Juglans regia
Juglans regia, known by various common names including the common walnut, English walnut, or Persian walnut amongst other names, is a species of walnut. It is native to Eurasia in at least southwest and central Asia and southeast Europe, but its exact natural area is obscure due to its long history of cultivation.
Thesupermat · CC BY-SA 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
- JuglansPBDB
- Diet
- "photoautotroph"PBDB, for Angiospermae
Time the record covers
At least 20 million years on record.
The record covers at least 23.04 Mya to 2.58 Mya. No occurrence read is dated outside 33.9 Mya to 0 Mya.
4 occurrences of Juglans regia 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
4 occurrences- Oligocene25%
- Miocene25%
- Pleistocene50%
- 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
2 formations
- Renova Formation · Ruby River Basin Group1
- Bangmai Formation1
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The named rock units Juglans regia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Found in the same rock
246 taxa- Alnus4 sites
- Rhus4 sites
- Carpinus3 sites
- Celtis3 sites
- Poaceae3 sites
- Quercus3 sites
- Salix3 sites
- Ulmus3 sites
- Viburnum3 sites
- Abies2 sites
- Acer2 sites
- Apiaceae2 sites
- Artemisia2 sites
- Asteraceae2 sites
- Betula2 sites
- Betula alnoides2 sites
- Betula utilis2 sites
- Boraginaceae2 sites
- Botryococcus2 sites
- Brassicaceae2 sites
- Buxus2 sites
- Cannabis sativa2 sites
- Carya2 sites
- Caryophyllaceae2 sites
The Paleobiology Database records 4 sites for Juglans regia, 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
3 references- A Catalogue of Fossil Plants from India Part 6: Cenozoic (Quaternary) Palynology and Palaeobotany2
- A catalogue of Cenozoic megafossil plants in China1
- The York Ranch Flora of the Upper Ruby River Basin, Southwestern Montana1
Each of the 4 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content2
Picture of Juglans regia
- Source
- Wikipedia/Commons
- Credit
- Thesupermat
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
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 itJuglans through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1753