sea urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of ...
s, widespread in the Atlantic and eastern Pacific oceans.
Species
According to the
World Register of Marine Species
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.
Content
The content of the registry is edited and maintained by scientific specialist ...
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...
Arbacia lixula
''Arbacia lixula'', the black sea urchin, is a species of sea urchin from Europe.
Description
It is a medium-sized sea urchin, characterized by its deep black color and its hemispherical shape. All of its spines are roughly the same size (no "s ...
'' (
Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...
,
1758
Events
January–March
* January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', the sta ...
) (Mediterranean)
* ''
Arbacia punctulata
The Atlantic purple sea urchin (''Arbacia punctulata'') is a species of sea urchins from the family Arbaciidae, native to the Atlantic Ocean.
Description
The Atlantic purple sea urchin is a spherical, dark purple-spined sea urchin, with a nea ...
'' (
Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolog ...
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58Arbacia spatuligera
''Arbacia spatuligera'' is a species of sea urchin of the family Arbaciidae. Its armour is covered with spines. ''A. lixula ''was first scientifically described in 1846 by Valenciennes.Kroh, A. (2010). ''Arbacia lixula'' (Valenciennes, 1846). In ...
'' (
Valenciennes
Valenciennes (, also , , ; nl, label=also Dutch, Valencijn; pcd, Valincyinnes or ; la, Valentianae) is a commune in the Nord department, Hauts-de-France, France.
It lies on the Scheldt () river. Although the city and region experienced a s ...
, 1846) (Peru and Chile)
* ''
Arbacia stellata
''Arbacia stellata'' is a species of sea urchin of the family Arbaciidae. Their armour is covered with spines. It is placed in the genus Arbacia and lives in the sea. Arbacia stellata was first scientifically described in 1825 by Blainville.Kroh, ...
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58
Image:Arbacia punctulata Flower Garden Banks.jpg, ''
Arbacia punctulata
The Atlantic purple sea urchin (''Arbacia punctulata'') is a species of sea urchins from the family Arbaciidae, native to the Atlantic Ocean.
Description
The Atlantic purple sea urchin is a spherical, dark purple-spined sea urchin, with a nea ...
''
Image:Arbacia lixula 03.JPG, ''
Arbacia lixula
''Arbacia lixula'', the black sea urchin, is a species of sea urchin from Europe.
Description
It is a medium-sized sea urchin, characterized by its deep black color and its hemispherical shape. All of its spines are roughly the same size (no "s ...