Acer stewarti

Acer stewarti is an extinct maple species in the family Sapindaceae described from a series of fossil leaves and samaras. The species is solely known from the Early Eocene sediments exposed in south central British Columbia, Canada adjacent to northeast Washington state, United States. It is one of only two species belonging to the extinct section Stewarta.

No picture of Acer stewarti was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Acer stewarti, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AcerPBDB
Diet
"photoautotroph"PBDB, for Angiospermae

Time the record covers

At most 23 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 33.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 2 occurrencesEocene — about 2 of 2 occurrencesEoceneOligocene — about 0 of 2 occurrences57–56 Mya — about 0.0 occurrences56–55 Mya — about 0.1 occurrences55–54 Mya — about 0.1 occurrences54–53 Mya — about 0.1 occurrences53–53 Mya — about 0.1 occurrences53–52 Mya — about 0.1 occurrences52–51 Mya — about 0.1 occurrences51–50 Mya — about 0.1 occurrences50–50 Mya — about 0.1 occurrences50–49 Mya — about 0.1 occurrences49–48 Mya — about 0.1 occurrences48–47 Mya — about 0.0 occurrences47–46 Mya — about 0.0 occurrences46–46 Mya — about 0.0 occurrences46–45 Mya — about 0.0 occurrences45–44 Mya — about 0.0 occurrences44–43 Mya — about 0.0 occurrences43–43 Mya — about 0.0 occurrences43–42 Mya — about 0.0 occurrences42–41 Mya — about 0.0 occurrences41–40 Mya — about 0.0 occurrences40–40 Mya — about 0.0 occurrences40–39 Mya — about 0.0 occurrences39–38 Mya — about 0.0 occurrences38–37 Mya — about 0.0 occurrences37–36 Mya — about 0.0 occurrences36–36 Mya — about 0.0 occurrences36–35 Mya — about 0.0 occurrences35–34 Mya — about 0.0 occurrences34–33 Mya — about 0.0 occurrences56.5 Mya33.4 Mya

2 occurrences of Acer stewarti 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

2 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

Allenby — 49.47°N, 120.48°W

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The named rock units Acer stewarti has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Acer stewarti and its relatives

Eocene

Where Acer stewarti and its relatives were recorded in the Eocene.

Found in the same rock

56 taxa

The Paleobiology Database records 2 sites for Acer stewarti, 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 2 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 content0

No picture of Acer stewarti was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Acer stewarti, or no answer at all. This entry cannot say which.

No 3D scan of Acer stewarti 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 itAcer through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Wolfe and Tanai 1987