Leucas
Leucas is a genus of plants in the family Lamiaceae, first described by Robert Brown in 1810. It contains over 200 species, widespread over much of Africa, and southern and eastern Asia with a few species in Queensland and on various islands in the Indian Ocean.
Vinayaraj · 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
- LamiaceaePBDB
- Diet
- "photoautotroph"PBDB, for Angiospermae
Time the record covers
At least 762 thousand years on record.
The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.
3 occurrences of Leucas on record, most of them in the Pleistocene. 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
3 occurrences- Pliocene20%
- Pleistocene47%
- Holocene33%
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
1 formation
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The named rock units Leucas has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Leucas and its relatives
PleistoceneWhere Leucas and its relatives were recorded in the Pleistocene.
Found in the same rock
90 taxa- Acacia3 sites
- Artemisia3 sites
- Cyperaceae3 sites
- Achyranthes2 sites
- Apiaceae2 sites
- Commelina benghalensis2 sites
- Dodonaea2 sites
- Euphorbia2 sites
- Justicia2 sites
- Poaceae2 sites
- Podocarpus2 sites
- Syzygium2 sites
- Typha2 sites
- Volkensinia prostrata2 sites
- <Amaranthaceae/Chenopodiaceae>1 site
- <Loganiaceae/Salvadoraceae>1 site
- Acalypha1 site
- Acanthaceae1 site
- Aerva1 site
- Asteraceae1 site
- Berberis1 site
- Boscia sp.1 site
- Brassicaceae1 site
- Caesalpiniaceae1 site
The Paleobiology Database records 3 sites for Leucas, 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 Palaeobotany1
- Geology of the Olduvai Gorge1
- Fossil snakes from Olduvai,Tanzania1
Each of the 3 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 content2
Picture of Leucas
- Source
- Wikipedia/Commons
- Credit
- Vinayaraj
- 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
- Source
- Wikipedia, “Leucas”
- 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 itLamiaceae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Brown 1810