Astrodapsis brewerianus

via iDigBio · 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
- AstrodapsisPBDB
- Diet
- detritivorePBDB, for Clypeasteroida
- Life habit
- semi-infaunalPBDB, for Clypeasteroida
- Motility
- slow-movingPBDB, for Clypeasteroida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At most 8.5 million years on record.
Every occurrence read is dated to somewhere between 13.82 Mya and 5.333 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Astrodapsis brewerianus on record, most of them in the Miocene. 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- Miocene100%
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 Astrodapsis brewerianus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Astrodapsis brewerianus and its relatives
MioceneWhere Astrodapsis brewerianus and its relatives were recorded in the Miocene.
Found in the same rock
11 taxa- Pacipecten discus3 sites
- Arca1 site
- Astrodapsis diabloensis1 site
- Astrodapsis whitneyi1 site
- Cerastoderma1 site
- Desmostylus hesperus1 site
- Haliotus palaea1 site
- Hinnites1 site
- Lima1 site
- Mytilus cf. kewi1 site
- Tegula1 site
The Paleobiology Database records 3 sites for Astrodapsis brewerianus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Geology of the eastern part of the Santa Monica Mountains, Los Angeles County, California2
- The West American Cenozoic Echinoidea1
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. 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 content1

Picture of Astrodapsis brewerianus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
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 itAstrodapsis through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Remond 1863)