Drepanaster
No picture of Drepanaster was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Drepanaster, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ProtasteridaePBDB
- Diet
- detritivore, suspension feederPBDB, for Ophiuroidea
- Life habit
- low-level epifaunalPBDB, for Ophiuroidea
- Motility
- slow-movingPBDB, for Ophiuroidea
- Vision
- blindPBDB, for Ophiuroidea
- Environment
- marinePBDB, for Ophiuroidea
Time the record covers
At least 80 million years on record.
The record covers at least 445.2 Mya to 365.2 Mya. No occurrence read is dated outside 448.8 Mya to 358.86 Mya.
5 occurrences of Drepanaster on record, most of them in the Devonian. 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
5 occurrences- Ordovician20%
- Devonian80%
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
4 formations
- Pilton Mudstone Formation2
- Voorstehoek Formation · Bokkeveld Group1
- Pilton Shales Formation1
- South Threave Formation · Drummock Group1
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The named rock units Drepanaster has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Drepanaster and its relatives
DevonianWhere Drepanaster and its relatives were recorded in the Devonian.
Found in the same rock
99 taxa- Adelocrinus hystrix2 sites
- Crinoidea2 sites
- Oehlerticrinus anguliferus2 sites
- Rhodocrinites2 sites
- Actinodiscus wrighti1 site
- Anchiopella1 site
- Anulocrinus1 site
- Arjamannia thraivensis1 site
- Aulacella interlineata1 site
- Aulechinus1 site
- Australospirifer1 site
- Blastoidea1 site
- Boucotspira ordovicus1 site
- Bucanopsis nicoli1 site
- Burmeisteria1 site
- Carcassonnella multilineata1 site
- Cataschisma convexa1 site
- Cheirocrinus constrictus1 site
- Clisospira reticulata1 site
- Cnemidactis girvanensis1 site
- Conularia1 site
- Cothurnocystis elizae1 site
- Crurithyris1 site
- Cymbularia drummuckensis1 site
The Paleobiology Database records 5 sites for Drepanaster, 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
5 references- Skeletal homologies, phylogeny and classification of the earliest asterozoan echinoderms1
- Edmonds et al., 19851
- Preliminary catalogue and report on the biostratigraphy and palaeogeographic distribution of the Bokkeveld fauna1
- A monograph of the Devonian fauna of the south of England. Vol. III - Pt. III. The fauna of the Marwood and Pilton Beds1
- A preliminary synopsis of the fauna of the Pickwell Down, Baggy and Pilton Beds1
Each of the 5 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 Drepanaster was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Drepanaster, or no answer at all. This entry cannot say which.
No 3D scan of Drepanaster 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 itProtasteridae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Whidborne 1898)