Alleinacin sulcata
Searched as Astarte sulcata. The Paleobiology Database treats Alleinacin sulcata as the accepted name.

Georges Jansoone ( JoJan ) · CC BY 3.0 · via Wikidata/Commons. 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
- AlleinacinPBDB
- Diet
- suspension feederPBDB, for Crassatelloidea
- Life habit
- infaunalPBDB, for Crassatelloidea
- Motility
- facultatively mobilePBDB, for Crassatelloidea
- Vision
- blindPBDB, for Crassatelloidea
- Environment
- marinePBDB, for Crassatelloidea
Time the record covers
At least 93 million years on record.
The record covers at least 93.9 Mya to 129 ka. No occurrence read is dated outside 100.5 Mya to 11.7 ka.
19 occurrences of Alleinacin sulcata 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
19 occurrencesThese 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
7 formations
- Ladd Formation12
- Presumpscot Formation1
- Holderness Formation1
- Red Crag Formation1
- Mammaliferous Crag Formation1
- Wexford Gravels Formation1
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The named rock units Alleinacin sulcata 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.
Alleinacin sulcata and its relatives
Late CretaceousWhere Alleinacin sulcata and its relatives were recorded in the Late Cretaceous.
Found in the same rock
54 taxa- Trigonarca californica8 sites
- Subprionocyclus6 sites
- Glycymeris pacifica5 sites
- Isocardia delta5 sites
- Ampullina pseudoalveata4 sites
- Liopistha anaana4 sites
- Alarimella veta3 sites
- Calva (Calva) regina3 sites
- Inoperna bellarugosa3 sites
- Lima (Acesta) beta3 sites
- Pinna calamitoides3 sites
- Syncyclonema operculiformis3 sites
- Trochactaeon (Trochactaeon) packardi3 sites
- Dentalium (Entalis) whiteavesi2 sites
- Gyrodes (Gyrodes) dowelli2 sites
- Hemiaster californicus2 sites
- Paraesa zeta2 sites
- Plicatula modjeskaensis2 sites
- Pterotrigonia klamathonia2 sites
- Stirpulina saulae2 sites
- Subprionocyclus neptuni2 sites
- Tenea inflata2 sites
- Turritella hearni2 sites
- Volsella siskiyouensis2 sites
The Paleobiology Database records 12 sites for Alleinacin sulcata, 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
11 references- Upper Cretaceous formations and faunas of southern California5
- Late Cretaceous paleoecology of the Holz Shale, Orange County, California3
- Wood, 18503
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
- Three new Turonian muricacean gastropods from the Santa Ana Mountains, Southern California1
- A Turonian Clavagellid (Bivalvia) from the Ladd Formation of Southern California1
- Presenza di «Ospiti boreali» (Mollusca, Gastropoda) nel Pleistocene di Contrada Case Alte (Villa S. Giovanni)1
- Water depth indications from Late Cretaceous mollusks, Santa Ana Mountains, California1
- The Mollusca of the Wexford Gravels (Pleistocene), South-East Ireland1
- Geology of Reef Ridge Coalinga district California1
- New species from the Cretaceous of the Santa Ana Mountains, California1
Each of the 19 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 Alleinacin sulcata
- Source
- Wikidata/Commons
- Credit
- Georges Jansoone ( JoJan )
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Alleinacin sulcata 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 itAlleinacin through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Packard 1922)