Achnanthes

Achnanthes

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
AchnanthaceaePBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At least 5.3 million years on record.

The record covers at least 5.333 Mya to 11.7 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.

Oligocene — about 0 of 44 occurrencesMiocene — about 2 of 44 occurrencesMiocenePliocene — about 2 of 44 occurrencesPliocenePleistocene — about 33 of 44 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences16–15 Mya — about 0.1 occurrences15–14 Mya — about 0.1 occurrences14–13 Mya — about 0.1 occurrences13–13 Mya — about 0.1 occurrences13–12 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.4 Mya — about 0.1 occurrences9.4–8.6 Mya — about 0.1 occurrences8.6–7.8 Mya — about 0.1 occurrences7.8–7.1 Mya — about 0.1 occurrences7.1–6.3 Mya — about 0.1 occurrences6.3–5.5 Mya — about 0.1 occurrences5.5–4.7 Mya — about 0.0 occurrences3.9–3.1 Mya — about 1 occurrence3.1–2.4 Mya — about 3 occurrences2.4–1.6 Mya — about 9 occurrences1.6–785 ka Mya — about 10 occurrences785 ka–0 Mya — about 19 occurrences5.333 Mya11.7 ka23.5 Mya0 Mya

44 occurrences of Achnanthes on record, most of them in the Pleistocene. 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

44 occurrences

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

2 formations

Gadeb — 7.12°N, 39.37°ELatah — 47.56°N, 117.22°W

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The named rock units Achnanthes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 41 occurrences have no formation on record, which is common for older literature.

Achnanthes and its relatives

Pleistocene

Where Achnanthes and its relatives were recorded in the Pleistocene.

Found in the same rock

127 taxa

The Paleobiology Database records 41 sites for Achnanthes, 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

12 references

Each of the 44 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 Achnanthes

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 Achnanthes 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 itAchnanthaceae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.