Astartella symmetrica
No picture of Astartella symmetrica was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Astartella symmetrica, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AstartellaPBDB
- Diet
- suspension feederPBDB, for Crassatelloidea
- Life habit
- infaunalPBDB, for Crassatelloidea
- Motility
- facultatively mobilePBDB, for Crassatelloidea
- Vision
- blindPBDB, for Crassatelloidea
- Environment
- marinePBDB, for Crassatelloidea
Time the record covers
At least 5.7 million years on record.
The record covers at least 259.857 Mya to 254.14 Mya. No occurrence read is dated outside 264.28 Mya to 251.902 Mya.
19 occurrences of Astartella symmetrica on record, most of them in the Permian. 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
19 occurrences- Permian100%
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
6 formations
- Longtan Formation8
- Xuanwei Formation2
- Loping Formation2
- Douling Formation2
- Shaiwa Formation2
- Changxing Formation1
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The named rock units Astartella symmetrica has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Astartella symmetrica and its relatives
PermianWhere Astartella symmetrica and its relatives were recorded in the Permian.
Found in the same rock
192 taxa- Palaeolima7 sites
- Pernopecten huayingshanensis7 sites
- Pernopecten sichuanensis7 sites
- Euchondria6 sites
- Streblochondria6 sites
- Nuculopsis wymmensis5 sites
- Palaeolima minima5 sites
- Palaeoneilo guizhouensis5 sites
- Etheripecten sichuanensis4 sites
- Guizhoupecten wangi4 sites
- Schizodus4 sites
- Aviculopecten3 sites
- Dystactella biarmica3 sites
- Edmondia3 sites
- Etheripecten3 sites
- Guizhoupecten regularis3 sites
- Liebea3 sites
- Nuculopsis darlingensis3 sites
- Palaeoneilo leiyangensis3 sites
- Permoperna trapezoidalis3 sites
- Schizodus pinguis3 sites
- Schizodus schlotheimi3 sites
- Stutchburia modioliformis3 sites
- Acanthopecten giganteus2 sites
The Paleobiology Database records 18 sites for Astartella symmetrica, 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
8 references- A new bivalve fauna from the Permian-Triassic boundary section of southwestern China4
- Yao et al., 19804
- Sedimentology and sequence stratigraphy of the Lopingian (Late Permian) coal measures in southwestern China2
- Late Permian deep water strata and bivalves of south Guizhou2
- Permian bivalves from the area of Guangzhou2
- Lamellibranchiata2
- Permian bivalves2
- Late Permian bivalves from Yuanjia of Jiahe, Hunan Province1
Each of the 19 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 content0
No picture of Astartella symmetrica was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Astartella symmetrica, or no answer at all. This entry cannot say which.
No 3D scan of Astartella symmetrica was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itAstartella through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Chen et al. 1974