Schizosteus
No picture of Schizosteus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Schizosteus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HeterostraciPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At least 5.5 million years on record.
The record covers at least 393.47 Mya to 387.95 Mya. No occurrence read is dated outside 410.62 Mya to 382.31 Mya.
20 occurrences of Schizosteus on record, most of them in the Devonian. 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
20 occurrences- Devonian100%
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
9 formations
- Narva Formation3
- Aruküla Formation2
- Vstrechnaya Formation1
- Pärnu Formation1
- Narva Formation1
- Polotsk Formation1
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The named rock units Schizosteus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Schizosteus and its relatives
DevonianWhere Schizosteus and its relatives were recorded in the Devonian.
Found in the same rock
109 taxa- Glyptolepis10 sites
- Byssacanthus dilatatus8 sites
- Actinolepis tuberculata7 sites
- Orvikuina7 sites
- Asterolepis estonica6 sites
- Cheirolepis6 sites
- Cephalaspidida5 sites
- Homostius latus5 sites
- Orvikuina vardiaensis5 sites
- Pycnosteus5 sites
- Tartuosteus5 sites
- Acanthodes4 sites
- Cheiracanthus4 sites
- Diplacanthus4 sites
- Asterolepis3 sites
- Cheiracanthus brevicostatus3 sites
- Coccosteus cuspidatus3 sites
- Dipterus serratus3 sites
- Ganosteus3 sites
- Gyroptychius3 sites
- Haplacanthus marginalis3 sites
- Osteolepididae3 sites
- Psammolepis3 sites
- Psammosteus3 sites
The Paleobiology Database records 19 sites for Schizosteus, 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
9 references- The Middle Devonian fishes of the Baltic States (Estonia, Latvia) and Belarus8
- A new species of the Devonian actinopterygian fish Moythomasia from Belarus3
- A new species of ray-finned fish (Osteichthyes, Actinopterygii) from the upper Emsian and lowermost Eifelian deposits of Belarus2
- Psammosteiformes (Agnatha). A review with descriptions of new material from the Lower Devonian of Poland2
- Palaeozoogeographical connections of the Devonian vertebrate communities of the Baltica Province. Part I. Eifelian–Givetian1
- Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications1
- Devonian psammosteids (Agnatha, Psammosteidae) of the USSR1
- Die Fische des baltischen Devons1
- Psammosteus (Ganosteus) perneri n. sp. Příspěvek ku poznáni ryb českého paleozoika1
Each of the 20 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Schizosteus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Schizosteus, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHeterostraci through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Obruchev 1940