Gemmarcula
Searched as Gemmarcula pterygotos. The Paleobiology Database treats Gemmarcula as the accepted name.
No picture of Gemmarcula 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 Gemmarcula, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GemmarculinaePBDB
- Diet
- suspension feederPBDB, for Terebrataliidae
- Life habit
- low-level epifaunalPBDB, for Terebrataliidae
- Motility
- stationary, attachedPBDB, for Terebrataliidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 3.1 million years on record.
The one occurrence read is dated to somewhere between 113.2 Mya and 110.1 Mya, which is a dating window rather than a span.
1 occurrence of Gemmarcula 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
1 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
- Munday’s Hill Phosphatic Sandstone Formation · Lower Greensand Group1
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The named rock units Gemmarcula has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gemmarcula and its relatives
Early CretaceousWhere Gemmarcula and its relatives were recorded in the Early Cretaceous.
Found in the same rock
278 taxa- Rhynchonella6 sites
- Trifidarcula trifida6 sites
- Arenaciarcula fittoni5 sites
- Ornithella5 sites
- Parahoplites5 sites
- Parahoplites nutfieldiensis5 sites
- Anglonautilus undulatus4 sites
- Cyclothyris latissima4 sites
- Cidaris3 sites
- Cyrtothyris cantabridgiensis3 sites
- Grasirhynchia grasiana3 sites
- Hyposalenia3 sites
- Kingena3 sites
- Moutonithyris dutempleana3 sites
- Neithea quinquecostata3 sites
- Panopea3 sites
- Pleurotomaria3 sites
- Praelongithyris praelongiforma3 sites
- Rastellum diluvianum3 sites
- Salenia3 sites
- Terebratulina3 sites
- Tropaeum subarcticum3 sites
- Acesta2 sites
- Aniabrochus comptonensis2 sites
The Paleobiology Database records 20 sites for Gemmarcula, 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
1 referenceEach of the 1 occurrence 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 Gemmarcula 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 Gemmarcula, or no answer at all. This entry cannot say which.
No 3D scan of Gemmarcula 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 itGemmarculinae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.