Pinna expansa
No picture of Pinna expansa 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 Pinna expansa, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PinnaPBDB
- Diet
- suspension feederPBDB, for Pinna
- Life habit
- semi-infaunalPBDB, for Pinna
- Motility
- stationary, attachedPBDB, for Pinna
- Vision
- blindPBDB, for Bivalvia
- Environment
- marine,brackishPBDB, for Ostreida
Time the record covers
At most 59 million years on record.
Every occurrence read is dated to somewhere between 201.4 Mya and 143.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Pinna expansa on record, most of them in the Early Jurassic. 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
3 occurrencesThese 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 Pinna expansa 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.
Pinna expansa and its relatives
Early JurassicWhere Pinna expansa and its relatives were recorded in the Early Jurassic.
Found in the same rock
29 taxa- ? Sphaeroidochyria sp.1 site
- ? Variamusiua sp.1 site
- "Entollum" sp.1 site
- Amusium1 site
- Arctica1 site
- Arnioceras1 site
- Asteroceras1 site
- Bivalvia1 site
- Entolium meeki1 site
- Entollum sp.1 site
- Gervillia1 site
- Grammatodon1 site
- Gryphaea1 site
- Lima1 site
- Lingula1 site
- Lobothyris punctata1 site
- Ostrea1 site
- Pecten1 site
- Pectinidae1 site
- Plagiostoma1 site
- Pleuromya1 site
- Pleurotomaria1 site
- Plicatula1 site
- Pteria1 site
The Paleobiology Database records 3 sites for Pinna expansa, 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- Geology and Paleontology of the southwest quarter of the Big Bend Quadrangle, Shasta County, California2
- Map and table describing fossil collections and related samples in the Ketchikan and Prince Rupert Quadrangles, southeastern Alaska1
Each of the 3 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 Pinna expansa 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 Pinna expansa, or no answer at all. This entry cannot say which.
No 3D scan of Pinna expansa 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 itPinna through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1892