Sagenopteris
Sagenopteris is a form genus of leaves belonging to the extinct seed plant order Caytoniales, spanning from the Middle Triassic to Late Cretaceous.

Yuanyuan Xu, Maria Barbacka, Paweł Kapusta, Agata Jarzynka, Yongdong Wang, Stephen McLoughlin · CC BY 4.0 · 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
- CaytoniaceaePBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 185 million years on record.
The record covers at least 298.9 Mya to 113.2 Mya. No occurrence read is dated outside 358.86 Mya to 66 Mya.
293 occurrences of Sagenopteris on record, most of them in the Middle Jurassic. 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
293 occurrences- Carboniferousunder 1%
- Permian2%
- Early Triassicunder 1%
- Middle Triassic1%
- Late Triassic13%
- Early Jurassic20%
- Middle Jurassic34%
- Late Jurassic11%
- Early Cretaceous18%
- Late Cretaceousunder 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
95 formations
- Kootenai Formation30
- Saltwick Formation · Ravenscar Group25
- Cape Stewart Formation5
- Cloughton Formation · Ravenscar Group4
- Steierdorf Formation4
- Kokala Suite Formation4
Loading coastlines…
The named rock units Sagenopteris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 71 further formations hold fewer occurrences each and are not listed. 100 occurrences have no formation on record, which is common for older literature.
Sagenopteris and its relatives
Middle JurassicWhere Sagenopteris and its relatives were recorded in the Middle Jurassic.
Found in the same rock
1,065 taxa- Cladophlebis146 sites
- Nilsonia131 sites
- Equisetites84 sites
- Ptilophyllum82 sites
- Coniopteris80 sites
- Pterophyllum78 sites
- Podozamites76 sites
- Brachyphyllum67 sites
- Otozamites67 sites
- Taeniopteris67 sites
- Elatocladus57 sites
- Sphenobaiera56 sites
- Todites56 sites
- Sphenopteris52 sites
- Czekanowskia51 sites
- Pachypteris50 sites
- Phlebopteris50 sites
- Elatides49 sites
- Pagiophyllum49 sites
- Clathropteris48 sites
- Neocalamites48 sites
- Pityophyllum48 sites
- Ctenis46 sites
- Pseudoctenis46 sites
The Paleobiology Database records 226 sites for Sagenopteris, 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
116 references- Flora of the Early Cretaceous Kootenai Formation in Montana, Bryophytes and Tracheophytes Excluding Conifers31
- Principal Components and Correspondence Analyses of Quantitative Data from a Jurassic Plant Bed22
- Early Jurassic land flora of the Getic Nappe14
- About subdivisions of the Lower Jurassic of Tadzhikistan based on paleobotanic data8
- New data on the Upper Jurassic flora of Georgia7
- Triassic Floras of Eurasia6
- The Stratigraphic Tables of Fujian6
- The Yorkshire Jurassic Flora V. Coniferales6
- A Catalogue of Indian Fossil Plants6
- The Stratigraphic Tables of Sichuan5
- Prosviryakova, 19665
- Lower Cretaceous Floras of Western Canada5
Each of the 293 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. 104 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 Sagenopteris
- Source
- Wikipedia/Commons
- Credit
- Yuanyuan Xu, Maria Barbacka, Paweł Kapusta, Agata Jarzynka, Yongdong Wang, Stephen McLoughlin
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Sagenopteris 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 itCaytoniaceae through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Presl 1838