Placentammina
No picture of Placentammina 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 Placentammina, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SaccammininaePBDB
- Diet
- detritivorePBDB, for Textulariina
- Life habit
- infaunalPBDB, for Textulariina
- Motility
- stationaryPBDB, for Foraminifera
Time the record covers
At least 256 million years on record.
The record covers at least 290.1 Mya to 33.9 Mya. No occurrence read is dated outside 293.52 Mya to 2.58 Mya.
25 occurrences of Placentammina 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
25 occurrences- Permian4%
- Early Cretaceous72%
- Late Cretaceous16%
- Paleoceneunder 1%
- Eocene1%
- Oligocene5%
- Miocene1%
- Plioceneunder 1%
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
- Westgate Formation · Colorado Group18
- Belle Fourche Formation · Colorado Group1
- Callytharra Formation1
- Lincoln Creek Formation1
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The named rock units Placentammina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Placentammina and its relatives
Early CretaceousWhere Placentammina and its relatives were recorded in the Early Cretaceous.
Found in the same rock
73 taxa- Miliammina16 sites
- Saccammina16 sites
- Ammobaculites13 sites
- Reophax13 sites
- Haplophragmoides12 sites
- Trochammina10 sites
- Verneuilinoides8 sites
- Psamminopelta7 sites
- Verneuilina7 sites
- Textularia6 sites
- Hippocrepina5 sites
- Gaudryina4 sites
- Bathysiphon3 sites
- Psammosphaera3 sites
- Ammodiscus2 sites
- Arenobulimina2 sites
- Cribrostomoides2 sites
- Kalamopsis2 sites
- Psammosiphonella2 sites
- Pseudobolivina2 sites
- Rhabdammina2 sites
- Ammobaculites wallalensis1 site
- Ammomarginulina1 site
- Ammosphaeroidina1 site
The Paleobiology Database records 25 sites for Placentammina, 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
4 references- Sedimentology, micropaleontology, geochemistry and hydrocarbon potential of shale from the cretaceous Lower Colorado Group in Western Canada20
- Site U15123
- A wood-fall association from the Late Eocene deep-water sediments of Washington State, USA1
- Foraminifera and their habitats within a cool-water carbonate succession following glaciation, Early Permian (Sakmarian), Western Australia1
Each of the 25 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Placentammina 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 Placentammina, or no answer at all. This entry cannot say which.
No 3D scan of Placentammina 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 itSaccammininae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.