Demarezites
Naturalis Biodiversity Center · CC0 · via GBIF. 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
- CyclolobidaePBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Goniatitida
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 2.6 million years on record.
The record covers at least 266.9 Mya to 264.28 Mya. No occurrence read is dated outside 274.4 Mya to 259.857 Mya.
8 occurrences of Demarezites on record, most of them in the Permian. 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
8 occurrences- Permian100%
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
- Hoso-o Formation2
- La Difunta Formation1
- Phosphoria Formation1
- Brushy Canyon Formation1
- Tae Wei Formation1
- Las Delicias Formation1
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The named rock units Demarezites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Demarezites and its relatives
PermianWhere Demarezites and its relatives were recorded in the Permian.
Found in the same rock
33 taxa- Agathiceras2 sites
- Adrianites1 site
- Adrianites cancellatus1 site
- Agathiceras brouweri1 site
- Agathiceras sundaicum1 site
- Artinskia simile1 site
- Daraelites submeeki1 site
- Eohyattoceras gerthi1 site
- Eothinites1 site
- Epadrianites involutus1 site
- Eumedlicottia burckhardti1 site
- Gaetanoceras martini1 site
- Hyattoceras1 site
- Martoceras dieneri1 site
- Medlicottia orbignyana1 site
- Metalegoceras sundaicum1 site
- Mexicoceras smithi1 site
- Neogeoceras girtyi1 site
- Pamiropopanoceras indoaustralicum1 site
- Parapronorites timorensis1 site
- Popanoceras1 site
- Propinacoceras affine1 site
- Pseudagathiceras difuntense1 site
- Pseudagathiceras spinosum1 site
The Paleobiology Database records 8 sites for Demarezites, 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- Permian ammonoids from the Guadalupian (Wordian–Capitanian) of Las Delicias, Coahuila state, Mexico: new biostratigraphical and paleobiogeographical insights2
- Middle Permian ammonoids from the Kamiyasse-Imo district in the southern Kitakami Massif, northeast Japan2
- The Permian ammonoid Demarezites Ruzhencev from the Phosphoria Formation, Idaho2
- New Permian representatives of ammonoid superfamilies Marathonitaceae and Cyclolobaceae2
Each of the 8 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 content1
Picture of Demarezites
- Source
- GBIF
- Credit
- Naturalis Biodiversity Center
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Demarezites 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 itCyclolobidae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ruzhencev 1955