, which...

and does not pose a serious threat to humans. As a member of the class Echinoidea, the anatomy of Diadema setosum is that of a typical sea urchin. All of...

(July/August): 12–13. Dix, Trevor G. (June 1970). "Biology ofevechinus chloroticus(echinoidea: Echinometridae) from different localities". New Zealand Journal of Marine...

The Nusplingen Limestone (German: Nusplingen Plattenkalk) is a geological formation in Baden-Württemberg, Germany. It preserves fossils dating to the Kimmeridgian...

This List of echinoderm orders concerns the various classes and orders into which taxonomists categorize the roughly 7000 extant species as well as the...

classification Domain: Eukaryota Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea Order: Spatangoida Family: Loveniidae Genus: Echinocardium Species: E...

The Echinothurioida are an order of sea urchins in the class Echinoidea. Echinothurioids are distinguished from other sea urchins by the combination of...