Aulacomya
Aulacomya is a genus of edible saltwater mussels, marine bivalve molluscs in the family Mytilidae, the true mussels.

Rodrigo Fernández · CC BY-SA 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
- MytilidaePBDB
- Diet
- suspension feederPBDB, for Mytilidae
- Life habit
- epifaunalPBDB, for Mytilidae
- Motility
- stationary, attachedPBDB, for Mytilidae
- Vision
- blindPBDB, for Bivalvia
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae
Time the record covers
At least 251 million years on record.
The record covers at least 251.902 Mya to 11.7 ka. No occurrence read is dated outside 259.857 Mya to 0 Mya.
43 occurrences of Aulacomya on record, most of them in the Eocene. The Paleobiology Database records this as a living group. 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
43 occurrences- Permian2%
- Early Jurassic12%
- Late Jurassicunder 1%
- Early Cretaceous2%
- Paleocene5%
- Eocene23%
- Oligocene10%
- Miocene6%
- Pliocene5%
- Pleistocene23%
- Holocene12%
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
13 formations
- La Meseta Formation9
- San Julian Formation2
- Kauru Formation · Fuchsia Group2
- San Julián Formation2
- Borgloon Formation · Tongeren Group2
- Whitby Mudstone Formation2
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The named rock units Aulacomya has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.
Aulacomya and its relatives
EoceneWhere Aulacomya and its relatives were recorded in the Eocene.
Found in the same rock
411 taxa- Saxolucina sharmani7 sites
- Eurhomalea newtoni6 sites
- Antarctodarwinella ellioti5 sites
- Eucrassatella wilckensi5 sites
- Fissurella5 sites
- Patella5 sites
- Polinices (Polinices) subtenuis5 sites
- Sudonassarius antarctohimaleos5 sites
- Arca4 sites
- Australoneilo rossi4 sites
- Austroficopsis wimani4 sites
- Buccinum digitale4 sites
- Burnupena4 sites
- Chiton4 sites
- Conus4 sites
- Corbula4 sites
- Eoscaphella fordycei4 sites
- Lahillia wilckensi4 sites
- Mactra irizari4 sites
- Nuculana4 sites
- Scutellastra barbara4 sites
- Steinmannia4 sites
- Tellina4 sites
- Turritella (Torquesia) carinifera4 sites
The Paleobiology Database records 25 sites for Aulacomya, 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
19 references- Molluscan Systematics and Biostratigraphy9
- Tertiary Marine Molluscan Assemblages of Eastern Patagonia (Argentina): A Biostratigraphic Analysis5
- Paleoenvrionments and paleoclimates of the Quaternary molluscan faunas from the coastal area of Bahía Vera-Camarones (Chubut, Patagonia)3
- Paleoecologia de moluscos marinos del Holoceno medio de Isla Gable, Canal Beagle, Tierra del Fuego, Argentina3
- Late Tertiary and Early Quaternary Fossil Mollusca for the Hondeklip Area, Cape Province, South Africa3
- Revised list of South African late Tertiary and Pleistocene marine Mollusca3
- The molluscan fauna of the Borgloon Formation in Belgium (Rupelian, Early Oligocene)2
- Late Triassic and early Jurassic biostratigraphy of the Felixkirk Borehole, North Yorkshire2
- Pleistocene shorelines in the Western Cape and South-West Africa2
- The Geology of the Waitaki Subdivision2
- Moluscos bivalves da Formação de Água de Madeiros (Sinemuriano superior) da Bacia Lusitânica (Portugal)1
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
Each of the 43 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. 7 further references are not listed. 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 Aulacomya
- Source
- Wikidata/Commons
- Credit
- Rodrigo Fernández
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Aulacomya”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMytilidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Mörch 1853