裂星海膽

裂星海膽（學名：Schizaster）是裂星海膽科下的一屬海膽，其化石分布於世界各地。這種心海膽的前半部花瓣狀步帶陷入很深，長有管足的孔在步帶上十分顯眼。牠們死亡後殼的遺骸經常破碎，故大多數的標本是以內印模的方式保存下來。

## 棲息地

裂星海膽深埋於泥中，利用其長長的管足形成漏斗狀連接物以通向海底，牠們以沉積物中的小顆粒為食。

## 物種

已滅絕種以劍號(†)標記

- 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)，結實裂星海膽
- 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)，又名佛羅里達裂星海膽
- 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)，凹裂星海膽，又名凹卵形海膽（由於過去曾被歸入為 Ova 屬）
- 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 †，台灣裂星海膽
- Schizaster vedadoensis Sánchez Roig, 1949 †

## 外部連結

- Schizaster in the Paleobiology Database

## 基本資料

- 說明：裂星海膽的化石
- 學名：Schizaster
- genus_authority：L. Agassiz, 1835
- 模式種：Schizaster studeri
- type_species_authority：L. Agassiz, 1836
- subdivision_ranks：種
- 栽培群成員：見內文
- 異名：Aplospatangus Lambert, 1907、Brisaster (Schizaster) L. Agassiz, 1835、Paraster Pomel, 1869、Paraster (Schizaster) L. Agassiz, 1835、Rotundaster Lambert & Thiéry, 1921、Schizaster (Aplospatangus) Lambert, 1907、Schizaster (Paraster) Pomel, 1869、Schizaster (Schizaster) L. Agassiz, 1835、Schyzaster