Acaena

Acaena is a genus of about 60 species of mainly evergreen, creeping herbaceous perennial plants and subshrubs in the family Rosaceae, native mainly to the Southern Hemisphere, notably New Zealand, Australia and South America, but with a few species extending into the Northern Hemisphere, north to Hawaii and California.

Acaena

Kurt Stüber [1] · 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
RosaceaePBDB
Diet
"photoautotroph"PBDB, for Angiospermae

Time the record covers

At least 35 million years on record.

The record covers at least 37.71 Mya to 2.58 Mya. No occurrence read is dated outside 48.07 Mya to 774 ka.

Eocene — about 1 of 8 occurrencesEoceneOligocene — about 2 of 8 occurrencesOligoceneMiocene — about 1 of 8 occurrencesMiocenePliocene — about 0 of 8 occurrencesPleistocene — about 4 of 8 occurrences49–47 Mya — about 0.1 occurrences47–46 Mya — about 0.2 occurrences46–44 Mya — about 0.2 occurrences44–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences41–39 Mya — about 0.2 occurrences39–38 Mya — about 0.1 occurrences34–33 Mya — about 0.1 occurrences33–31 Mya — about 0.1 occurrences31–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–26 Mya — about 0.5 occurrences26–25 Mya — about 0.6 occurrences25–23 Mya — about 0.6 occurrences23–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–18 Mya — about 0.1 occurrences18–16 Mya — about 0.1 occurrences16–15 Mya — about 0.1 occurrences15–13 Mya — about 0.1 occurrences13–11 Mya — about 0.1 occurrences3.3–1.6 Mya — about 2 occurrences1.6–0 Mya — about 2 occurrences37.71 Mya2.58 Mya49 Mya0 Mya

8 occurrences of Acaena on record. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

8 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

Cullen — 52.87°S, 68.41°WRio Guillermo — 51.25°S, 72.28°W

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The named rock units Acaena has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Found in the same rock

193 taxa

The Paleobiology Database records 7 sites for Acaena, 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

5 references

Each of the 8 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 Acaena

Credit
Kurt Stüber [1]
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Acaena 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.

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 itRosaceae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mutis and Linneaus 1771