Sphenodiscus intermedius
No picture of Sphenodiscus intermedius 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 Sphenodiscus intermedius, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SphenodiscusPBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Ammonoidea
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
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.
6 occurrences of Sphenodiscus intermedius 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
6 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
2 formations
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The named rock units Sphenodiscus intermedius has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Sphenodiscus intermedius and its relatives
Late CretaceousWhere Sphenodiscus intermedius and its relatives were recorded in the Late Cretaceous.
Found in the same rock
29 taxa- Ostrea3 sites
- Sphenodiscus pleurisepta3 sites
- Trachycardium3 sites
- Acutostrea plumosa2 sites
- Anomia ornata2 sites
- Bryozoa2 sites
- Crassostrea2 sites
- Malletia2 sites
- Serpula2 sites
- Sphenodiscus lobatus2 sites
- Striarca2 sites
- Turritella2 sites
- Banis1 site
- Banis siniformis1 site
- Buccinopsis1 site
- Cliona1 site
- Corbula1 site
- Cymbophora1 site
- Eutrephoceras dekayi1 site
- Gastropoda1 site
- Gyrodes1 site
- Linearis1 site
- Linter1 site
- Liopeplum cretaceum1 site
The Paleobiology Database records 6 sites for Sphenodiscus intermedius, 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- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain3
- Cretaceous ammonites from Texas and northern Mexico3
Each of the 6 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 content0
No picture of Sphenodiscus intermedius 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 Sphenodiscus intermedius, or no answer at all. This entry cannot say which.
No 3D scan of Sphenodiscus intermedius 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 itSphenodiscus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Böse 1928