Dunnicrinus aequalis
No picture of Dunnicrinus aequalis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dunnicrinus aequalis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DunnicrinusPBDB
- 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 45 million years on record.
Every occurrence read is dated to somewhere between 100.5 Mya and 56 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
11 occurrences of Dunnicrinus aequalis 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
11 occurrencesThese 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
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The named rock units Dunnicrinus aequalis 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.
Dunnicrinus aequalis and its relatives
Late CretaceousWhere Dunnicrinus aequalis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
52 taxa- Gauthieria pseudoradiata8 sites
- Oolopygus8 sites
- Ophiomusium granulosum8 sites
- Chomataster acules7 sites
- Applinocrinus cretaceus5 sites
- Hemipneustes striatoradiatus5 sites
- Leymeriaster eluvialis5 sites
- Nucleopygus5 sites
- Diplodetus4 sites
- Goniasteridae4 sites
- Hemiaster4 sites
- Hemiaster (Bolbaster) prunella4 sites
- Lophidiaster pygmaeus4 sites
- Nucleopygus scrobiculatus4 sites
- Placometra laticirra4 sites
- Astropectinidae3 sites
- Cardiaster granulosus3 sites
- Ophiura serrata3 sites
- Salenidia bonissenti3 sites
- Trochalosoma3 sites
- Birgelenocrinus degraafi2 sites
- Catopygus2 sites
- Graphularia2 sites
- Jaekelometra defectiva2 sites
The Paleobiology Database records 11 sites for Dunnicrinus aequalis, 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: Crinoids10
- Taxodiaceous conifers from the Maastrichtian type area (Late Cretaceous, NE Belgium, SE Netherlands)1
Each of the 11 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Dunnicrinus aequalis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dunnicrinus aequalis, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDunnicrinus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (D'Orbigny 1841)