Rollieria freii
No picture of Rollieria freii was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Rollieria freii, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- RollieriaPBDB
- 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 3.8 million years on record.
Every occurrence read is dated to somewhere between 165.3 Mya and 161.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Rollieria freii on record, most of them in the Middle Jurassic. 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
2 occurrences- Middle Jurassic100%
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.
Rollieria freii and its relatives
Middle JurassicWhere Rollieria freii and its relatives were recorded in the Middle Jurassic.
Found in the same rock
53 taxa- Brightia salvadori2 sites
- Metapeltoceras baylei2 sites
- Oppelia2 sites
- Peltoceras trifidum2 sites
- Ammonites coronatum1 site
- Bonarellia bicostata1 site
- Brightia brighti1 site
- Campylites secula1 site
- Collotia colloti1 site
- Collotia frickensis1 site
- Collotites collotiformis1 site
- Collotites petitclerci1 site
- Eryma1 site
- Erymnoceras doliforme1 site
- Erymnocerites argoviensis1 site
- Erymnocerites greppini1 site
- Euaspidoceras ferrugineum1 site
- Kellawaysites multicostatus1 site
- Kellawaysites planissimus1 site
- Kheraites krakoviense1 site
- Kosmoceras spinosum1 site
- Lunuloceras grossouvrei1 site
- Lunuloceras lunula1 site
- Lunuloceras lunuloides1 site
The Paleobiology Database records 2 sites for Rollieria freii, 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
1 referenceEach of the 2 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Rollieria freii was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Rollieria freii, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itRollieria through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jeannet 1951