Gymnospermae
The gymnosperms are a group of woody, perennial seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include conifers, cycads, ginkgos, and gnetophytes, forming the clade Gymnospermae. The name is based on the unenclosed condition of their seeds. The non-encased condition of their seeds contrasts with the seeds and ovules of flowering plants (angiosperms), which are enclosed within an ovary. Gymnosperm seeds develop either on the surface of scales or leaves, which are often modified to form cones, or on their own as in yew, Torreya, and Ginkgo.

Unknown Unknown , Leipzig ; Berlin ; Wien : F.A. Brockhaus · Public Domain · 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
- SpermatophytataPBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 383 million years on record.
The record covers at least 383.4 Mya to 11.7 ka. No occurrence read is dated outside 387.95 Mya to 0 Mya.
12,000+ occurrences of Gymnospermae on record. 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
12,000 occurrences read- Devonianunder 1%
- Carboniferous4%
- Permian13%
- Early Triassic1%
- Middle Triassic2%
- Late Triassic11%
- Early Jurassic8%
- Middle Jurassic12%
- Late Jurassic8%
- Early Cretaceous10%
- Late Cretaceous7%
- Paleocene5%
- Eocene6%
- Oligocene3%
- Miocene6%
- Plioceneunder 1%
- Pleistocene2%
- 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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.
Found in
at least 1255 formations
- Santa Clara Formation · Barranca Group230
- Fort Union Formation194
- Riachuelo Formation144
- Saltwick Formation · Ravenscar Group108
- Pottsville Formation107
- Pautut Formation106
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The named rock units Gymnospermae has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 1,231 further formations hold fewer occurrences each and are not listed. 4,219 occurrences have no formation on record, which is common for older literature.
Found in the same rock
895 taxa- Glyptostrobus europaeus73 sites
- Metasequoia occidentalis59 sites
- Sphenopteris49 sites
- Cercidiphyllum genetrix47 sites
- Alnus41 sites
- Neuropteris39 sites
- Pecopteris37 sites
- Pecopteris (Alethopteris)36 sites
- Cordaites35 sites
- Calamites33 sites
- Sphenophyllum33 sites
- Annularia32 sites
- Averrhoites affinis32 sites
- Lepidodendron31 sites
- Asterophyllites29 sites
- Equisetum29 sites
- Dicotyledoneae27 sites
- Allantoidiopsis erosa25 sites
- Samaropsis24 sites
- Sigillaria24 sites
- Zingiberopsis isonervosa24 sites
- Ampelopsis acerifolia23 sites
- Hamamelidaceae23 sites
- Hicoria antiquora23 sites
The Paleobiology Database records at least 881 sites for Gymnospermae, and this reads 240 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
at least 1,083 references- Kompleksy rasteniy; sporovo-pyl'tsevyye kompleksy284
- A Catalogue of Indian Fossil Plants270
- Paleozoic-Mesozoic Palynology of Israel: I: Palynological Aspects of the Permo-Triassic Succession in the Subsurface of Israel.235
- Die mittelmiozaenen und obermiozaenen Floren aus der Meuroer und Raunoer Folge in der Lausitz. III. Fundstellen und Palaeobiologie195
- Paleoenvironmental reconstruction based on palynological and palynofacies analyses of the Aptian-Albian succession in the Sergipe Basin, northeastern Brazil180
- Early Pleistocene vegetation change in upland south-eastern Australia179
- Nuevo ensayo de un panorama de la paleoecologia de comunidades de la tafoflora Santa Clara (Triasico Tardio, Sonora)177
- Triassic Floras of Eurasia169
- Early Jurassic land flora of the Getic Nappe142
- La paleoflore Jurassique du Jura Francais: Etude systematique, aspects stratigraphiques et paleoecologiques132
- Triassic Floras of Eurasia127
- Distribution of pollen and spores in a subsurface marine Wilcox (Paleocene-Eocene) section in southwest Louisiana122
Each of the 12,000 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. That read hit its cap, so each count is a floor. 1,071 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 Gymnospermae
- Source
- Wikipedia/Commons
- Credit
- Unknown Unknown , Leipzig ; Berlin ; Wien : F.A. Brockhaus
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Gymnospermae was found in MorphoSource and Sketchfab.
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
- Source
- Wikipedia, “Gymnosperm”
- 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 itSpermatophytata through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.