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| familia = [[Spatangidae]]
| familia = [[Spatangidae]]
| genus = '''''Maretia'''''
| genus = '''''Maretia'''''
| genus_authority = Gray, 1855
| genus_authority = [[John Edward Gray|Gray]], 1855
}}
}}
'''''Maretia''''' is a genus of [[heart urchin]]s belonging to the family [[Spatangidae]]. <ref>[http://www.catalogueoflife.org/col/search/scientific/genus/Maretia/match/1 Catalogue of life] </ref><ref>[http://www.ubio.org/browser/details.php?namebankID=4232215 Ubio] </ref>
'''''Maretia''''' is a genus of [[heart urchin]]s belonging to the family [[Spatangidae]]. <ref>[http://www.catalogueoflife.org/col/search/scientific/genus/Maretia/match/1 Catalogue of life] </ref><ref>[http://www.ubio.org/browser/details.php?namebankID=4232215 Ubio] </ref>

Revision as of 18:37, 2 July 2016

Maretia
Temporal range: Eocene - Recent
Maretia planulata
Scientific classification
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Maretia

Gray, 1855

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

Species[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.

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, Cuba, Indonesia, New Zealand and Eritrea. [4]

References

  • Rowe, F.W.E & Gates, J. (1995). Echinodermata. In ‘Zoological Catalogue of Australia’. 33 (Ed A. Wells.) pp xiii + 510 (CSIRO Australia, Melbourne.)