Callistalox fragilis
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
- CallistaloxPBDB
- Diet
- suspension feederPBDB, for Veneridae
- Life habit
- infaunalPBDB, for Veneridae
- Motility
- facultatively mobilePBDB, for Veneridae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
16 occurrences of Callistalox fragilis 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
16 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
2 formations
- Moreno Formation · Great Valley Group15
- El Piojo Formation1
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The named rock units Callistalox fragilis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Callistalox fragilis and its relatives
Late CretaceousWhere Callistalox fragilis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
54 taxa- Turritella chaneyi11 sites
- Glycymerita veatchii9 sites
- Anomia8 sites
- Cucullaea (Idonearca)8 sites
- Polinices8 sites
- Septifer7 sites
- Bulbificopsis garza5 sites
- Calva (Calva) varians5 sites
- Exogyra5 sites
- Meekia (Meekia) sella5 sites
- Pyktes hamulus5 sites
- Priscoficus4 sites
- Pycnodonte (Pycnodonte)4 sites
- Aguileria3 sites
- Cardiidae3 sites
- Clisocolus dubius3 sites
- Cymbophora ashburnerii3 sites
- Ostrea3 sites
- Perissitys stantoni3 sites
- Biplica2 sites
- Cymbophora2 sites
- Dentalium2 sites
- Glycymeris2 sites
- Glycymerita banosensis2 sites
The Paleobiology Database records 16 sites for Callistalox fragilis, 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- Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results13
- Pacific Slope Cretaceous bivalves: eight venerid species2
- Mollusks of Latest Cretaceous and Paleocene Age, Lake Nacimiento, California1
Each of the 16 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 Callistalox fragilis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Callistalox fragilis 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 itCallistalox through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1869)