Amphilichas lineatus

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
- AmphilichasPBDB
- Diet
- carnivorePBDB, for Lichida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Lichidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 9.7 million years on record.
Every occurrence read is dated to somewhere between 452.8 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Amphilichas lineatus 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
9 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
4 formations
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The named rock units Amphilichas lineatus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Amphilichas lineatus and its relatives
OrdovicianWhere Amphilichas lineatus and its relatives were recorded in the Ordovician.
Found in the same rock
344 taxa- Illaenus linnarssoni6 sites
- Decoroproetus asellus5 sites
- Encrinurus striatus5 sites
- Holotrachelus punctillosus5 sites
- Sphaerexochus calvus5 sites
- Hadromeros clasonii4 sites
- Illaenus (Parillaenus) roemeri4 sites
- Lichas affinis4 sites
- Pharostoma leptaenarum4 sites
- Stenoblepharum warburgae4 sites
- Ambonychinia corrugata3 sites
- Amphilichas dalecarlicus3 sites
- Amphilichas latifrons3 sites
- Amphilichas wahlenbergi3 sites
- Cameroceras turrisoides3 sites
- Christiania dalarnensis3 sites
- Eobronteus laticauda3 sites
- Erratencrinurus (Celtencrinurus) kiaeri3 sites
- Gunnarella magnifica3 sites
- Hibbertia costatus3 sites
- Illaenus dalecarlicus3 sites
- Isocolus sjogreni3 sites
- Isorthoceras suave3 sites
- Isorthoceras wahlenbergi3 sites
The Paleobiology Database records 9 sites for Amphilichas lineatus, 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
2 references- The Trilobites of the Leptæna Limestone in Dalarne6
- The Ashgill Trilobites of the Oslo Region, Norway3
Each of the 9 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 content1

Picture of Amphilichas lineatus
- 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 Amphilichas lineatus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itAmphilichas through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Angelin 1854)