Aemula
Aemula is an extinct genus of brachiopods that lived during the Cretaceous period. The pedunculate brachiopod species Aemula inusitata had lived on the bodies of larger animals which served for enough feeding surface, since no large attachment sites were available on the Maastrichtian chalk of the sea floor. It was a very small animal, having a maximum length of 7 mm, and is believed to have been short lived as interpreted from its growth lines.
No picture of Aemula 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 Aemula, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlatidiinaePBDB
- Diet
- suspension feederPBDB, for Platidiidae
- Life habit
- low-level epifaunalPBDB, for Platidiidae
- Motility
- stationary, attachedPBDB, for Platidiidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 6.2 million years on record.
The record covers at least 72.2 Mya to 66 Mya. No occurrence read is dated outside 83.6 Mya to 61.66 Mya.
32 occurrences of Aemula on record, most of them in the Late 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
32 occurrences- Late Cretaceous88%
- Paleocene13%
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
Loading coastlines…
The named rock units Aemula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 29 occurrences have no formation on record, which is common for older literature.
Aemula and its relatives
Late CretaceousWhere Aemula and its relatives were recorded in the Late Cretaceous.
Found in the same rock
52 taxa- Terebratulina chrysalis26 sites
- Terebratulina faujasii22 sites
- Terebratulina gracilis19 sites
- Magas chitoniformis17 sites
- Kingena pentangulata16 sites
- Argyrotheca bronnii15 sites
- Leptothyrellopsis polonicus14 sites
- Terebratulina longicollis12 sites
- Cretirhynchia11 sites
- Isocrania costata11 sites
- Rugia acutirostris11 sites
- Argyrotheca coniuncta9 sites
- Gisilina jasmundi9 sites
- Rhynchonella9 sites
- Rugia tenuicostata8 sites
- Scumulus8 sites
- Argyrotheca stevensis7 sites
- Carneithyris subcardinalis7 sites
- Leptothyrellopsis7 sites
- Meonia semiglobularis7 sites
- Rhynchonellidae7 sites
- Terebratulina subtilis7 sites
- Gisilina gisii6 sites
- Argyrotheca4 sites
The Paleobiology Database records 31 sites for Aemula, 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- Brachiopods and the stratigraphy of the Upper Campanian and Lower Maastrichtian Chalk of Norfolk, England16
- End-Cretaceous brachiopod extinctions in the chalk of Denmark10
- Maastrichtian brachiopods from Ciply: palaeoecological and stratigraphical significance3
- Brachiopods from the Upper Cretaceous chalk of Mielnik (eastern Poland)3
Each of the 32 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 content1
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Sonora aemula · UCM:Herp:UCM:Herp:67223
No picture of Aemula 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 Aemula, or no answer at all. This entry cannot say which.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Aemula”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPlatidiinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.