Pachydiscus (Pachydiscus) ultimus
No picture of Pachydiscus (Pachydiscus) ultimus 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 Pachydiscus (Pachydiscus) ultimus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Pachydiscus (Pachydiscus)PBDB
- 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.
15 occurrences of Pachydiscus (Pachydiscus) ultimus 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
15 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 Pachydiscus (Pachydiscus) ultimus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pachydiscus (Pachydiscus) ultimus and its relatives
Late CretaceousWhere Pachydiscus (Pachydiscus) ultimus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
61 taxa- Grossouvrites joharae8 sites
- Maorites densicostatus8 sites
- Diplomoceras cylindraceum3 sites
- Acesta2 sites
- Amberleya2 sites
- Cucullaea antarctica2 sites
- Cyclorisma2 sites
- Eunaticina2 sites
- Galeodea2 sites
- Goniomya2 sites
- Hoploparia stokesi2 sites
- Pachydiscus riccardi2 sites
- Panopea clausa2 sites
- Pinna2 sites
- Pseudophyllites loryi2 sites
- Pulvinites antarctica2 sites
- Pycnodonte (Phygraea) vesicularis vesiculosa2 sites
- Reptilia2 sites
- Rotularia2 sites
- Seymourtula antarctica2 sites
- Taioma2 sites
- Acmaea1 site
- Anaguandryceras seymouriensis1 site
- Anthozoa1 site
The Paleobiology Database records 14 sites for Pachydiscus (Pachydiscus) ultimus, 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
4 references- Late Campanian-Maastrichtian ammonite fauna from Seymour Island (Antarctic Peninsula)12
- Evolution and extinction of Maastrichtian (Late Cretaceous) cephalopods from the López de Bertodano Formation, Seymour Island, Antarctica1
- Latest Cretaceous/Earliest Tertiary Transition on Seymour Island, Antarctica1
- Stratigraphy, sedimentology, and paleoecology of Upper Cretaceous/Paleocene shelf-deltaic sediments of Seymour Island1
Each of the 15 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 Pachydiscus (Pachydiscus) ultimus 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 Pachydiscus (Pachydiscus) ultimus, or no answer at all. This entry cannot say which.
No 3D scan of Pachydiscus (Pachydiscus) ultimus 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 itPachydiscus (Pachydiscus) through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Macellari 1986