Democrinus maximus
No picture of Democrinus maximus 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 Democrinus maximus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DemocrinusPBDB
- Diet
- suspension feederPBDB, for Comatulida
- Life habit
- intermediate-level epifaunalPBDB, for Comatulida
- Motility
- facultatively mobile, attachedPBDB, for Comatulida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Comatulida
Time the record covers
At most 4.4 million years on record.
Every occurrence read is dated to somewhere between 66 Mya and 61.66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Democrinus maximus on record, most of them in the Paleocene. 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
2 occurrences- Paleocene100%
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 Democrinus maximus 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.
Democrinus maximus and its relatives
PaleoceneWhere Democrinus maximus and its relatives were recorded in the Paleocene.
Found in the same rock
143 taxa- Bourgueticrinus danicus2 sites
- Cidaris2 sites
- Temnocidaris danica2 sites
- Tylocidaris2 sites
- Adelopneustes boehmi1 site
- Adelopneustes montainvillensis1 site
- Aphrocallistes1 site
- Apsendesia1 site
- Araucarioxylon1 site
- Arca1 site
- Arcticocarcinus insignis1 site
- Astropecten1 site
- Atreta1 site
- Atreta nilssoni1 site
- Bidiastopora1 site
- Bisidmonea1 site
- Brissopneustes1 site
- Bulimina1 site
- Carcharias tenuis1 site
- Cardium1 site
- Cassidulus1 site
- Ceratotrochus1 site
- Ceriopora1 site
- Ceriopora micropora1 site
The Paleobiology Database records 2 sites for Democrinus maximus, 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
2 references- Late Cretaceous-Early Paleocene echinoderms and the K/T boundary in the southeast Netherlands and the northeast Belgium. - part 2: Crinoids1
- Kalken paa Saltholm1
Each of the 2 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 Democrinus maximus 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 Democrinus maximus, or no answer at all. This entry cannot say which.
No 3D scan of Democrinus maximus 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 itDemocrinus through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Nielsen 1915)