Schizaster Genus of sea urchins
Schizaster Schizasteridae . The type species of the genus is Schizaster studeri .
Species
Extant and extinct species within this genus include:
Schizaster alcaldei Sánchez Roig, 1949 †Schizaster alsiensis Maccagno, 1947 †Schizaster altissimus Arnold & H. L. Clark, 1927 †Schizaster bathypetalus Arnold & H. L. Clark, 1927 †Schizaster beckeri Cooke, 1942 †Schizaster brachypetalus Arnold & H. L. Clark, 1927 †Schizaster caobaense Sánchez Roig, 1949 †Schizaster cojimarensis Sánchez Roig, 1949 †Schizaster compactus (Koehler, 1914) Schizaster costaricensis Durham, 1961 †Schizaster delorenzoi Checchia-Rispoli, 1950 †Schizaster doederleini (Chesher, 1972) Schizaster dumblei Israelsky, 1924 †Schizaster duroensis Kier, 1957 †Schizaster dyscritus Arnold & H. L. Clark, 1927 †Schizaster edwardsi Cotteau, 1889 -Schizaster eopneustes Lambert, 1933 †Schizaster excavatus Martin, in Jeannet & Martin, 1937 †Schizaster fernandezi Sánchez Roig, 1952 †Schizaster floridiensis (Kier & Grant, 1965) Schizaster gerthi Pijpers, 1933 †Schizaster gibberulus L. Agassiz in L. Agassiz & Desor, 1847 Schizaster gigas Sánchez Roig, 1953 †Schizaster granti Duncan & Sladen, 1883 †Schizaster guirensis Sánchez Roig, 1949 †Schizaster habanensis Sánchez Roig, 1949 †Schizaster hexagonalis Arnold & H. L. Clark, 1927 †Schizaster humei Lambert, 1932 †Schizaster hunti Kier, 1957 †Schizaster jeanneti Martin, in Jeannet & Martin, 1937 †Schizaster karkarensis Kier, 1957 †Schizaster kinasaensis Morishita, 1953 †Schizaster lacunosus (Linnaeus, 1758) Schizaster leprosorum Lambert, 1933 †Schizaster llagunoi Lambert & Sánchez Roig, in Sánchez Roig, 1949 †Schizaster marci Castex, 1930 †Schizaster miyazakiensis Morishita, 1956 †Schizaster morlini Grant & Hertlein, 1956 †Schizaster moronensis Sánchez Roig, 1951 †Schizaster munozi Sánchez Roig, 1949 †Schizaster narindensis Lambert, 1933 †Schizaster ocalanus Cooke, 1942 †Schizaster orbignyanus A. Agassiz, 1880 Schizaster ovatus (Lindley, 2004) Schizaster pappi Thirring, 1936 †Schizaster pentagonalis Sánchez Roig, 1953 †Schizaster persica Clegg, 1933 †Schizaster portisi Serra, 1932 †Schizaster pratti Israelsky, 1933 †Schizaster riveroi Sánchez Roig, 1952 †Schizaster rojasi Sánchez Roig, 1952 †Schizaster rotundatus (Döderlein, 1906) Schizaster salutis Sánchez Roig, 1949 †Schizaster sanctamariae Sánchez Roig, 1949 †Schizaster santanae Sánchez Roig, 1949 †Schizaster schlosseri Traub, 1938 †Schizaster taiwanicus Hayasaka, 1948 †Schizaster vedadoensis Sánchez Roig, 1949 †
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. ISBN 90-246-4924-2
