Anchura falciformis
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
- AnchuraPBDB
- Diet
- detritivore, suspension feederPBDB, for Anchura
- Life habit
- semi-infaunalPBDB, for Anchura
- Motility
- actively mobilePBDB, for Anchura
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 2.1 million years on record.
The record covers at least 85.7 Mya to 83.6 Mya. No occurrence read is dated outside 89.8 Mya to 72.2 Mya.
13 occurrences of Anchura falciformis 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
13 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
4 formations
- Chico Formation · Asuncion Group7
- Cedar District Formation2
- Ladd Formation2
- Panoche Formation · Great Valley Group1
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The named rock units Anchura falciformis 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.
Anchura falciformis and its relatives
Late CretaceousWhere Anchura falciformis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
110 taxa- Biplica obliqua5 sites
- Pterotrigonia evansana5 sites
- Glycymerita veatchii4 sites
- Volutoderma averillii4 sites
- Acila (Truncacila) demessa3 sites
- Baculites chicoensis3 sites
- Inoceramus subundatus3 sites
- Perissitys brevirostris3 sites
- Scaphander (Mirascapha) costatus3 sites
- Tessarolax distorta3 sites
- Ammonitida2 sites
- Astarte tuscana2 sites
- Atira ornatissima2 sites
- Baculites inornatus2 sites
- Calva (Calva) varians2 sites
- Caryocorbula traskii2 sites
- Clisocolus dubius2 sites
- Crassatella2 sites
- Cucullaea (Cyphoxis) truncata2 sites
- Cymbophora ashburnerii2 sites
- Gyrodes expansa2 sites
- Martesia clausa2 sites
- Neritina (Dostia) cuneata2 sites
- Sycodes glabra2 sites
The Paleobiology Database records 13 sites for Anchura falciformis, 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- Taxonomy and biostratigraphy of Coniacian through Maastrichtian Anchura (Gastropoda; Aporrhaiidae) of the North American Pacific slope6
- Upper Cretaceous of the Pacific Coast3
- Water depth indications from Late Cretaceous mollusks, Santa Ana Mountains, California2
- Description of the Cretaceous fossils2
Each of the 13 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 content2
Picture of Anchura falciformis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAnchura through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1864)