Schizaster is a genus of heart urchins belonging to the family Schizasteridae. The type species of the genus is Schizaster studeri.
Species
Extant and extinct species within this genus include:
- Schizaster alcaldei <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster alsiensis <small>Maccagno, 1947</small> âÂÂ
- Schizaster altissimus <small>Arnold & H. L. Clark, 1927</small> âÂÂ
- Schizaster bathypetalus <small>Arnold & H. L. Clark, 1927</small> âÂÂ
- Schizaster beckeri <small>Cooke, 1942</small> âÂÂ
- Schizaster brachypetalus <small>Arnold & H. L. Clark, 1927</small> âÂÂ
- Schizaster caobaense <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster cojimarensis <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster compactus <small>(Koehler, 1914)</small>
- Schizaster costaricensis <small>Durham, 1961</small> âÂÂ
- Schizaster delorenzoi <small>Checchia-Rispoli, 1950</small> âÂÂ
- Schizaster doederleini <small>(Chesher, 1972)</small>
- Schizaster dumblei <small>Israelsky, 1924</small> âÂÂ
- Schizaster duroensis <small>Kier, 1957</small> âÂÂ
- Schizaster dyscritus <small>Arnold & H. L. Clark, 1927</small> âÂÂ
- Schizaster edwardsi <small>Cotteau, 1889</small> -
- Schizaster eopneustes <small>Lambert, 1933</small> âÂÂ
- Schizaster excavatus <small>Martin, in Jeannet & Martin, 1937</small> âÂÂ
- Schizaster fernandezi <small>Sánchez Roig, 1952</small> âÂÂ
- Schizaster floridiensis <small>(Kier & Grant, 1965)</small>
- Schizaster gerthi <small>Pijpers, 1933</small> âÂÂ
- Schizaster gibberulus <small>L. Agassiz in L. Agassiz & Desor, 1847</small>
- Schizaster gigas <small>Sánchez Roig, 1953</small> âÂÂ
- Schizaster granti <small>Duncan & Sladen, 1883</small> âÂÂ
- Schizaster guirensis <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster habanensis <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster hexagonalis <small>Arnold & H. L. Clark, 1927</small> âÂÂ
- Schizaster humei <small>Lambert, 1932</small> âÂÂ
- Schizaster hunti <small>Kier, 1957</small> âÂÂ
- Schizaster jeanneti <small>Martin, in Jeannet & Martin, 1937</small> âÂÂ
- Schizaster karkarensis <small>Kier, 1957</small> âÂÂ
- Schizaster kinasaensis <small>Morishita, 1953</small> âÂÂ
- Schizaster lacunosus <small>(Linnaeus, 1758)</small>
- Schizaster leprosorum <small>Lambert, 1933</small> âÂÂ
- Schizaster llagunoi <small>Lambert & Sánchez Roig, in Sánchez Roig, 1949</small> âÂÂ
- Schizaster marci <small>Castex, 1930</small> âÂÂ
- Schizaster miyazakiensis <small>Morishita, 1956</small> âÂÂ
- Schizaster morlini <small>Grant & Hertlein, 1956</small> âÂÂ
- Schizaster moronensis <small>Sánchez Roig, 1951</small> âÂÂ
- Schizaster munozi <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster narindensis <small>Lambert, 1933</small> âÂÂ
- Schizaster ocalanus <small>Cooke, 1942</small> âÂÂ
- Schizaster orbignyanus <small>A. Agassiz, 1880</small>
- Schizaster ovatus <small>(Lindley, 2004)</small>
- Schizaster pappi <small>Thirring, 1936</small> âÂÂ
- Schizaster pentagonalis <small>Sánchez Roig, 1953</small> âÂÂ
- Schizaster persica <small>Clegg, 1933</small> âÂÂ
- Schizaster portisi <small>Serra, 1932</small> âÂÂ
- Schizaster pratti <small>Israelsky, 1933</small> âÂÂ
- Schizaster riveroi <small>Sánchez Roig, 1952</small> âÂÂ
- Schizaster rojasi <small>Sánchez Roig, 1952</small> âÂÂ
- Schizaster rotundatus <small>(Döderlein, 1906)</small>
- Schizaster salutis <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster sanctamariae <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster santanae <small>Sánchez Roig, 1949</small> âÂÂ
- Schizaster schlosseri <small>Traub, 1938</small> âÂÂ
- Schizaster taiwanicus <small>Hayasaka, 1948</small> âÂÂ
- Schizaster vedadoensis <small>Sánchez Roig, 1949</small> âÂÂ
The fossil record of the genus dates back to the Paleocene (age range: 66.043 to 0.012 million years ago). These fossils have been found all over the world.
References
- Cyril Walker & David Ward (1993) - Fossielen: Sesam Natuur Handboeken, Bosch & Keuning, Baarn.