Acutostrea
via iDigBio · CC BY · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- CrassostreiniPBDB
- Diet
- suspension feederPBDB, for Ostreidae
- Life habit
- epifaunalPBDB, for Ostreidae
- Motility
- stationary, attachedPBDB, for Ostreidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- hypersaline,marine,brackishPBDB, for Ostreidae
Time the record covers
At least 70 million years on record.
The record covers at least 93.9 Mya to 23.04 Mya. No occurrence read is dated outside 100.5 Mya to 15.98 Mya.
235 occurrences of Acutostrea 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
235 occurrences- Late Cretaceous63%
- Paleocene2%
- Eocene31%
- Oligocene3%
- Mioceneunder 1%
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
55 formations
- Prairie Bluff Formation · Selma Group22
- Cowlitz Formation13
- Mooreville Chalk Formation · Selma Group12
- Delmar Formation · La Jolla Group10
- Peedee Formation9
- Llajas Formation8
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The named rock units Acutostrea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 31 further formations hold fewer occurrences each and are not listed. 56 occurrences have no formation on record, which is common for older literature.
Acutostrea and its relatives
Late CretaceousWhere Acutostrea and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,514 taxa- Anomia argentaria57 sites
- Exogyra (Exogyra) costata51 sites
- Nuculana46 sites
- Gryphaeostrea vomer43 sites
- Veniella conradi43 sites
- Idonearca capax41 sites
- Pycnodonte vesicularis41 sites
- Crassatella vadosa38 sites
- Cyprimeria38 sites
- Crenella serica33 sites
- Syncyclonema32 sites
- Bryozoa31 sites
- Cubitostrea tecticosta31 sites
- Nucula percrassa31 sites
- Serpula31 sites
- Cymbophora30 sites
- Granocardium30 sites
- Cliona29 sites
- Legumen ellipticum29 sites
- Linearis29 sites
- Pterotrigonia (Scabrotrigonia)29 sites
- Turritella28 sites
- Aphrodina27 sites
- Liopistha protexta27 sites
The Paleobiology Database records 221 sites for Acutostrea, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
57 references- Cretaceous deposits of the eastern gulf region and species of Exogyra from the eastern gulf region and the Carolinas27
- Unpublished data on Cretaceous-Paleocene molluscan assemblages26
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain23
- Tertiary faunal horizons of western Washington23
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain9
- Eocene molluscan stages and their correlation, San Diego area, California8
- Middle Eocene brackish-marine mollusks from the Matilija Sandstone at Matilija Hot Springs, Ventura County, Southern California7
- Megapaleontology of the Eocene Llajas Formation, Simi Valley, California7
- The Black Creek-Peedee formational contact (Upper Cretaceous) in the Cape Fear river region of North Carolina7
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf6
- Maastrichtian non-cephalopod mollusks: Scaphopoda, Gastropoda and Bivalvia of the Middle Vistula Valley, central Poland6
- Fauna from the Eocene of Washington6
Each of the 235 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. 45 further references are not listed. 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 content1
Picture of Acutostrea
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCrassostreini through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Vyalov 1936