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Echinocardium
Taxonomy
Echinocardium was named by Gray (1825) [Sepkoski's age data: T Ol-u R]. It is extant.
It was assigned to Spatangidae by Clark (1904) and Clark and Twitchell (1915); to Echinocardiidae by Cooke (1942); to Loveniidae by Fischer (1966) and Henderson (1975); and to Spatangoida by Sepkoski (2002).
It was assigned to Spatangidae by Clark (1904) and Clark and Twitchell (1915); to Echinocardiidae by Cooke (1942); to Loveniidae by Fischer (1966) and Henderson (1975); and to Spatangoida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. Echinocardium Gray 1825
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Echinocardium cordatum Pennant 1777
†Echinocardium deperessum Clark and Twitchell 1915
†Echinocardium kelloggi Kier 1983
†Echinocardium marylandiense Kier 1972
†Echinocardium orthonotum Conrad 1843
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Invalid names: Echinocardium ampliforus McCrady 1855 [synonym], Echinocardium gothicum Ravenel 1848 [synonym], Echinocardium virginianum Forbes 1845 [synonym]
Diagnosis
No diagnoses are available