Achanarella trewini

Uncredited · via Wikidata/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
- AchanarellaPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At most 5.6 million years on record.
The one occurrence read is dated to somewhere between 393.47 Mya and 387.95 Mya, which is a dating window rather than a span.
1 occurrence of Achanarella trewini on record, most of them in the Devonian. 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- Devonian100%
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
- Lybster Flagstone Formation · Caithness Flagstone Group1
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The named rock units Achanarella trewini has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Achanarella trewini and its relatives
DevonianWhere Achanarella trewini and its relatives were recorded in the Devonian.
Found in the same rock
17 taxa- Cheiracanthus murchisoni1 site
- Cheirolepis trailli1 site
- Coccosteus cuspidatus1 site
- Cornovichthys blaauweni1 site
- Diplacanthus crassisimus1 site
- Diplacanthus striatus1 site
- Diplacanthus tenuistriatus1 site
- Dipterus valenciennesi1 site
- Glyptolepis1 site
- Holoptychius1 site
- Homosteus milleri1 site
- Mesacanthus peachi1 site
- Osteolepis macrolepidotus1 site
- Palaeospondylus gunni1 site
- Pterichthyodes milleri1 site
- Rhadinacanthus longispinus1 site
- Rhamphodopsis threiplandi1 site
The Paleobiology Database records 1 site for Achanarella trewini, 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 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 Achanarella trewini
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Achanarella trewini 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 itAchanarella through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Newman 2002