Androstrobus

via iDigBio · CC0 · via iDigBio. 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
- BeaniaceaePBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At least 115 million years on record.
The record covers at least 237 Mya to 121.4 Mya. No occurrence read is dated outside 241.464 Mya to 113.2 Mya.
26 occurrences of Androstrobus 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
26 occurrences- Middle Triassic4%
- Late Triassic12%
- Early Jurassic2%
- Middle Jurassic70%
- Late Jurassic1%
- Early Cretaceous12%
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
5 formations
- Saltwick Formation · Ravenscar Group15
- Anfiteatro de Ticó Formation · Baqueró Group3
- Molteno Formation · Stormberg Group2
- Kamenka Suite Formation1
- Cloughton Formation · Ravenscar Group1
Loading coastlines…
The named rock units Androstrobus 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.
Androstrobus and its relatives
Middle JurassicWhere Androstrobus and its relatives were recorded in the Middle Jurassic.
Found in the same rock
160 taxa- Nilsonia13 sites
- Pseudoctenis13 sites
- Brachyphyllum12 sites
- Elatides12 sites
- Cycadolepis11 sites
- Ctenis10 sites
- Equisetum columnare10 sites
- Pachypteris10 sites
- Ptilophyllum10 sites
- Sagenopteris colpodes10 sites
- Cladophlebis9 sites
- Clathropteris8 sites
- Elatocladus7 sites
- Sphenobaiera7 sites
- Brachyphyllum mamillare6 sites
- Beania5 sites
- Bennettitocarpus spp.5 sites
- Dictyophyllum rugosum5 sites
- Bucklandia4 sites
- Otozamites4 sites
- Phlebopteris4 sites
- Taeniopteris4 sites
- Williamsonia4 sites
- Caytonia3 sites
The Paleobiology Database records 17 sites for Androstrobus, 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
9 references- Principal Components and Correspondence Analyses of Quantitative Data from a Jurassic Plant Bed13
- Cycadean diversity in the Cretaceous of Patagonia, Argentina. Three new Androstrobus species from the Baqueró Group3
- Table 35 Molteno vegetative genera, phytosociological table2
- The Jurassic Flora of Yorkshire2
- Triassic Floras of Eurasia2
- Palaeobotany and petrology of a Middle Jurassic ironstone bed at Wrack Hills, North Yorkshire1
- La paleoflore Jurassique du Jura Francais: Etude systematique, aspects stratigraphiques et paleoecologiques1
- Androstrobus Major, A new Male Cone from the Jurassic of Yorkshire (England)1
- Stanislavskii, 19571
Each of the 26 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 content1

Picture of Androstrobus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Androstrobus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itBeaniaceae through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Schimper 1870