Actiniscus
Searched as Actiniscus pentasterias. The Paleobiology Database treats Actiniscus as the accepted name.
No picture of Actiniscus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Actiniscus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ActiniscaceaePBDB
- Diet
- "photoautotroph"PBDB, for Dinoflagellata
- Environment
- freshwaterPBDB, for Dinophyceae
Time the record covers
At least 69 million years on record.
The record covers at least 72.2 Mya to 2.58 Mya. No occurrence read is dated outside 83.6 Mya to 11.7 ka.
5 occurrences of Actiniscus on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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
5 occurrences- Late Cretaceous20%
- Miocene60%
- Pleistocene20%
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
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The named rock units Actiniscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Actiniscus and its relatives
MioceneWhere Actiniscus and its relatives were recorded in the Miocene.
Found in the same rock
183 taxa- Stephanopyxis3 sites
- Actinocyclus2 sites
- Actinocyclus ingens2 sites
- Actinocyclus octonarius2 sites
- Actinoptychus2 sites
- Ammodochium2 sites
- Corbisema2 sites
- Coscinodiscus2 sites
- Diploneis2 sites
- Distephanus speculum2 sites
- Ebriopsis2 sites
- Mesocena2 sites
- Navicula lyra2 sites
- Paralia2 sites
- Paralia sulcata2 sites
- Radiolaria2 sites
- Stephanopyxis turris2 sites
- Acanthocybium1 site
- Acanthodiscus1 site
- Actinocyclus ellipticus1 site
- Actinoptychus senarius1 site
- Aetobatus1 site
- Aetomyleaus sp.1 site
- Alcidae1 site
The Paleobiology Database records 4 sites for Actiniscus, 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- Paleontology of the Middle Miocene Los Indios Member of the Rosarito Beach Formation, Northwestern Baja California, Mexico2
- Site U15251
- Geología del Área de Adacollo-Puerto Aldea, Región de Coquimbo, Carta No. 961
- Upper Cretaceous and lower Paleocene diatom and silicoflagellate biostratigraphy of Seymour Island, eastern Antarctic Peninsula1
Each of the 5 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 Actiniscus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Actiniscus, or no answer at all. This entry cannot say which.
No 3D scan of Actiniscus 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 itActiniscaceae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ehrenberg 1843