Sphenodiscus pleurisepta
No picture of Sphenodiscus pleurisepta was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Sphenodiscus pleurisepta itself, so it was not used. 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 pleurisepta, 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 28 million years on record.
Every occurrence read is dated to somewhere between 93.9 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
62 occurrences of Sphenodiscus pleurisepta 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
62 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
12 formations
- Escondido Formation26
- Fox Hills Formation8
- Corsicana Marl Formation7
- Prairie Bluff Formation · Selma Group6
- Owl Creek Formation4
- Chiwapa Formation3
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The named rock units Sphenodiscus pleurisepta has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Sphenodiscus pleurisepta and its relatives
Late CretaceousWhere Sphenodiscus pleurisepta and its relatives were recorded in the Late Cretaceous.
Found in the same rock
378 taxa- Striarca22 sites
- Trachycardium22 sites
- Cymbophora20 sites
- Ostrea18 sites
- Turritella trilira18 sites
- Turritella17 sites
- Exogyra (Exogyra) costata16 sites
- Cliona14 sites
- Serpula14 sites
- Crassostrea13 sites
- Nucula percrassa13 sites
- Veniella conradi13 sites
- Anomia ornata12 sites
- Corbula12 sites
- Crassatella vadosa12 sites
- Nuculana12 sites
- Vertebrata12 sites
- Anomia argentaria11 sites
- Liopeplum cretaceum11 sites
- Acutostrea plumosa10 sites
- Malletia10 sites
- Bryozoa9 sites
- Cubitostrea tecticosta9 sites
- Idonearca capax9 sites
The Paleobiology Database records 62 sites for Sphenodiscus pleurisepta, 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
10 references- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain33
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain11
- The Maastrichtian ammonites Coahuilites sheltoni Böse, 1928, and Sphenodiscus pleurisepta (Conrad, 1857), from the uppermost Pierre Shale and basal Fox Hills Formation of Colorado and Wyoming7
- Ammonites from the upper part of the Pierre Shale and Fox Hills Formation of Colorado4
- Cretaceous ammonites from Texas and northern Mexico2
- Upper Maastrichtian ammonite biostratigraphy of the Gulf Coastal Plain (Mississippi Embayment, southern USA)1
- Maastrichtian ammonites from the Severn Formation of Maryland1
- Occurrence of Costacopluma (Decapoda: Brachyura: Retroplumidae) in the Maastrichtian of southern Mexico and its paleobiogeographic implications1
- Fabric of the Cretaceous-Tertiary Marine Macrofaunal Transition at Braggs, Alabama1
- The larger invertebrate fossils of the Navarro group of Texas1
Each of the 62 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 pleurisepta was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Sphenodiscus pleurisepta itself, so it was not used.
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 pleurisepta, or no answer at all. This entry cannot say which.
No 3D scan of Sphenodiscus pleurisepta 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. (Conrad 1857)