Gregoryceras
No picture of Gregoryceras 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 Gregoryceras, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PeltoceratinaePBDB
- 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 1.1 million years on record.
The record covers at least 159 Mya to 157.9 Mya. No occurrence read is dated outside 161.5 Mya to 154.8 Mya.
29 occurrences of Gregoryceras on record, most of them in the Late 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
29 occurrences- Late 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
8 formations
- L'Ammonitico Rosso Inférieur Formation4
- Rosso Ammonitico Formation2
- "Hartmannshof" Formation2
- Pálihálás Limestone Formation2
- Theoi Marls Formation2
- Calcaire a oolithes ferrugineuses Formation1
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The named rock units Gregoryceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.
Gregoryceras and its relatives
Late JurassicWhere Gregoryceras and its relatives were recorded in the Late Jurassic.
Found in the same rock
178 taxa- Euaspidoceras12 sites
- Perisphinctes (Dichotomosphinctes)8 sites
- Perisphinctes7 sites
- Otosphinctes6 sites
- Perisphinctes (Dichotomosphinctes) antecedens6 sites
- Glochiceras subclausum5 sites
- Neoprionoceras henrici5 sites
- Aspidoceras4 sites
- Euaspidoceras oegir4 sites
- Mirosphinctes4 sites
- Ochetoceras4 sites
- Perisphinctes (Arisphinctes)4 sites
- Perisphinctes (Arisphinctes) chloroolithicus4 sites
- Perisphinctes (Kranaosphinctes)4 sites
- Taramelliceras (Taramelliceras) callicerum4 sites
- Tornquistes helvetiae4 sites
- Cardioceras (Cawtoniceras) tenuiserratum3 sites
- Cardioceras (Subvertebriceras) densiplicatum3 sites
- Epimayaites3 sites
- Lytoceras3 sites
- Perisphinctes (Liosphinctes)3 sites
- Sowerbyceras tortisulcatum3 sites
- Taramelliceras (Taramelliceras)3 sites
- Taramelliceras (Taramelliceras) dentostriatum3 sites
The Paleobiology Database records 25 sites for Gregoryceras, 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
13 references- L'Oxfordien dans la moitié sud du Jura francais - etude stratigraphique6
- Étude paléobiologique d'une population d'Euaspidoceras davouxi sp. nov. (Aspidoceratidae Zittel 1895, Ammonitina) du sommet de la sous-zone à Vertebrale (Oxfordien moyen, zone à Plicatilis) dans le sud-est de la France4
- Les formations du Jurassique supérieur du Bou Rheddou au Nord de Tiaret (Bordure sud-tellienne, Algérie): âge et milieux de dépôt4
- Upper Jurassic-lowermost Cretaceous fossil localities of the Gerecse and Pilis Mountains (rocks, fossils and stratigraphy)2
- Les "Marnes à theoi" de Pamproux (Deux-Sèvres, France), Sous-Zone à Antecedens (Oxfordien moyen, Zone à Plicatilis): diversité des faunes et découverte de nouvelles espèces d'ammonites [The "Theoi Marls" of Pamproux (Deux-Sèvres department, France), Antecedens Sub-zone (Middle Oxfordian, Plicatilis Zone): faunal diversity and discovery of new ammonite species]2
- The Middle Jurassic-Lower Cretaceous Rosso Ammonitico succession of Monte Inici (Trapanese Domain, western Sicily): sedimentology, biostratigraphy and isotope stratigraphy2
- Zur Stratigraphie des Mittel- und unteren Oberjuras in Sengenthal bei Neumarkt /Opf. (Fränkische Alb) [On the stratigraphy of the Middle and early Upper Jurassic at Sengenthal, near Neumarkt/Opf. (Franconian Alb)]2
- Atlas des fossiles caractéristiques de Madagascar (ammonites) - Fascicule IV (Argovien - Rauracien)2
- Les Gregoryceras (Ammonitina, Oxfordien moyen) de la Cluse de Chabrières (sud-est de la France): étude paléobiologique et nouvelles interprétations1
- Unpublished data1
- Development of Oxfordian (Early Upper Jurassic) in the Most Proximally Exposed Part of the Kachchh Basin at Wagad Outside the Kachchh Mainland1
- Geologie de Madagascar I. Les Terrains Sedimentaires1
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. 1 further reference is not listed. 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 Gregoryceras 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 Gregoryceras, or no answer at all. This entry cannot say which.
No 3D scan of Gregoryceras was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itPeltoceratinae through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.