Tretaspis anderssoni
No picture of Tretaspis anderssoni was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Tretaspis anderssoni, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TretaspisPBDB
- Diet
- suspension feederPBDB, for Trinucleidae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- limitedPBDB, for Tretaspis
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 300 thousand years on record.
The record covers at least 449.5 Mya to 449.2 Mya. No occurrence read is dated outside 450.5 Mya to 445.2 Mya.
5 occurrences of Tretaspis anderssoni on record, most of them in the Ordovician. 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
5 occurrences- Ordovician100%
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
3 formations
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The named rock units Tretaspis anderssoni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Tretaspis anderssoni and its relatives
OrdovicianWhere Tretaspis anderssoni and its relatives were recorded in the Ordovician.
Found in the same rock
43 taxa- Remopleurides3 sites
- Primaspis (Primaspis) bucculenta2 sites
- Tretaspis hisingeri2 sites
- Archegocystis granulata1 site
- Atractopyge1 site
- Calyptaulax norvegicus1 site
- Centrocyrtoceras frognoyense1 site
- Chasmops1 site
- Cleionychia1 site
- Cleionychia primitiva1 site
- Cybeloides (Paracybeloides)1 site
- Cybeloides girvanensis1 site
- Cyclendoceras norvegicum1 site
- Cyrtodontula ventricosa1 site
- Danoceras1 site
- Discoceras roemeri1 site
- Ephippiorthoceras frognoyense1 site
- Erratencrinurus (Celtencrinurus) kiaeri1 site
- Flexicalymene trinucleina1 site
- Geisonoceras heintzi1 site
- Hadoceras septocurvatum1 site
- Holotrachelus punctillosus1 site
- Illaenus (Parillaenus) roemeri1 site
- Isorthoceras heroyense1 site
The Paleobiology Database records 5 sites for Tretaspis anderssoni, 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
1 referenceEach of the 5 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 content0
No picture of Tretaspis anderssoni was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Tretaspis anderssoni, or no answer at all. This entry cannot say which.
No 3D scan of Tretaspis anderssoni 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 itTretaspis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stormer 1945