Lithophaga
Searched as Lithophaga poolii. The Paleobiology Database treats Lithophaga as the accepted name.
Lithophaga, the date mussels, are a genus of medium-sized marine bivalve molluscs in the family Mytilidae. Some of the earliest fossil Lithophaga shells have been found in Mesozoic rocks from the Alps and from Vancouver Island.

GrahamBould · Public Domain · via Wikipedia/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
- Life habit
- boringPBDB
- Motility
- stationaryPBDB
- Vision
- blindPBDB, for Bivalvia
- Environment
- lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae
Time the record covers
At most 17 million years on record.
Every occurrence read is dated to somewhere between 346.7 Mya and 330.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Lithophaga on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
2 occurrences- Carboniferous100%
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
- Miller Creek and Wentworth Station Formation · Windsor Group1
- Murphy Road Formation · Windsor Group1
Loading coastlines…
The named rock units Lithophaga has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Lithophaga and its relatives
CarboniferousWhere Lithophaga and its relatives were recorded in the Carboniferous.
Found in the same rock
3,580 taxa- Serpula57 sites
- Turritella47 sites
- Bryozoa39 sites
- Ostrea39 sites
- Plagiostoma39 sites
- Anomia argentaria36 sites
- Nanogyra (Nanogyra) nana32 sites
- Nuculana32 sites
- Cardium31 sites
- Exogyra (Exogyra) costata31 sites
- Chlamys textoria30 sites
- Glycymeris30 sites
- Crenella serica29 sites
- Modiolus29 sites
- Syncyclonema29 sites
- Veniella conradi29 sites
- Crassatella vadosa28 sites
- Granocardium28 sites
- Pycnodonte vesicularis28 sites
- Arca26 sites
- Chlamys26 sites
- Cyprimeria26 sites
- Hamulus onyx26 sites
- Striarca26 sites
The Paleobiology Database records 481 sites for Lithophaga, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
1 referenceEach of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Lithophaga
- Source
- Wikipedia/Commons
- Credit
- GrahamBould
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Lithophaga 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.
The description on this site
- Source
- Wikipedia, “Lithophaga”
- 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 CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Röding 1798