Plaesiomys occidentalis
No picture of Plaesiomys 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 Plaesiomys occidentalis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlaesiomysPBDB
- Diet
- suspension feederPBDB, for Plaesiomyidae
- Life habit
- epifaunalPBDB, for Plaesiomyidae
- Motility
- stationary, attachedPBDB, for Plaesiomyidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 7.6 million years on record.
Every occurrence read is dated to somewhere between 452.8 Mya and 445.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Plaesiomys 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 Group2
- Brainard Formation · Maquoketa Group1
- Lower Whittaker Formation1
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The named rock units Plaesiomys occidentalis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Plaesiomys occidentalis and its relatives
OrdovicianWhere Plaesiomys occidentalis and its relatives were recorded in the Ordovician.
Found in the same rock
18 taxa- Brevilamnulella1 site
- Drepanoistodus suberectus1 site
- Eochonetes magna1 site
- Eoplectodonta1 site
- Hesperorthis pyramidalis1 site
- Holtedahlina1 site
- Hypsiptycha argenturbicum1 site
- Lepidocyclus perlamellosa1 site
- Leptaena1 site
- Oulodus1 site
- Panderodus feulneri1 site
- Platyrhomboides1 site
- Pseudobelodina vulgaris1 site
- Rhynchotrema iowense1 site
- Schmidtella1 site
- Strophomena1 site
- Tcherskidium1 site
- Whitfieldella1 site
The Paleobiology Database records 5 sites for Plaesiomys occidentalis, 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
4 references- Phylogenetic revision of the Late Ordovician orthid brachiopod genera Plaesiomys and Hebertella from Laurentia2
- Late Ordovician brachiopods from east-central Alaska, northwestern margin of Laurentia1
- Upper Ordovician conodonts, brachiopods, and chronostratigraphy of the Whittaker Formation, southwestern District of Mackenzie, N. W. T., Canada1
- The stratigraphy and paleontology of the Maquoketa shale of Iowa1
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 Plaesiomys 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 Plaesiomys occidentalis, or no answer at all. This entry cannot say which.
No 3D scan of Plaesiomys occidentalis 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 itPlaesiomys through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Ladd 1929)