Penaceras
No picture of Penaceras 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 Penaceras, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AcanthohoplitinaePBDB
- 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 8.2 million years on record.
Every occurrence read is dated to somewhere between 121.4 Mya and 113.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Penaceras 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
3 occurrences- Early 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
1 formation
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The named rock units Penaceras 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.
Penaceras and its relatives
Early CretaceousWhere Penaceras and its relatives were recorded in the Early Cretaceous.
Found in the same rock
19 taxa- Dufrenoyia justinae3 sites
- Burckhardtites nazasensis2 sites
- Colombiceras spathi2 sites
- Dufrenoyia2 sites
- Pseudohaploceras reesidei2 sites
- Acanthohoplites1 site
- Burckhardtites ehlersi1 site
- Caseyella aguilerae1 site
- Cheloniceras1 site
- Dufrenoyia dufrenoyi1 site
- Dufrenoyia scotti1 site
- Epicheloniceras1 site
- Hypacanthohoplites acutecostum1 site
- Hypacanthoplites1 site
- Kazanskyella minima1 site
- Paracymatoceras milleri1 site
- Peltocrioceras1 site
- Pseudohaploceras jacobi1 site
- Rhytidoplites robertsi1 site
The Paleobiology Database records 3 sites for Penaceras, 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
3 references- Lower Aptian (Lower Cretaceous) ammonites from the basal strata of the La Peña Formation of Nuevo León State, northeast Mexico: biochronostratigraphic implications1
- Towards a standard ammonite zonation for the Aptian (Lower Cretaceous) of northern Mexico1
- Étude biostratigraphique des Ammonites (Jurassique supérieur et Crétacé) du Mexique (Centre et Nord)1
Each of the 3 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 Penaceras 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 Penaceras, or no answer at all. This entry cannot say which.
No 3D scan of Penaceras 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 itAcanthohoplitinae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cantú-Chapa 1963