Strophomena dignata
No picture of Strophomena dignata was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Strophomena dignata itself, so it was not used. 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 Strophomena dignata, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StrophomenaPBDB
- Diet
- suspension feederPBDB, for Strophomenida
- Life habit
- epifaunalPBDB, for Strophomenida
- Motility
- stationaryPBDB, for Strophomenida
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 8.7 million years on record.
Every occurrence read is dated to somewhere between 458.2 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Strophomena dignata 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
5 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
3 formations
- Bobcaygeon Formation · Simcoe Group2
- Verulam Formation · Simcoe Group2
- Barnhart Formation1
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The named rock units Strophomena dignata has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Strophomena dignata and its relatives
OrdovicianWhere Strophomena dignata and its relatives were recorded in the Ordovician.
Found in the same rock
198 taxa- Anazyga recurvirostra4 sites
- Cyrtostropha salteri4 sites
- Hormotoma gracilis4 sites
- Omospira trentonensis4 sites
- Opikina platys4 sites
- Opikina rugosa4 sites
- Paucicrura rogata4 sites
- Rafinesquina4 sites
- Rafinesquina alternata alata4 sites
- Rhynchotrema increbescens4 sites
- Sinuites cancellatus4 sites
- Sowerbyella (Sowerbyella) sericea4 sites
- Sowerbyella curdsvillensis4 sites
- Alaskadiscus disculus3 sites
- Ambonychia3 sites
- Bathyurus (Raymondites) ingalli3 sites
- Bumastus3 sites
- Ceraurus pleurexanthemus3 sites
- Ctenodonta nasuta3 sites
- Dalmanella whittakeri3 sites
- Dekayella3 sites
- Dinorthis pectinella3 sites
- Eccyliopterus ottawaensis3 sites
- Gabriceraurus dentatus3 sites
The Paleobiology Database records 5 sites for Strophomena dignata, 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
2 references- Palaeozoic geology of the Lake Simcoe Area, Ontario4
- Forms of Strophomena from Black River and Richmond Formations1
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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Strophomena dignata was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Strophomena dignata itself, so it was not used.
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 Strophomena dignata, or no answer at all. This entry cannot say which.
No 3D scan of Strophomena dignata 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 itStrophomena through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fenton 1928