Collina gemma
No picture of Collina gemma 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 Collina gemma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CollinaPBDB
- 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 9.5 million years on record.
Every occurrence read is dated to somewhere between 184.2 Mya and 174.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
40 occurrences of Collina gemma 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
40 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
4 formations
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The named rock units Collina gemma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.
Collina gemma and its relatives
Early JurassicWhere Collina gemma and its relatives were recorded in the Early Jurassic.
Found in the same rock
66 taxa- Haugia3 sites
- Hildoceras semipolitum3 sites
- Porpoceras vortex3 sites
- Collina nicklesi2 sites
- Erycites costatus2 sites
- Hildoceras bifrons2 sites
- Nodicoeloceras dayi2 sites
- Osperleioceras2 sites
- Osperlioceras holzapfeli2 sites
- Porpoceras2 sites
- Porpoceras andraei2 sites
- Alocolytoceras coarctatum1 site
- Alocolytoceras dorcadis1 site
- Calliphylloceras capitanii1 site
- Calliphylloceras nilssoni1 site
- Catacoeloceras crassum1 site
- Catacoeloceras jordani1 site
- Catacoeloceras prorsiradiatum1 site
- Collina kampemorpha1 site
- Collina pseudoyoungi1 site
- Crassiceras dimorphum1 site
- Crassiceras gradatum1 site
- Crassiceras latum1 site
- Crestaites meneghinii1 site
The Paleobiology Database records 13 sites for Collina gemma, 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
9 references- The Toarcian in the Subbetic basin (southern Spain): Bio-events (ammonite and calcareous nannofossils) and carbon-isotope stratigraphy27
- Middle Toarcian Ammonitina from the Gerecse Mts, Hungary3
- Réparation biostratigraphique des ammonites du Toarcien moyen de la bordure sud des Causses (France) et révision des ammonites décrites et figurées par Monestier (1931)3
- Caracterización de Choffatirhynchia nov. gen. (Brachiopoda, Rhynchonellida) en el Toarciense (Jurásico) de la Cordillera Ibérica (España)2
- Ammonites and stratigraphic succession of the middle Toarcian – lowermost Aalenian from the Jebel Amergou (Moulay Bouchta area, Internal Prerif Zone, External Rif belt, northern Morocco)1
- Ammonite stratigraphy of a Toarcian (Lower Jurassic) section on Nagy-Pisznice Hill (Gerecse Mts, Hungary)1
- The Ammonite zones of the Toarcian in Bulgaria - New evidence, subzonation and correlation with the standard zones and subzones in North-Western Europe1
- Das Makrobenthos der Causses (Südfrankreich): Palökologie einer mittel- bis oberliassischen Mergelfolge1
- Sue la classification des Dactylioceratidae (Ammonoidea) du Toarcien1
Each of the 40 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 Collina gemma 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 Collina gemma, or no answer at all. This entry cannot say which.
No 3D scan of Collina gemma 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 itCollina through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bonarelli 1894