Arca (Arca) hatchetigbeensis

via GBIF · CC0 · via GBIF. 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
- Arca (Arca)PBDB
- Diet
- suspension feederPBDB, for Arca
- Life habit
- epifaunalPBDB, for Arca
- Motility
- stationary, attachedPBDB, for Arca
- Vision
- limitedPBDB, for Arcidae
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Arcidae
Time the record covers
At most 8 million years on record.
Every occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Arca (Arca) hatchetigbeensis on record, most of them in the Eocene. 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
6 occurrences- Eocene100%
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
2 formations
- Hatchetigbee Bluff Formation · Wilcox Group5
- Hatchetigbee Formation · Wilcox Group1
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The named rock units Arca (Arca) hatchetigbeensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Arca (Arca) hatchetigbeensis and its relatives
EoceneWhere Arca (Arca) hatchetigbeensis and its relatives were recorded in the Eocene.
Found in the same rock
95 taxa- Macrocallista5 sites
- Turritella5 sites
- Vokesula aldrichi5 sites
- Dentalium microstria4 sites
- Pitar4 sites
- Tellina4 sites
- Venericardia4 sites
- Athleta3 sites
- Calyptraea (Trochita) aperta3 sites
- Calyptraphorus3 sites
- Cyllene3 sites
- Ostrea3 sites
- Pelecyora3 sites
- Pseudoliva vetusta3 sites
- Sinum3 sites
- Barbatia (Cucullaearca) cuculloides2 sites
- Bullia altilis2 sites
- Bulliopsis2 sites
- Calorhadia2 sites
- Chlamys choctavensis2 sites
- Diplodonta2 sites
- Eburneopecten2 sites
- Epilucina2 sites
- Euspira marylandica2 sites
The Paleobiology Database records 5 sites for Arca (Arca) hatchetigbeensis, 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
4 references- Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain2
- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region2
- Little lasting impact of the Paleocene-Eocene Thermal Maximum on shallow marine mollusk faunas1
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda1
Each of the 6 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 content1

Picture of Arca (Arca) hatchetigbeensis
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Arca (Arca) hatchetigbeensis 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 itArca (Arca) through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Harris 1897)