Archaeorthis
Searched as Archaeorthis pribyli. The Paleobiology Database treats Archaeorthis as the accepted name.

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
- ArchaeorthidaePBDB
- Diet
- suspension feederPBDB, for Orthida
- Life habit
- epifaunalPBDB, for Orthida
- Motility
- stationary, attachedPBDB, for Orthida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 7.7 million years on record.
The one occurrence read is dated to somewhere between 477.1 Mya and 469.4 Mya, which is a dating window rather than a span.
1 occurrence of Archaeorthis 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
1 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
1 formation
Loading coastlines…
The named rock units Archaeorthis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Archaeorthis and its relatives
OrdovicianWhere Archaeorthis and its relatives were recorded in the Ordovician.
Found in the same rock
417 taxa- Ptyocephalus11 sites
- Hesperonomia8 sites
- Illaenus6 sites
- Leptella nevadensis6 sites
- Presbynileus6 sites
- Batostoma5 sites
- Batostoma implicatum5 sites
- Eorobergia5 sites
- Eridotrypa5 sites
- Fascifera subcarinata5 sites
- Hebertella5 sites
- Helicotoma5 sites
- Homotrypa5 sites
- Homotrypa subramosa5 sites
- Hormotoma gracilis5 sites
- Hypsiptycha argenturbicum5 sites
- Idiostrophia5 sites
- Leperditia5 sites
- Lophospira5 sites
- Mimella borealis5 sites
- Orthoceras5 sites
- Pachydictya5 sites
- Petigurus groenlandicus5 sites
- Prismostylus fibratum5 sites
The Paleobiology Database records 64 sites for Archaeorthis, 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 1 occurrence 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 content1

Picture of Archaeorthis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Archaeorthis 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 itArchaeorthidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Schuchert and Cooper 1931