Walteraja exigua
No picture of Walteraja exigua was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Walteraja exigua, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- WalterajaPBDB
- Diet
- carnivorePBDB, for Rajiformes
- Life habit
- nektobenthicPBDB, for Rajiformes
- Motility
- actively mobilePBDB, for Rajiformes
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Walteraja exigua 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
4 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
1 formation
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The named rock units Walteraja exigua has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Walteraja exigua and its relatives
Late CretaceousWhere Walteraja exigua and its relatives were recorded in the Late Cretaceous.
Found in the same rock
48 taxa- Proetmopterus hemmooriensis3 sites
- Squalus balsvikensis3 sites
- Squalus ballingsloevensis2 sites
- Acanthoscyllium1 site
- Annea1 site
- Archaeolamna kopingensis1 site
- Archaeotriakis rochelleae1 site
- Carcharias1 site
- Carcharias samhammeri1 site
- Cenocarcharias tenuiplicatus1 site
- Chiloscyllium1 site
- Crassescyliorhinus germanicus1 site
- Cretorectolobus olsoni1 site
- Dasyatis northdakotaensis1 site
- Enchodus1 site
- Enchodus dirus1 site
- Ginglymostoma1 site
- Hemiscylliidae1 site
- Hemiscyllium hermani1 site
- Heterodontus1 site
- Neoselachii1 site
- Odontaspis aculeatus1 site
- Orectolobiformes1 site
- Palaeogaleus navarroensis1 site
The Paleobiology Database records 4 sites for Walteraja exigua, 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
2 references- A skate in the lowermost Maastrichtian of southern Sweden3
- Chondrichthyan and osteichthyan paleofaunas from the Cretaceous (Late Maastrichtian) Fox Hills Formation of North Dakota, USA: paleoecology, paleogeography, and extinction1
Each of the 4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Walteraja exigua was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Walteraja exigua, or no answer at all. This entry cannot say which.
No 3D scan of Walteraja exigua 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 itWalteraja through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Siverson and Cappetta 2001