Strophomena occidentalis
No picture of Strophomena occidentalis 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 Strophomena occidentalis, 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 5.5 million years on record.
Every occurrence read is dated to somewhere between 451 Mya and 445.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Strophomena occidentalis 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
- Scales Shale Formation · Maquoketa Group3
- Portage Chute Formation · Bad Cache Rapids Group1
- Caution Creek Formation · Churchill River Group1
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The named rock units Strophomena occidentalis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Strophomena occidentalis and its relatives
OrdovicianWhere Strophomena occidentalis and its relatives were recorded in the Ordovician.
Found in the same rock
47 taxa- Austinella kankakensis3 sites
- Diceromyonia3 sites
- Eoplectodonta3 sites
- Flexicalymene (Flexicalymene) senaria3 sites
- Glyptorthis bellarugosa3 sites
- Glyptorthis insculpta3 sites
- Heterorthina emacerata3 sites
- Hiscobeccus capax3 sites
- Isotelus susae3 sites
- Lingulops3 sites
- Megamyonia unicostata3 sites
- Orbiculoidea3 sites
- Paucicrura corpulenta3 sites
- Plaesiomys proavita3 sites
- Plaesiomys subquadratus3 sites
- Rafinesquina deltoidea3 sites
- Rafinesquina trentonensis3 sites
- Strophomena trilobata3 sites
- Thaerodonta recedens3 sites
- Zygospira modesta3 sites
- Bumastus orbicaudatus2 sites
- Ceraurinus icarus2 sites
- Ceraurus pleurexanthemus2 sites
- Eomonorachus intermedius2 sites
The Paleobiology Database records 5 sites for Strophomena occidentalis, 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
3 references- Late Ordovician brachiopods and biostratigraphy of the Hudson Bay Lowlands, northern Manitoba and Ontario2
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities2
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area1
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 Strophomena occidentalis 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 Strophomena occidentalis, or no answer at all. This entry cannot say which.
No 3D scan of Strophomena occidentalis was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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. (Foerste 1912)