Maretia

Genus of sea urchins From Wikipedia, the free encyclopedia

Maretia is a genus of heart urchins belonging to the family Spatangidae.[1][2]

Quick facts Scientific classification ...
Maretia
Temporal range: Eocene - Recent
Maretia planulata
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Order: Spatangoida
Family: Maretiidae
Genus: Maretia
Gray, 1855
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Species

  • Maretia carinata Bolau, 1873
  • Maretia cordata Mortensen, 1948
  • Maretia estenozi Sánchez Roig, 1926
  • Maretia planulata (Lamarck, 1816)[3]

Description

These sea urchins are irregular, as the mouth is located at the front of the underside of the animal, while the anus is located in rear end position.[4]

Fossil of Maretia pavesi from Miocene of Italy

Fossil record

Fossils of Maretia are found in marine strata from the Eocene until the Quaternary (age range: from 40.4 to 0.012 million years ago.). Fossils are known from some localities in United Kingdom, United States, Germany, Spain, Cuba, Indonesia, New Zealand, and Eritrea and Greece.[5]

References

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