Eupachydiscus haradai
via iDigBio · CC BY · via iDigBio. 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
- EupachydiscusPBDB
- 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 least 11 million years on record.
The record covers at least 83.6 Mya to 72.2 Mya. No occurrence read is dated outside 85.7 Mya to 66 Mya.
11 occurrences of Eupachydiscus haradai 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
11 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
6 formations
- Bykov Formation3
- Hinoshima Formation · Himenoura Group2
- Kajisako Formation1
- Ohimisaki Formation1
- Chinomigawa Formation1
- Kashima Formation · Yezo Group1
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The named rock units Eupachydiscus haradai has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Eupachydiscus haradai and its relatives
Late CretaceousWhere Eupachydiscus haradai and its relatives were recorded in the Late Cretaceous.
Found in the same rock
52 taxa- Sphenoceramus orientalis4 sites
- "Gigantocapulus" transformis2 sites
- Inoceramus (Platyceramus) japonicus2 sites
- Tetragonites glabrus2 sites
- Acila (Truncacila) hokkaidoensis1 site
- Anagaudryceras1 site
- Anagaudryceras nanum1 site
- Apiotrigonia1 site
- Buscyconidae indet.1 site
- Chlamydoselachus1 site
- Cretalamna appendiculata1 site
- Cymatoceras1 site
- Damesites damesi1 site
- Dwardius1 site
- Echinorhinus wadanohanaensis1 site
- Elasmobranchii1 site
- Elasmosaurus1 site
- Eriphyla1 site
- Ezonuculana mactraeformis mactraeformis1 site
- Gaudryceras1 site
- Gaudryceras (Pseudogaudryceras) tenuliratum ornata1 site
- Gaudryceras striatum1 site
- Gaudryceras tenuiliratum1 site
- Glycymeris (Glycymeris)1 site
The Paleobiology Database records 11 sites for Eupachydiscus haradai, 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
9 references- Stratigraphy and fossil assemblages of the Upper Cretaceous system in the Makarov area, southern Sakhalin, Russian Far East3
- Features and paleoecological significance of the shark fauna from the Upper Cretaceous Hinoshima Formation, Himenoura Group, southwest Japan1
- Morewites, a new Campanian (Late Cretaceous) heteromorph ammonoid genus from Hokkaido, Japan1
- A new species of Taniwhasaurus (Mosasauridae, Tylosaurinae) from the Upper Santonian-Lower Campanian (Upper Cretaceous) of Hokkaido, Japan1
- Upper Cretaceous depositional environments and bivalve assemblages of far-east Asia: the Himenoura Group, Kyushu, Japan1
- Part I. Ammonites from the Upper Campanian of the Teshio Mountains1
- Part V. Upper Cretaceous ammonites from the Monobe area, Shikoku1
- Preliminary report on the Cretaceous reptile fossils from Hokkaido1
- The Upper Cretaceous cephalopods of Japan, Part I1
Each of the 11 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 Eupachydiscus haradai
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Eupachydiscus haradai was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itEupachydiscus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Jimbo 1894)