Zamia

Zamia is a genus of cycad of the family Zamiaceae, native to North America from the United States throughout the West Indies, Central America, and South America as far south as Bolivia. The genus is considered to be the most ecologically and morphologically diverse of the cycads, and is estimated to have originated about 68.3 million years ago.

Zamia

Forest & Kim Starr · CC BY 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
ZamiaceaePBDB
Diet
"photoautotroph"PBDB, for Streptophyta

Time the record covers

At least 32 million years on record.

The record covers at least 56 Mya to 23.04 Mya. No occurrence read is dated outside 66 Mya to 5.333 Mya.

Late Cretaceous — about 0 of 10 occurrencesPaleocene — about 6 of 10 occurrencesPaleoceneEocene — about 0 of 10 occurrencesEoceneOligocene — about 1 of 10 occurrencesOligoceneMiocene — about 3 of 10 occurrencesMiocenePliocene — about 0 of 10 occurrences67–65 Mya — about 0.4 occurrences65–63 Mya — about 1 occurrence63–61 Mya — about 1 occurrence61–59 Mya — about 1 occurrence59–57 Mya — about 2 occurrences57–55 Mya — about 0.8 occurrences55–52 Mya — about 0.0 occurrences52–50 Mya — about 0.0 occurrences50–48 Mya — about 0.0 occurrences48–46 Mya — about 0.0 occurrences46–44 Mya — about 0.0 occurrences44–42 Mya — about 0.0 occurrences42–40 Mya — about 0.0 occurrences40–38 Mya — about 0.0 occurrences38–36 Mya — about 0.0 occurrences36–34 Mya — about 0.1 occurrences34–31 Mya — about 0.1 occurrences31–29 Mya — about 0.1 occurrences29–27 Mya — about 0.1 occurrences27–25 Mya — about 0.1 occurrences25–23 Mya — about 0.1 occurrences23–21 Mya — about 0.4 occurrences21–19 Mya — about 0.4 occurrences19–17 Mya — about 0.4 occurrences17–15 Mya — about 0.4 occurrences15–13 Mya — about 0.4 occurrences13–10 Mya — about 0.4 occurrences10–8.3 Mya — about 0.4 occurrences8.3–6.2 Mya — about 0.4 occurrences6.2–4.1 Mya — about 0.1 occurrences56 Mya23.04 Mya67 Mya4 Mya

10 occurrences of Zamia 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

10 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

3 formations

Fort Union — 44.00°N, 109.00°WFort Union — 44.00°N, 106.62°WFort Union — 44.80°N, 106.95°WMiddle Park — 40.07°N, 106.10°WFort Union? — 43.02°N, 106.09°W

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The named rock units Zamia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Found in the same rock

168 taxa

The Paleobiology Database records 10 sites for Zamia, 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

6 references

Each of the 10 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 content2

Picture of Zamia

Credit
Forest & Kim Starr
Licence
CC BY 3.0
Commercial use
the licence allows it

Structured light scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Zamia floridana · DUKE:DUKE10007911

Smithsonian Open Access was 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 itZamiaceae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1763