Aethotaxis
The longfin icedevil, also known as the threadfin pinhead, is a species of marine ray-finned fish belonging to the family Nototheniidae, the notothens or cod icefishes. It is native to the Southern Ocean where it can be found at depths down to 850 metres (2,790 ft). This species grows to a length of 42 centimetres (17 in) TL. This species is the only known member of its genus and is of no interest to commercial fisheries.

GeSHaFish · CC BY-SA 3.0 · via Wikipedia/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
- AnchignathodontidaePBDB
- Diet
- carnivorePBDB, for Conodonta
- Life habit
- nektonicPBDB, for Conodonta
- Motility
- actively mobilePBDB, for Conodonta
- Vision
- well-developedPBDB, for Conodonta
Time the record covers
At most 4.8 million years on record.
The one occurrence read is dated to somewhere between 303.7 Mya and 298.9 Mya, which is a dating window rather than a span.
1 occurrence of Aethotaxis on record, most of them in the Carboniferous. 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- Carboniferous100%
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
- Oread Limestone Formation · Shawnee Group1
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The named rock units Aethotaxis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Aethotaxis and its relatives
CarboniferousWhere Aethotaxis and its relatives were recorded in the Carboniferous.
Found in the same rock
18 taxa- Apterrinella1 site
- Archaeolithophyllum1 site
- Bradyina magna1 site
- Climacammina1 site
- Endothyra1 site
- Epimastopora1 site
- Globivalvulina bulloides1 site
- Idiognathodus1 site
- Kansanella1 site
- Millerella1 site
- Minammodytes polyvertus1 site
- Polychaeta1 site
- Porifera1 site
- Pseudobradyina1 site
- Syzrania1 site
- Tetrataxis1 site
- Textularia1 site
- Triticites1 site
The Paleobiology Database records 1 site for Aethotaxis, 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 content2
Picture of Aethotaxis
- Source
- Wikipedia/Commons
- Credit
- GeSHaFish
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Aethotaxis mitopteryx · YPM:VZ:YPM ICH 022389.001
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAnchignathodontidae through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.