Mesopuzosia pacifica
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
- MesopuzosiaPBDB
- 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 4.1 million years on record.
Every occurrence read is dated to somewhere between 93.9 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Mesopuzosia pacifica 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
9 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
- Saku Formation4
- Redding Formation · Pacheco Group3
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The named rock units Mesopuzosia pacifica 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.
Mesopuzosia pacifica and its relatives
Late CretaceousWhere Mesopuzosia pacifica and its relatives were recorded in the Late Cretaceous.
Found in the same rock
41 taxa- Yezoites puerculus5 sites
- Anagaudryceras3 sites
- Damesites ainuanus3 sites
- Gaudryceras (Gaudryceras) denseplicatum3 sites
- Scalarites3 sites
- Tetragonites glabrus3 sites
- Eubostrychoceras2 sites
- Inoceramus aduncus2 sites
- Inoceramus teshioensis2 sites
- Neophylloceras2 sites
- Anchura (Helicaulax) condoniana1 site
- Avicula roguensis1 site
- Bostrychoceras occidentale1 site
- Collignoniceras bravaisianum1 site
- Diplomoceras phoenixense1 site
- Drilluta jacksonensis1 site
- Eucalycoceras shastense1 site
- Glycymeris pacifica1 site
- Glycymerita veatchii1 site
- Gyrodes (Gyrodes) dowelli1 site
- Hyphantoceras ceratopse1 site
- Hyphantoceras irregulare1 site
- Hypophylloceras (Neophylloceras) ramosum1 site
- Inoceramus1 site
The Paleobiology Database records 8 sites for Mesopuzosia pacifica, 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- Paleoecological analysis of ammonoid assemblages in the Turonian Scaphites facies of Hokkaido, Japan4
- Upper Cretaceous ammonites of California. Part III2
- Upper Cretaceous of the Pacific Coast2
- Preliminary report on the Cretaceous reptile fossils from Hokkaido1
Each of the 9 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 Mesopuzosia pacifica
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Mesopuzosia pacifica 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 itMesopuzosia through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Matsumoto 1954