Schizaster americana

Schizaster americana

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
SchizasterPBDB
Diet
deposit feeder, detritivorePBDB, for Spatangoida
Life habit
shallow infaunalPBDB, for Spatangoida
Motility
slow-movingPBDB, for Spatangoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Spatangoida

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 33.9 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 0 of 11 occurrencesOligocene — about 11 of 11 occurrencesOligoceneMiocene — about 0 of 11 occurrences34–34 Mya — about 0.5 occurrences34–33 Mya — about 0.6 occurrences33–33 Mya — about 0.6 occurrences33–32 Mya — about 0.6 occurrences32–32 Mya — about 0.6 occurrences32–32 Mya — about 0.6 occurrences32–31 Mya — about 0.6 occurrences31–31 Mya — about 0.6 occurrences31–30 Mya — about 0.6 occurrences30–30 Mya — about 0.6 occurrences30–30 Mya — about 0.6 occurrences30–29 Mya — about 0.6 occurrences29–29 Mya — about 0.6 occurrences29–28 Mya — about 0.6 occurrences28–28 Mya — about 0.6 occurrences28–28 Mya — about 0.6 occurrences28–27 Mya — about 0.6 occurrences27–27 Mya — about 0.0 occurrences27–26 Mya — about 0.0 occurrences26–26 Mya — about 0.0 occurrences26–26 Mya — about 0.0 occurrences26–25 Mya — about 0.0 occurrences25–25 Mya — about 0.0 occurrences25–25 Mya — about 0.0 occurrences25–24 Mya — about 0.0 occurrences24–24 Mya — about 0.0 occurrences24–23 Mya — about 0.0 occurrences23–23 Mya — about 0.0 occurrences34.4 Mya22.5 Mya

11 occurrences of Schizaster americana on record, most of them in the Oligocene. 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 occurrences

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

3 formations

Glendon — 31.11°N, 87.07°WGlendon — 31.86°N, 88.70°WGlendon — 32.26°N, 89.98°WSuwannee Limestone — 29.33°N, 83.14°WMarianna — 30.77°N, 85.23°W

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The named rock units Schizaster americana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Schizaster americana and its relatives

Oligocene

Where Schizaster americana and its relatives were recorded in the Oligocene.

Found in the same rock

10 taxa

The Paleobiology Database records 2 sites for Schizaster americana, 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

3 references

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. 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 Schizaster americana

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 of Schizaster americana 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 itSchizaster through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Clark and Twitchell 1915