Cycadaceae

Uncredited · CC BY-SA 3.0 · via Wikidata/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
- CycadalesPBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 290 million years on record.
The record covers at least 290.1 Mya to 11.7 ka. No occurrence read is dated outside 298.9 Mya to 0 Mya.
105 occurrences of Cycadaceae on record, most of them in the Late Triassic. The Paleobiology Database records this as a living group. 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
105 occurrences- Permian6%
- Early Triassic2%
- Middle Triassic4%
- Late Triassic39%
- Early Jurassic5%
- Middle Jurassic8%
- Late Jurassic13%
- Early Cretaceous10%
- Late Cretaceous6%
- Paleocene1%
- Eocene3%
- Oligoceneunder 1%
- Mioceneunder 1%
- Plioceneunder 1%
- Pleistoceneunder 1%
- Holoceneunder 1%
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
47 formations
- Santa Clara Formation · Barranca Group11
- Pautut Formation8
- Tuckahoe Formation3
- Cow Branch Formation · Dan River Group3
- Doswell Formation2
- Saltwick Formation2
Loading coastlines…
The named rock units Cycadaceae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 further formations hold fewer occurrences each and are not listed. 29 occurrences have no formation on record, which is common for older literature.
Cycadaceae and its relatives
Late TriassicWhere Cycadaceae and its relatives were recorded in the Late Triassic.
Found in the same rock
1,045 taxa- Cladophlebis23 sites
- Taeniopteris23 sites
- Sphenozamites22 sites
- Nilsonia21 sites
- Pterophyllum21 sites
- Podozamites18 sites
- Elatocladus17 sites
- Equisetites15 sites
- Neocalamites15 sites
- Otozamites14 sites
- Todites14 sites
- Zamites14 sites
- Brachyphyllum13 sites
- Baiera12 sites
- Sphenopteris11 sites
- Anomozamites10 sites
- Clathropteris10 sites
- Dictyophyllum10 sites
- Pagiophyllum10 sites
- Arberophyllum9 sites
- Carpolithus9 sites
- Coniferales9 sites
- Danaeopsis9 sites
- Ginkgo9 sites
The Paleobiology Database records 75 sites for Cycadaceae, 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
55 references- A Catalogue of Indian Fossil Plants10
- Early to Middle Carnian (Triassic) Flora and Fauna of the Richmond and Taylorsville Basins, Virginia and Maryland, U.S.A.7
- Revision of the Late Cretaceous Pautut Flora from West Greenland: Gymnospermopsida (Cycadales, Cycadeoidales, Caytoniales, Ginkgoales, Coniferales)6
- Nuevo ensayo de un panorama de la paleoecologia de comunidades de la tafoflora Santa Clara (Triasico Tardio, Sonora)6
- Hipotesis de trabajo acerca de la paleoecologia de comunidades de la tafoflora Santa Clara del Triasico Tardio de Sonora5
- Triassic Floras of Eurasia4
- Triassic Floras of Eurasia4
- Regional Geology of Hunan Province3
- A number of additional and revised taxa from the Ladinian flora of the Dolomites, Northern Italy2
- New taxa of fossil Carnian plants from Mount Pora (Bergamasc Alps, Northern Italy).2
- Late Paleocene-early Eocene climate changes in southwestern Wyoming: Paleobotanical analysis2
- Middle Bathonian floras and phytocoenoses of France.2
Each of the 105 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. 43 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 Cycadaceae
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Cycadaceae 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCycadales through timeFormations of the Late TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Persoon 1807