Gymnostoma

Gymnostoma is a genus of about eighteen species of trees and shrubs, constituting one of the four genera of the plant family Casuarinaceae. The species grow naturally in the tropics, including at high elevations having temperate climates, in forests in the region of the western Pacific Ocean and Malesia. In New Caledonia, published botanical science describes eight species found growing naturally, which botanists have not found anywhere else (endemics). Other species are native to Borneo, Sumatra, Maluku, and New Guinea, and one endemic species each in Fiji and the Wet Tropics of Queensland, Australia.

Gymnostoma

Denis.prévôt · 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
CasuarinaceaePBDB
Diet
"photoautotroph"PBDB, for Angiospermae

Time the record covers

At least 40 million years on record.

The record covers at least 56 Mya to 15.98 Mya. No occurrence read is dated outside 59.24 Mya to 11.63 Mya.

Paleocene — about 1 of 28 occurrencesPaleoceneEocene — about 19 of 28 occurrencesEoceneOligocene — about 6 of 28 occurrencesOligoceneMiocene — about 3 of 28 occurrencesMiocene60–59 Mya — about 0.2 occurrences59–57 Mya — about 0.5 occurrences57–55 Mya — about 2 occurrences55–54 Mya — about 3 occurrences54–52 Mya — about 3 occurrences52–50 Mya — about 3 occurrences50–49 Mya — about 3 occurrences49–47 Mya — about 1 occurrence47–45 Mya — about 0.8 occurrences45–44 Mya — about 0.8 occurrences44–42 Mya — about 0.8 occurrences42–40 Mya — about 0.8 occurrences40–39 Mya — about 0.8 occurrences39–37 Mya — about 0.6 occurrences37–35 Mya — about 0.3 occurrences35–34 Mya — about 0.3 occurrences34–32 Mya — about 0.8 occurrences32–30 Mya — about 0.8 occurrences30–29 Mya — about 0.8 occurrences29–27 Mya — about 0.8 occurrences27–26 Mya — about 0.9 occurrences26–24 Mya — about 0.9 occurrences24–22 Mya — about 0.7 occurrences22–21 Mya — about 0.4 occurrences21–19 Mya — about 0.4 occurrences19–17 Mya — about 0.4 occurrences17–16 Mya — about 0.4 occurrences16–14 Mya — about 0.4 occurrences14–12 Mya — about 0.4 occurrences12–11 Mya — about 0.2 occurrences56 Mya15.98 Mya60.2 Mya10.7 Mya

28 occurrences of Gymnostoma on record, most of them in the Eocene. 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

28 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

7 formations

Huitrera — 42.50°S, 70.00°WEyre — 29.32°S, 137.30°EEastern View — 38.42°S, 144.18°EMacquarie Harbor — 42.17°S, 145.36°EMorwell — 38.23°S, 146.62°EYallourn — 38.22°S, 146.56°EPidinga — 31.24°S, 121.63°E

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The named rock units Gymnostoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Gymnostoma and its relatives

Eocene

Where Gymnostoma and its relatives were recorded in the Eocene.

Found in the same rock

518 taxa

The Paleobiology Database records 24 sites for Gymnostoma, 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

15 references

Each of the 28 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. 3 further references are not listed. 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 Gymnostoma

Credit
Denis.prévôt
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itCasuarinaceae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Johnson 1980