Triarthrus glaber
via iDigBio · 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
- TriarthrusPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Olenidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 600 thousand years on record.
The record covers at least 450.2 Mya to 449.6 Mya. No occurrence read is dated outside 453.8 Mya to 445.5 Mya.
3 occurrences of Triarthrus glaber 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
3 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 Triarthrus glaber has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Triarthrus glaber and its relatives
OrdovicianWhere Triarthrus glaber and its relatives were recorded in the Ordovician.
Found in the same rock
41 taxa- Triarthrus eatoni2 sites
- Aechmina1 site
- Ambonychia1 site
- Amplexopraptus sp.1 site
- Amsassia1 site
- Beloitoceras1 site
- Belonechitina1 site
- Bythocypris cylindrica1 site
- Climacograptus1 site
- Cryptolithus tessellatus1 site
- Ctenodonta1 site
- Dicellograptus1 site
- Didymograptus1 site
- Diplograptus1 site
- Fisherites1 site
- Flexicalymene croneisi1 site
- Geisonoceras1 site
- Hercochitina1 site
- Isotelus iowensis1 site
- Jonesella1 site
- Lambeoceras baffinense1 site
- Lingula1 site
- Lingula divulgata1 site
- Lonchodomas1 site
The Paleobiology Database records 3 sites for Triarthrus glaber, 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- Ordovician megafauna, southern Baffin Island, Nunavat1
- The last olenacean trilobite: Triarthrus in the Whitby Formation (Upper Ordovician) in southern Ontario1
- Stratigraphy of the Ordovician of the Lac Saint-Jean and Chicoutimi outliers, Quebec1
Each of the 3 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 content1
Picture of Triarthrus glaber
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Triarthrus glaber 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 itTriarthrus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Billings 1859