Amphymenium
No picture of Amphymenium was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Amphymenium itself, so it was not used. 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 Amphymenium, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HistriastrinaePBDB
Time the record covers
At least 17 million years on record.
The record covers at least 66 Mya to 48.07 Mya. No occurrence read is dated outside 72.2 Mya to 33.9 Mya.
33 occurrences of Amphymenium on record, most of them in the Paleocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
33 occurrences- Late Cretaceous12%
- Paleocene79%
- Eocene9%
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
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The named rock units Amphymenium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 occurrences have no formation on record, which is common for older literature.
Amphymenium and its relatives
PaleoceneWhere Amphymenium and its relatives were recorded in the Paleocene.
Found in the same rock
103 taxa- Actinomminae28 sites
- Amphipyndax stocki28 sites
- Dictyomitra andersoni28 sites
- Lithomespilus28 sites
- Eucyrtidiidae26 sites
- Lithelius26 sites
- Stichomitra carnegiense26 sites
- Amphisphaera25 sites
- Mita25 sites
- Myllocercion25 sites
- Theocampe24 sites
- Lithomelissa23 sites
- Cornutella californica22 sites
- Dictyomitra multicostata22 sites
- Spongodiscus22 sites
- Sponguridae22 sites
- Stichomitra22 sites
- Theocapsomma22 sites
- Cyrtocapsa21 sites
- Lithocampe21 sites
- Siphocampe21 sites
- Spongodiscidae21 sites
- Spongotrochus21 sites
- Tholodiscus ocellatus21 sites
The Paleobiology Database records 31 sites for Amphymenium, 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
3 references- Stratigraphic, paleontological and geochemical data from Upper Cretaceous and Lower Paleocene strata in southeastern Marlborough, New Zealand30
- Site U15072
- Site U15091
Each of the 33 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 Amphymenium was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Amphymenium itself, so it was not used.
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 Amphymenium, or no answer at all. This entry cannot say which.
No 3D scan of Amphymenium 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 itHistriastrinae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Haeckel 1882