Astrorhiza
Henry Bowman Brady (1835-1891) · Public Domain · via Wikidata/Commons. 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
- AstrorhizidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- infaunalPBDB, for Textulariina
- Motility
- stationaryPBDB, for Foraminifera
Time the record covers
At least 253 million years on record.
The record covers at least 254.14 Mya to 290 ka. No occurrence read is dated outside 259.857 Mya to 0 Mya.
4 occurrences of Astrorhiza on record, most of them in the Eocene. The Paleobiology Database records this as a living group. 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
4 occurrences- Permian25%
- Eocene50%
- Pleistocene24%
- Holocene1%
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 Astrorhiza 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.
Astrorhiza and its relatives
EoceneWhere Astrorhiza and its relatives were recorded in the Eocene.
Found in the same rock
75 taxa- Haplophragmoides2 sites
- Mollusca2 sites
- Testudines2 sites
- Trochammina2 sites
- Acratia1 site
- Agathammina1 site
- Agathammina pusilla1 site
- Ammobaculites1 site
- Ammodiscus1 site
- Aves1 site
- Bairdia1 site
- Bairdia plebeia1 site
- Bairdiacypris1 site
- Basslerella1 site
- Botellina1 site
- Calcitornella1 site
- Cirripedia1 site
- Cornuspira1 site
- Coryellites1 site
- Cyclammina1 site
- Dentalina1 site
- Dorothia1 site
- Echinoidea1 site
- Elapidae1 site
The Paleobiology Database records 4 sites for Astrorhiza, 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- Report of field meeting Walton-on-the-Naze and Wrabness, Essex, 2.X, 1976 with notes on the London Clay of Walton2
- Site U13441
- Permskaya sistema Pribaltiki (fauna i stratigrafiya). Permian deposits of the Baltic region (stratigraphy and fauna)1
Each of the 4 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 Astrorhiza
- Source
- Wikidata/Commons
- Credit
- Henry Bowman Brady (1835-1891)
- Licence
- Public Domain
- Commercial use
- the licence allows it
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 itAstrorhizidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.