Koelreuteria dilcheri

Koelreuteria dilcheri is an extinct golden rain tree species from the Eocene found in the western coastal region of the United States. Fruit fossils of the species have been recovered in Northern California and northeastern Washington. Early fossils were included within several species described based on leaf fossils but have not been found in organic attachment to foliage. The lack of connection lead to the separation of K. dilcheri into a separate morphospecies in 2013. Wind and water dispersal have been suggested as likely modes of seed spreading.

Koelreuteria dilcheri

Kevmin · CC BY-SA 4.0 · 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
KoelreuteriaPBDB
Diet
"photoautotroph"PBDB, for Angiospermae

Time the record covers

At most 19 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 3 occurrencesEocene — about 3 of 3 occurrencesEocene57–56 Mya — about 0.0 occurrences56–55 Mya — about 0.2 occurrences55–55 Mya — about 0.2 occurrences55–54 Mya — about 0.2 occurrences54–53 Mya — about 0.2 occurrences53–53 Mya — about 0.2 occurrences53–52 Mya — about 0.2 occurrences52–51 Mya — about 0.2 occurrences51–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–49 Mya — about 0.2 occurrences49–49 Mya — about 0.2 occurrences49–48 Mya — about 0.2 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–45 Mya — about 0.1 occurrences45–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–39 Mya — about 0.1 occurrences39–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–37 Mya — about 0.0 occurrences56.5 Mya37.2 Mya

3 occurrences of Koelreuteria dilcheri on record, most of them in the Eocene. 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

3 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

1 formation

Klondike Mountain — 48.66°N, 118.75°W

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The named rock units Koelreuteria dilcheri has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Koelreuteria dilcheri and its relatives

Eocene

Where Koelreuteria dilcheri and its relatives were recorded in the Eocene.

Found in the same rock

71 taxa

The Paleobiology Database records 3 sites for Koelreuteria dilcheri, 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

Each of the 3 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Koelreuteria dilcheri

Credit
Kevmin
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Koelreuteria dilcheri 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 itKoelreuteria through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Wang et al. 2013