Myalina
Searched as Myalina tommasii obtusa. The Paleobiology Database treats Myalina 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
- MyalinidaePBDB
- Diet
- suspension feederPBDB, for Pteriomorphia
- Life habit
- epifaunalPBDB, for Pteriomorphia
- Motility
- facultatively mobilePBDB, for Pteriomorphia
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 5.6 million years on record.
The one occurrence read is dated to somewhere between 247 Mya and 241.464 Mya, which is a dating window rather than a span.
1 occurrence of Myalina on record, most of them in the Middle Triassic. 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
1 occurrences- Middle Triassic100%
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.
Myalina and its relatives
Middle TriassicWhere Myalina and its relatives were recorded in the Middle Triassic.
Found in the same rock
2,403 taxa- Aviculopecten45 sites
- Permophorus31 sites
- Derbyia30 sites
- Crinoidea29 sites
- Dielasma27 sites
- Edmondia25 sites
- Bryozoa22 sites
- Schizodus22 sites
- Trepostomata21 sites
- Composita19 sites
- Derbyia crassa19 sites
- Parajuresania nebrascensis19 sites
- Parallelodon19 sites
- Gastropoda17 sites
- Spirifer17 sites
- Linoproductus16 sites
- Naticopsis16 sites
- Orbiculoidea16 sites
- Platycrinites16 sites
- Composita subtilita15 sites
- Linoproductus prattenianus15 sites
- Bakevellia14 sites
- Bivalvia14 sites
- Chonetes14 sites
The Paleobiology Database records 389 sites for Myalina, and this reads 240 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
1 referenceEach of the 1 occurrence 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 content2

Picture of Myalina
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
Smithsonian Open Access was 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 itMyalinidae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. de Koninck 1842