Maretia is a genus of heart urchins belonging to the family Spatangidae.Catalogue of lifeUbio
Species Maretia carinata Bolau, 1873 Maretia cordata Mortensen, 1948 Maretia estenozi Sánchez Roig, 1926 Maretia planulata (Lamarck, 1816)
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.Moore, R.C. (ed.). 1966-1978. Treatise on invertebrate paleontology. Parts S-U. Echinodermata. 2 Volumes. Geological Society of America and Univer-sity of Kansas, Kansas.
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.Paleobiologhy Database
References
Rowe, F.W.E & Gates, J. (1995). Echinodermata. In ‘Zoological Catalogue of Australia’. 33 (Ed A. Wells.) pp xiii + 510 (CSIRO Australia, Melbourne.)
External links Reef Guide Flickr Underwater Photographs by P. Rossi