Schizodus depressus

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
- SchizodusPBDB
- Diet
- suspension feederPBDB, for Trigoniida
- Life habit
- infaunalPBDB, for Trigoniida
- Motility
- facultatively mobilePBDB, for Trigoniida
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 14 million years on record.
Every occurrence read is dated to somewhere between 335.4 Mya and 321.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Schizodus depressus on record, most of them in the Carboniferous. 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
9 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
5 formations
- Amsden Formation3
- Reynolds Limestone Formation · Mauch Chunk Group3
- Bluestone Formation1
- Hinton Formation1
- Lilydale Shale Formation · Mauch Chunk Group1
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The named rock units Schizodus depressus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Schizodus depressus and its relatives
CarboniferousWhere Schizodus depressus and its relatives were recorded in the Carboniferous.
Found in the same rock
64 taxa- Edmondia5 sites
- Sphenotus monroensis5 sites
- Aviculopecten batesvillensis4 sites
- Leptodesma (Leptodesma) matheri4 sites
- Sanguinolites unioniformis4 sites
- Solenomorpha nitida4 sites
- Aviculopecten3 sites
- Cypricardella3 sites
- Limipecten greerensis3 sites
- Paleyoldia3 sites
- Prothyris (Prothyris) acuticarinata3 sites
- Sedgwickia3 sites
- Wilkingia walkeri3 sites
- Aviculopecten crenistriatus2 sites
- Carlinia2 sites
- Composita sigma2 sites
- Ectogrammysia inaffecta2 sites
- Ectogrammysia prolata2 sites
- Edmondia equilateralis2 sites
- Eumetria2 sites
- Leptodesma2 sites
- Nuculavus okawensis2 sites
- Nuculopsis2 sites
- Paleyoldia levistriata2 sites
The Paleobiology Database records 9 sites for Schizodus depressus, 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
3 references- Bivalves (Mollusca) from the Mauch Chunk Group (Mississippian, Chesterian) of northern West Virginia and southwestern Pennsylvania4
- Stratigraphy and geologic history of the Amsden Formation (Mississippian and Pennsylvanian) of Wyoming3
- Mississippian (Chesterian) bivalves from the Pennsylvanian stratotype area in West Virginia and Virginia2
Each of the 9 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 Schizodus depressus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Schizodus depressus 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 itSchizodus through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Worthen 1884