Mytilopsis leucophaeata
Mytilopsis leucophaeata is a species of small bivalve mollusc in the false mussel family, Dreissenidae. It is commonly known as Conrad's false mussel or the dark false mussel.

Uncredited · 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
- MytilopsisPBDB
- Diet
- suspension feederPBDB, for Mytilopsis
- Life habit
- epifaunalPBDB, for Mytilopsis
- Motility
- stationary, attachedPBDB, for Mytilopsis
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 762 thousand years on record.
The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.
5 occurrences of Mytilopsis leucophaeata on record. 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
5 occurrences- Pleistocene40%
- Holocene60%
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
- Deltaic Mud Formation1
- New Orleans Barrier Trend Formation1
- Mount Hope Formation1
- Fort Thompson Formation1
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The named rock units Mytilopsis leucophaeata 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.
Found in the same rock
155 taxa- Anomalocardia cuneimeris3 sites
- Crassostrea virginica3 sites
- Littoraria irrorata3 sites
- Neritina virginea3 sites
- Rangia (Rangia) cuneata3 sites
- Abra aequalis2 sites
- Acteocina canaliculata2 sites
- Aligena texasiana2 sites
- Anadara (Cunearca) brasiliana2 sites
- Anadara (Larkinia) transversa2 sites
- Angulus texanus2 sites
- Anodontia alba2 sites
- Anomia simplex2 sites
- Arcinella cornuta2 sites
- Argopecten gibbus2 sites
- Astyris lunata2 sites
- Atrina serrata2 sites
- Balcis2 sites
- Bittiolum varium2 sites
- Boonea impressa2 sites
- Boonea seminuda2 sites
- Brachidontes exustus2 sites
- Busycon spiratum plagosum2 sites
- Caecum imbricatum2 sites
The Paleobiology Database records 4 sites for Mytilopsis leucophaeata, 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- Stratigraphy of newly exposed Quaternary seduments, eastern Orleans Parish, Louisiana2
- Mollusca: Fort Thompson Formation (Late Pleistocene)1
- Stratigraphy of newly exposed Quaternary sediments, eastern Orleans Parish, Louisiana1
- Two collections of Pleistocene fossils from the Isthmus of Panama1
Each of the 5 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Mytilopsis leucophaeata
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Mytilopsis leucophaeata 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
- 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 itMytilopsis through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1831)