Semiometra lenticularis
No picture of Semiometra lenticularis 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 Semiometra lenticularis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SemiometraPBDB
- Diet
- suspension feederPBDB, for Comatulida
- Life habit
- intermediate-level epifaunalPBDB, for Comatulida
- Motility
- facultatively mobile, attachedPBDB, for Comatulida
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Comatulida
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 61.66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Semiometra lenticularis on record, most of them in the Late Cretaceous. 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- Late Cretaceous84%
- Paleocene16%
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
Loading coastlines…
The named rock units Semiometra lenticularis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Semiometra lenticularis and its relatives
Late CretaceousWhere Semiometra lenticularis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
75 taxa- Felderophiura vanderhami5 sites
- Hemipneustes striatoradiatus5 sites
- Jaekelometra belgica5 sites
- Jaekelometra concava5 sites
- Salenidia maestrichtensis5 sites
- Goniasteridae4 sites
- Hemiaster (Bolbaster) prunella4 sites
- Metopaster4 sites
- Nielsenicrinus ewaldi4 sites
- Orthopsis miliaris4 sites
- Procassidulus lapiscancri4 sites
- Rhynchopygus marmini4 sites
- Semiometra saskiae4 sites
- Temnocidaris4 sites
- Trichaster ornatus4 sites
- Trochalosoma4 sites
- Amphorometra conoidea3 sites
- Cardiaster granulosus3 sites
- Codiopsis3 sites
- Hemiaster3 sites
- Leymeriaster3 sites
- Phymotaxis3 sites
- Rhyncholampas3 sites
- Valettaster ocellatus3 sites
The Paleobiology Database records 5 sites for Semiometra lenticularis, 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
1 referenceEach 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Semiometra lenticularis 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 Semiometra lenticularis, or no answer at all. This entry cannot say which.
No 3D scan of Semiometra lenticularis 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 itSemiometra through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Rasmussen 1961)