Gemmellaroceras alloplocum
No picture of Gemmellaroceras alloplocum 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 Gemmellaroceras alloplocum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GemmellarocerasPBDB
- 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 16 million years on record.
Every occurrence read is dated to somewhere between 199.5 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Gemmellaroceras alloplocum 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
9 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
3 formations
- Ghost Creek Formation · Maude Group7
- Fannin Formation · Maude Group1
- Isztimér Limestone Formation1
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The named rock units Gemmellaroceras alloplocum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gemmellaroceras alloplocum and its relatives
Early JurassicWhere Gemmellaroceras alloplocum and its relatives were recorded in the Early Jurassic.
Found in the same rock
37 taxa- Miltoceras sellae4 sites
- Polymorphites confusus3 sites
- Pseudoskirroceras imlayi3 sites
- Tropidoceras2 sites
- Tropidoceras erythraeum2 sites
- Tropidoceras flandrini2 sites
- Acanthopleuroceras whiteavesi1 site
- Apringia diptycha1 site
- Arnioceras1 site
- Arnioceras ceratitoides1 site
- Arnioceras rejectum1 site
- Asteroceras1 site
- Bakonyithyris pedemontana1 site
- Calliphylloceras bicicolae1 site
- Catriceras catriense1 site
- Cirpa subcostellata1 site
- Cisnerospira darwini1 site
- Discohelix acarinata1 site
- Discohelix orbis1 site
- Dohmella multistriatus1 site
- Fuciniceras1 site
- Gastropoda1 site
- Gibbirhynchia orsinii1 site
- Juraphyllites1 site
The Paleobiology Database records 9 sites for Gemmellaroceras alloplocum, 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
2 references- Pliensbachian (Lower Jurassic) ammonites of the Queen Charlotte Islands, British Columbia8
- Les ammonites du Sinémurien et du Pliensbachien inférieur de la montagne du Bakony (Hongrie)1
Each of the 9 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 Gemmellaroceras alloplocum 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 Gemmellaroceras alloplocum, or no answer at all. This entry cannot say which.
No 3D scan of Gemmellaroceras alloplocum 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 itGemmellaroceras through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gemmellaro 1884)