Pseudoskirroceras imlayi
No picture of Pseudoskirroceras imlayi 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 Pseudoskirroceras imlayi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PseudoskirrocerasPBDB
- 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 8.7 million years on record.
Every occurrence read is dated to somewhere between 192.9 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
18 occurrences of Pseudoskirroceras imlayi on record, most of them in the Early 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
18 occurrences- Early 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.
Found in
2 formations
- Ghost Creek Formation · Maude Group16
- Sierra de Santa Rosa Formation · El Antimonio Group2
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The named rock units Pseudoskirroceras imlayi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pseudoskirroceras imlayi and its relatives
Early JurassicWhere Pseudoskirroceras imlayi and its relatives were recorded in the Early Jurassic.
Found in the same rock
21 taxa- Tropidoceras erythraeum8 sites
- Miltoceras sellae6 sites
- Tropidoceras5 sites
- Gemmellaroceras alloplocum3 sites
- Metaderoceras gemmellaroi evolutum3 sites
- Polymorphites confusus2 sites
- Tropidoceras flandrini2 sites
- Tropidoceras rursicosta2 sites
- Acanthopleuroceras whiteavesi1 site
- Dubariceras freboldi1 site
- Gemmellaroceras aenigmaticum1 site
- Liparoceras (Becheiceras) bechei1 site
- Metaderoceras1 site
- Metaderoceras mouterdei1 site
- Metaderoceras talkeetnaense1 site
- Miltoceras1 site
- Ochotochlamys aequistriata1 site
- Phricodoceras1 site
- Phylloceras1 site
- Tropidoceras masseanum1 site
- Zetoceras bonarellii1 site
The Paleobiology Database records 16 sites for Pseudoskirroceras imlayi, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
2 references- Pliensbachian (Lower Jurassic) ammonites of the Queen Charlotte Islands, British Columbia16
- Ammonoid biostratigraphy and paleobiogeography of Lower Jurassic sections from Sonora (northwest Mexico) and their tectonic implications2
Each of the 18 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 Pseudoskirroceras imlayi 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 Pseudoskirroceras imlayi, or no answer at all. This entry cannot say which.
No 3D scan of Pseudoskirroceras imlayi 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 itPseudoskirroceras through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Smith and Tipper 1988