Miltha
Searched as Miltha promaucana crucialis. The Paleobiology Database treats Miltha as the accepted name.

via iDigBio · CC0 · 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
- MilthinaePBDB
- Diet
- chemosymbioticPBDB, for Lucinidae
- Life habit
- deep infaunalPBDB, for Lucinidae
- Motility
- facultatively mobilePBDB, for Lucinidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 33.9 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Miltha on record, most of them in the Oligocene. 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
3 occurrences- Oligocene100%
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.
Miltha and its relatives
OligoceneWhere Miltha and its relatives were recorded in the Oligocene.
Found in the same rock
3,472 taxa- Calotrophon ostrearum23 sites
- Glycymeris23 sites
- Lucinoma acutilineata21 sites
- Ostrea19 sites
- Turritella19 sites
- Anadara18 sites
- Balanus17 sites
- Tellina17 sites
- Chama16 sites
- Conus16 sites
- Dentalium15 sites
- Cerithium14 sites
- Nemocardium (Nemocardium) linteum14 sites
- Panopea generosa14 sites
- Trachycardium14 sites
- Venericardia14 sites
- Architectonica13 sites
- Chlamys13 sites
- Crassatella13 sites
- Here excavata13 sites
- Lucinisca nuttalli13 sites
- Calyptraea diegoana12 sites
- Crenomytilus expansus12 sites
- Lucina12 sites
The Paleobiology Database records 254 sites for Miltha, 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 3 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 Miltha
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Miltha 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 itMilthinae through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Adams and Adams 1857)