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Fine-spined Heart Urchin

Maretia planulata

Classification

Maretia is a genus of heart urchins belonging to the family Spatangidae. 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. Fossil record Fossils of Maretia are found in marine strata from the Eocene until the Quaternary (age range: from 40.

Distribution

(c) Emanuele Santarelli, some rights reserved (CC BY-SA) · CC-BY-SA
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Countries in the Picchu catalog
France · 18United States of America · 1