Trochalosoma
No picture of Trochalosoma 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 Trochalosoma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StomechinidaePBDB
- Diet
- grazer, deposit feederPBDB, for Echinoidea
- Life habit
- epifaunalPBDB, for Echinoidea
- Motility
- actively mobilePBDB, for Echinoidea
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 21 million years on record.
The record covers at least 93.9 Mya to 72.2 Mya. No occurrence read is dated outside 100.5 Mya to 61.66 Mya.
11 occurrences of Trochalosoma 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 Trochalosoma has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trochalosoma and its relatives
Late CretaceousWhere Trochalosoma and its relatives were recorded in the Late Cretaceous.
Found in the same rock
95 taxa- Hemipneustes striatoradiatus8 sites
- Nucleopygus8 sites
- Oolopygus8 sites
- Procassidulus lapiscancri8 sites
- Goniasteridae7 sites
- Temnocidaris6 sites
- Astropectinidae5 sites
- Chomataster acules5 sites
- Felderophiura vanderhami5 sites
- Gauthieria pseudoradiata5 sites
- Hemiaster5 sites
- Hemiaster (Bolbaster) prunella5 sites
- Jaekelometra belgica5 sites
- Nucleopygus scrobiculatus5 sites
- Salenidia maestrichtensis5 sites
- Semiometra saskiae5 sites
- Trichaster ornatus5 sites
- Amphorometra conoidea4 sites
- Applinocrinus cretaceus4 sites
- Cardiaster granulosus4 sites
- Jaekelometra concava4 sites
- Leymeriaster4 sites
- Leymeriaster eluvialis4 sites
- Orthopsis miliaris4 sites
The Paleobiology Database records 10 sites for Trochalosoma, 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 4: Echinoids10
- Late Cretaceous macrofossils from Sinai, Egypt1
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 Trochalosoma 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 Trochalosoma, 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 itStomechinidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.