| dbo:abstract
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- Ischyrhiza is an extinct genus of sclerorhynchoid ray from the Late Cretaceous and Early Paleogene. It had a large, toothed rostrum closely resembling that of a modern-day sawfish. Despite formerly being classified within a family of extinct sawfish-like rays known as Sclerorhynchidae, phylogenetic analyses indicate that Ischyrhiza, Schizorhiza, and Onchopristis form a distinct clade that groups closer with the extant family Rajidae, which contains the true skates, possibly rendering the suborder Sclerorhynchoidei paraphyletic. Fossils of the genus have been found in Canada, the United States, the Aguja Formation of Mexico, the Bissekty Formation of Uzbekistan, the Tamayama Formation of Japan, the Dukamaje Formation of Niger, the El Molino Formation of Bolivia, the Quiriquina Formation of Chile, and the Chota Formation of Peru. (en)
- Ischyrhiza is een uitgestorven geslacht van haaien, dat leefde in het Krijt. (nl)
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| dbp:subdivision
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- * I. antiquus
* I. avonicola (Estes, 1964)
* I. marrocanus
* I. mira (Leidy, 1856)
* I. stromeri
* I. texana (Cappetta & Case 1975)
Ischyrhiza Ischyrhiza Leidy, 1856 genus accepted
Ischyrhiza mira Ischyrhiza mira species accepted
Ischyrhiza iwakiensis Ischyrhiza iwakiensis Uyeno & Hasegawa, 1986 species accepted
Ischyrhiza serra Ischyrhiza serra Nessov, 1997 species accepted
Ischyrhiza nigeriensis Ischyrhiza nigeriensis Tabaste, 1963 species accepted
Ischyrhiza hartenbergeri Ischyrhiza hartenbergeri Cappetta, 1975 species accepted
Ischyrhiza germaniae Ischyrhiza germaniae Weiler & Albers, 1964 species accepted
Ischyrhiza viaudi Ischyrhiza viaudi Cappetta, 1981 species accepted
Ischyrhiza avonicola Ischyrhiza avonicola Estes, 1964 species accepted
Ischyrhiza texana Ischyrhiza texana species accepted
Ischyrhiza antiqua Ischyrhiza antiqua species accepted
Ischyrhiza radiata Ischyrhiza radiata (en)
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| rdfs:comment
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- Ischyrhiza is een uitgestorven geslacht van haaien, dat leefde in het Krijt. (nl)
- Ischyrhiza is an extinct genus of sclerorhynchoid ray from the Late Cretaceous and Early Paleogene. It had a large, toothed rostrum closely resembling that of a modern-day sawfish. Despite formerly being classified within a family of extinct sawfish-like rays known as Sclerorhynchidae, phylogenetic analyses indicate that Ischyrhiza, Schizorhiza, and Onchopristis form a distinct clade that groups closer with the extant family Rajidae, which contains the true skates, possibly rendering the suborder Sclerorhynchoidei paraphyletic. (en)
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