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- ›Sclerorhynchidae
Ischyrhiza
Ischyrhiza is an extinct genus of sclerorhynchoid ray from the Late Cretaceous (Cenomanian-Maastrichtian).
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.
10 branches of this genus, most-observed first
Ischyrhiza mira
speciesIschyrhiza mira
Ischyrhiza radiata
speciesIschyrhiza radiata
Ischyrhiza antiqua
speciesIschyrhiza antiqua
Ischyrhiza marrocanus
speciesIschyrhiza marrocanus
Ischyrhiza iwakiensis
speciesIschyrhiza iwakiensis
Ischyrhiza hartenbergeri
speciesIschyrhiza hartenbergeri
Ischyrhiza nigeriensis
speciesIschyrhiza nigeriensis
Ischyrhiza viaudi
speciesIschyrhiza viaudi
Ischyrhiza germaniae
speciesIschyrhiza germaniae
Ischyrhiza serra
speciesIschyrhiza serra
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Ischyrhiza in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 709560.