Amecystis laevis
via iDigBio · CC0 · 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
- AmecystisPBDB
- Diet
- suspension feederPBDB, for Rhombifera
- Life habit
- intermediate-level epifaunalPBDB, for Rhombifera
- Motility
- stationary, attachedPBDB, for Rhombifera
- Vision
- blindPBDB, for Rhombifera
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 1 million years on record.
The record covers at least 453.8 Mya to 452.8 Mya. No occurrence read is dated outside 457.3 Mya to 445.2 Mya.
4 occurrences of Amecystis laevis on record, most of them in the Ordovician. 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- Ordovician100%
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
- Edinburg Formation1
- Bobcaygeon Formation · Simcoe Group1
- Pont-Rouge Formation1
- Lexington Limestone Formation1
Loading coastlines…
The named rock units Amecystis laevis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amecystis laevis and its relatives
OrdovicianWhere Amecystis laevis and its relatives were recorded in the Ordovician.
Found in the same rock
9 taxa- Amygdalocystites florealis1 site
- Cincinnaticrinus varibrachialus1 site
- Cleiocrinus lepidotus1 site
- Cleiocrinus regius1 site
- Cremacrinus guttenbergensis1 site
- Cremacrinus inaequalis1 site
- Hybocrinus tumidus1 site
- Hybocystites problematicus1 site
- Sertulaster keslingi1 site
The Paleobiology Database records 4 sites for Amecystis laevis, 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- Revision of the North American Pleurocystitidae (Rhombifera-Cystoidea)3
- Echinoderms from Middle and Upper Ordovician rocks of Kentucky1
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 Amecystis laevis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Amecystis laevis 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 itAmecystis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Raymond 1921)