Tujiaaspis vividus
Tujiaaspis is an extinct genus of eugaleaspidiform, a group of armored jawless fish, from the Huixingshao Formation of China. It contains one species, Tujiaaspis vividus, which lived 436 million years ago, during the Telychian age of the Silurian period.

Kylinxia · CC BY-SA 4.0 · 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
- TujiaaspisPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At most 5.7 million years on record.
Every occurrence read is dated to somewhere between 438.6 Mya and 432.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Tujiaaspis vividus on record, most of them in the Silurian. 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
2 occurrences- Silurian100%
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
1 formation
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The named rock units Tujiaaspis vividus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Tujiaaspis vividus and its relatives
SilurianWhere Tujiaaspis vividus and its relatives were recorded in the Silurian.
Found in the same rock
5 taxa- Hughmilleria wangi1 site
- Miaojiaaspis dichotomus1 site
- Shenacanthus vermiformis1 site
- Xiushanosteus mirabilis1 site
- Yongdongaspis littoralis1 site
The Paleobiology Database records 2 sites for Tujiaaspis vividus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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 2 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 Tujiaaspis vividus
- Source
- Wikipedia/Commons
- Credit
- Kylinxia
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Tujiaaspis vividus 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
- Source
- Wikipedia, “Tujiaaspis”
- 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 itTujiaaspis through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gai et al. 2022