Ischyrhiza texana

Fort Hays Sternberg Museum · CC0 · via GBIF. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- IschyrhizaPBDB
- Diet
- carnivorePBDB, for Chondrichthyes
- Life habit
- nektonicPBDB, for Chondrichthyes
- Motility
- actively mobilePBDB, for Chondrichthyes
Time the record covers
At least 4.1 million years on record.
The record covers at least 93.9 Mya to 89.8 Mya. No occurrence read is dated outside 100.5 Mya to 85.7 Mya.
7 occurrences of Ischyrhiza texana on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
7 occurrences- Late Cretaceous100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
4 formations
- Graneros Shale Formation2
- Carlile Shale Formation · Colorado Group2
- Dakota Formation1
- Atco Formation · Austin Group1
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The named rock units Ischyrhiza texana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Ischyrhiza texana and its relatives
Late CretaceousWhere Ischyrhiza texana and its relatives were recorded in the Late Cretaceous.
Found in the same rock
115 taxa- Cretalamna appendiculata7 sites
- Chiloscyllium greeni6 sites
- Cretomanta canadensis6 sites
- Meristodonoides6 sites
- Enchodus gladiolus5 sites
- Enchodus shumardi5 sites
- Hadrodus5 sites
- Ptychotrygon triangularis5 sites
- Scapanorhynchus raphiodon5 sites
- Aspidorhynchidae4 sites
- Cantioscyllium decipiens4 sites
- Caturidae4 sites
- Cretoxyrhina mantelli4 sites
- Pachyrhizodus minimus4 sites
- Plethodidae4 sites
- Protosphyraena4 sites
- Rhinobatos incertus4 sites
- Squalicorax falcatus4 sites
- Squalicorax pawpawensis4 sites
- Texatrygon hooveri4 sites
- Cenocarcharias tenuiplicatus3 sites
- Cretodus crassidens3 sites
- Cretodus semiplicatus3 sites
- Dallasiella willistoni3 sites
The Paleobiology Database records 7 sites for Ischyrhiza texana, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
7 references- A new marine vertebrate assemblage from the Upper Cretaceous Dakota Formation in Nebraska, USA, and its paleoecology and taphonomy1
- Fossil vertebrates from the middle of the Graneros Shale (Upper Cretaceous: Middle Cenomanian), Russell County, Kansas, USA1
- Fossil marine vertebrates from the Codell Sandstone Member (middle Turonian) of the Upper Cretaceous Carlile Shale in Jewell County, Kansas, USA1
- Fossil marine vertebrates from the Blue Hill Shale Member (Middle Turonian) of the Upper Cretaceous Carlile Shale in northeastern Nebraska1
- Fossil fish fauna from the uppermost Graneros Shale (Upper Cretaceous: middle Cenomanian) in southeastern Nebraska1
- Early Coniacian (Late Cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas1
- Sélaciens nouveaux du Crétacé du Texas1
Each of the 7 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Ischyrhiza texana
- Source
- GBIF
- Credit
- Fort Hays Sternberg Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Ischyrhiza texana was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itIschyrhiza through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cappetta and Case 1975)