Exogyra clarki

Rader, William · 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
- ExogyraPBDB
- Diet
- suspension feederPBDB, for Gryphaeidae
- Life habit
- epifaunalPBDB, for Gryphaeidae
- Motility
- stationary, attachedPBDB, for Gryphaeidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- marine,brackishPBDB, for Ostreida
Time the record covers
At most 6.6 million years on record.
Every occurrence read is dated to somewhere between 100.5 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Exogyra clarki 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
3 occurrences- Late Cretaceous100%
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
- Romiron Formation1
- Mojado Formation · Bisbee Group1
- Buda Limestone Formation1
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The named rock units Exogyra clarki has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Exogyra clarki and its relatives
Late CretaceousWhere Exogyra clarki and its relatives were recorded in the Late Cretaceous.
Found in the same rock
42 taxa- Mantelliceras2 sites
- Neithea texana2 sites
- Anatina austinensis1 site
- Anatina shattucki1 site
- Arctica mediale1 site
- Artica ? compacta1 site
- Budaiceras alticarinatum1 site
- Budaiceras elegantior1 site
- Budaiceras hyatti1 site
- Camptonectes (Camptonectes) cottaldinus1 site
- Cottaldia1 site
- Cymatoceras1 site
- Gervillia solenoidea1 site
- Granocardium (Criocardium) budaense1 site
- Graptocarcinus texanus1 site
- Hemiaster calvini1 site
- Heterodonta1 site
- Homomya1 site
- Homomya austinensis1 site
- Homomya budaensis1 site
- Lima1 site
- Lima wacoensis1 site
- Liopistha (Psilomya)1 site
- Mantelliceras saxbii1 site
The Paleobiology Database records 3 sites for Exogyra clarki, 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- Cretaceous bivalves from Ecuador and northern Peru1
- Ammonite Faunas of the Sarten Sandstone (Cretaceous), Luna County, New Mexico1
- The Mollusca of the Buda limestone, with an appendix on the corals of the Buda limestone, by Thomas Wayland Vaughan1
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 content1

Picture of Exogyra clarki
- Source
- GBIF
- Credit
- Rader, William
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Exogyra clarki 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 itExogyra through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Shattuck 1903