Galeaster
via iDigBio · CC BY · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- HolasteridaePBDB
- Diet
- detritivorePBDB, for Holasteroida
- Life habit
- semi-infaunalPBDB, for Holasteroida
- Motility
- actively mobilePBDB, for Holasteroida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Holasteroida
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 61.66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Galeaster 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
3 occurrences- Late Cretaceous33%
- Paleocene67%
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
2 formations
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The named rock units Galeaster 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.
Galeaster and its relatives
PaleoceneWhere Galeaster and its relatives were recorded in the Paleocene.
Found in the same rock
29 taxa- <cidarid>1 site
- Acanthechinus1 site
- Adelopneustes akkajensis1 site
- Adelopneustes boehmi1 site
- Adelopneustes montainvillensis1 site
- Clypeolampas ovatus1 site
- Coenholectypus1 site
- Coraster vilanovae1 site
- Cottreaucorys1 site
- Cyclaster1 site
- Cyclaster aturicus1 site
- Echinocorys1 site
- Echinocorys scutata1 site
- Echinogalerus1 site
- Hemiaster1 site
- Hemiaster (Bolbaster) prunella1 site
- Hemiaster stella1 site
- Hemipneustes1 site
- Homoeaster evaristei1 site
- Isaster aquitanicus1 site
- Linthia houzeaui1 site
- Nucleopygus1 site
- Orthaster1 site
- Orthaster dagestanensis1 site
The Paleobiology Database records 3 sites for Galeaster, 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- Cottreaucorys kollmanni n. sp. (Echinodermata: Echinoidea) and other new records from the Early Paleocene Bruderndorf Formation in Austria1
- Late Cretaceous-early Tertiary echinoids from northern Spain: implications for the Cretaceous-Tertiary extinction event1
- All Change at the Cretaceous-Tertiary Boundary? Echinoids from the Maastrichtian and Danian of the Mangyshlak Peninsula, Kazakhstan1
Each of the 3 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 content1
Picture of Galeaster
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Galeaster 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 itHolasteridae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.