Riasanites
Riasanites is an Upper Jurassic ammonite belonging to the ammonitid.
No picture of Riasanites 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 Riasanites, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- BerriasellinaePBDB
- 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 6 million years on record.
The record covers at least 143.1 Mya to 137.05 Mya. No occurrence read is dated outside 149.2 Mya to 132.6 Mya.
16 occurrences of Riasanites on record, most of them in the Early 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
16 occurrencesThese 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 Riasanites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.
Riasanites and its relatives
Early CretaceousWhere Riasanites and its relatives were recorded in the Early Cretaceous.
Found in the same rock
51 taxa- Acroteuthis4 sites
- Buchia volgensis4 sites
- Buchia3 sites
- Euthymiceras3 sites
- Camptonectes2 sites
- Himalayites2 sites
- Surites2 sites
- Surites (Surites) analogus2 sites
- Avicula1 site
- Baeticoceras morrisi1 site
- Berriasella1 site
- Berriasella (Berriasella) chomeracensis1 site
- Berriasella (Malbosiceras) malbosi1 site
- Berriasella oppeli1 site
- Berriasella picteti1 site
- Bihenduloceras gregoryi1 site
- Blanfordiceras1 site
- Bogoslovskya1 site
- Buchia fischeriana1 site
- Buchia keyserlingi1 site
- Buchia terebratuloides1 site
- Collyrites1 site
- Ctenostreon1 site
- Cypridea1 site
The Paleobiology Database records 9 sites for Riasanites, 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- The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm11
- Sedimentaere und palaeotektonische Entwicklung der epikontinentalen Unterkreide Polens3
- Integrated stratigraphy and palaeoenvironment of the Berriasian peri-reefal limestones at Štramberk (Outer Western Carpathians, Czech Republic)1
- The Jurassic and Lower Cretaceous of Wadi Hajar, southern Yemen1
Each of the 16 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 content0
No picture of Riasanites 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 Riasanites, or no answer at all. This entry cannot say which.
No 3D scan of Riasanites 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, “Riasanites”
- 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 itBerriasellinae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.