Dufrenoyia justinae
No picture of Dufrenoyia justinae was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Dufrenoyia justinae, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DufrenoyiaPBDB
- 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.
29 occurrences of Dufrenoyia justinae 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
29 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
7 formations
- La Peña Formation11
- Cow Creek Limestone Formation9
- La Péna Formation2
- Pine Island Shale Formation2
- Lowell Formation · Bisbee Group1
- Travis Peak Formation · Trinity Group1
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The named rock units Dufrenoyia justinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Dufrenoyia justinae and its relatives
Early CretaceousWhere Dufrenoyia justinae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
46 taxa- Cheloniceras9 sites
- Dufrenoyia scotti9 sites
- Colombiceras8 sites
- Colombiceras spathi5 sites
- Burckhardtites nazasensis3 sites
- Epicheloniceras3 sites
- Hypacanthoplites3 sites
- Acanthohoplites2 sites
- Burckhardtites2 sites
- Parahoplites2 sites
- Penaceras rursiradiatus2 sites
- Pseudohaploceras reesidei2 sites
- Toxoceratoides2 sites
- Ancyloceras matheronianum1 site
- Burckhardtites ehlersi1 site
- Caseyella aguilerae1 site
- Cheloniceras buxtorfi1 site
- Colombiceras robustum1 site
- Cymatoceras1 site
- Douvilleiceras1 site
- Dufrenoyia dufrenoyi1 site
- Dufrenoyia furcata1 site
- Epicheloniceras tschernyschewi1 site
- Gargasiceras1 site
The Paleobiology Database records 28 sites for Dufrenoyia justinae, 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
10 references- Ammonite biostratigraphy of two stratigraphic sections of the La Peña Formation (Aptian, Lower Cretaceous) in Nuevo León State, northeast Mexico11
- Lower Albian and Aptian (Cretaceous) ammonites of Texas8
- Texas Cretaceous ammonites and nautiloids2
- Ammonites from the Dierks Limestone of southern Arkansas2
- Lower Aptian (Lower Cretaceous) ammonites from the basal strata of the La Peña Formation of Nuevo León State, northeast Mexico: biochronostratigraphic implications1
- Sedimentological and paleoecological aspects of the Aptian transgressive event of Sierra del Rosario, Durango, northeast Mexico1
- Renz, 19821
- Étude biostratigraphique des Ammonites (Jurassique supérieur et Crétacé) du Mexique (Centre et Nord)1
- Lower Cretaceous stratigraphy in southeastern Arizona1
- The Cretaceous and Tertiary of southern Texas and northern Mexico1
Each of the 29 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 Dufrenoyia justinae was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Dufrenoyia justinae, or no answer at all. This entry cannot say which.
No 3D scan of Dufrenoyia justinae 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 itDufrenoyia through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hill 1893)