Yezoites
Yezoites is an extinct genus of ammonites placed in the family Scaphitidae. The genus is known lived during the Upper Cretaceous and was first described in 1910. The genus contains five species, Y. bladenensis, Y. orbignyi, Y. planus, Y. puerculus, and Y. subevolutus.
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
- OtoscaphitinaePBDB
- 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 22 million years on record.
The record covers at least 106.3 Mya to 83.6 Mya. No occurrence read is dated outside 113.2 Mya to 72.2 Mya.
205 occurrences of Yezoites 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
205 occurrences- Early Cretaceousunder 1%
- 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
31 formations
- Saku Formation · Yezo Group82
- Redding Formation · Pacheco Group15
- Kashima Formation12
- Seabee Formation9
- Bykov Formation8
- Matanuska Formation5
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The named rock units Yezoites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 21 occurrences have no formation on record, which is common for older literature.
Yezoites and its relatives
Late CretaceousWhere Yezoites and its relatives were recorded in the Late Cretaceous.
Found in the same rock
309 taxa- Scalarites21 sites
- Tetragonites glabrus19 sites
- Gaudryceras (Gaudryceras) denseplicatum18 sites
- Neophylloceras18 sites
- Damesites ainuanus16 sites
- Inoceramus16 sites
- Eubostrychoceras11 sites
- Mesopuzosia11 sites
- Borissiakoceras ashurkoffae8 sites
- Scaphites8 sites
- Biplica isoplicata7 sites
- Inoceramus hobetsensis7 sites
- Anagaudryceras6 sites
- Liocium punctatum6 sites
- Scaphites delicatulus6 sites
- Atresius liratus5 sites
- Gaudryceras5 sites
- Glycymeris pacifica5 sites
- Gyrodes (Gyrodes) dowelli5 sites
- Inoceramus teshioensis5 sites
- Mesopuzosia pacifica5 sites
- Natica (Gyrodes) conradiana5 sites
- Nostoceras (Eubostrychoceras) saxonicum5 sites
- Sciponoceras bohemicum5 sites
The Paleobiology Database records 150 sites for Yezoites, 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
36 references- Paleoecological analysis of ammonoid assemblages in the Turonian Scaphites facies of Hokkaido, Japan51
- Late Cretaceous dimorphic scaphitid ammonoid genus Yezoites from the circum-North Pacific regions50
- Upper Cretaceous ammonites of California. Part III12
- Mid-Cretaceous scaphitid ammonites from Hokkaido10
- Ammonites from the Seabee Formation (Cretaceous) of northern Alaska9
- The ammonites of the English Chalk Rock (Upper Turonian)8
- Ammonite faunas, biostratigraphy, and sequence stratigraphy of the Coniacian-Santonian of the Corbières (NE Pyrénées)6
- Mid-Cretaceous (Albian to Turonian) biostratigraphy of northern California5
- Preliminary report on the Cretaceous reptile fossils from Hokkaido5
- Asociaciones de amonites de la formacion Santa Marta (Cretacio Tardio), Isla James Ross, Antartida4
- Upper Cretaceous of the Pacific Coast4
- The Upper Cretaceous cephalopods of Japan, Part I4
Each of the 205 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. 24 further references are not listed. 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 Yezoites
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Yezoites 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.
The description on this site
- Source
- Wikipedia, “Yezoites”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOtoscaphitinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.