Botryococcus
Botryococcus is a genus of green algae. It is a microscopic or semi-microscopic alga that is found in freshwater habitats worldwide. It consists of colonies of cells in an irregular, gelatinous matrix.

ja:User:NEON / User:NEON_ja · 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
- BotryococcaceaePBDB
- Diet
- "photoautotroph"PBDB, for Algae
Time the record covers
At least 305 million years on record.
The record covers at least 306 Mya to 11.7 ka. No occurrence read is dated outside 312.8 Mya to 0 Mya.
279 occurrences of Botryococcus on record, most of them in the Late Cretaceous. 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
279 occurrences- Carboniferous3%
- Permian3%
- Middle Jurassic4%
- Late Jurassicunder 1%
- Early Cretaceous11%
- Late Cretaceous39%
- Paleocene9%
- Eocene10%
- Oligocene2%
- Miocene6%
- Plioceneunder 1%
- Pleistocene12%
- Holocene1%
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
54 formations
- Allen Formation · Malargüe Group19
- Bima Formation · Bornu Basin Group18
- Bentiu Formation17
- La Colonia Formation13
- Monte Chico Formation13
- Aradeiba Formation · Darfur Group11
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The named rock units Botryococcus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 30 further formations hold fewer occurrences each and are not listed. 69 occurrences have no formation on record, which is common for older literature.
Botryococcus and its relatives
Late CretaceousWhere Botryococcus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,716 taxa- Classopollis54 sites
- Inaperturopollenites51 sites
- Tricolporopollenites44 sites
- Cyathidites minor42 sites
- Araucariacites australis41 sites
- Laevigatosporites41 sites
- Podocarpidites41 sites
- Verrucosisporites41 sites
- Cyathidites australis40 sites
- Gleicheniidites senonicus39 sites
- Laevigatosporites ovatus38 sites
- Poaceae38 sites
- Cyperaceae37 sites
- Dinoflagellata37 sites
- Phyllocladidites mawsonii36 sites
- Tricolpites36 sites
- Baculatisporites comaumensis34 sites
- Asteraceae32 sites
- Peninsulapollis gillii32 sites
- Tricolpites reticulatus30 sites
- Apiaceae29 sites
- Cyatheacidites annulatus29 sites
- Plantago29 sites
- Chenopodiaceae28 sites
The Paleobiology Database records 251 sites for Botryococcus, 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
63 references- Late Cretaceous spore-pollen zonation of the Central African Rift System (CARS), Kaikang Trough, Muglad Basin, South Sudan: angiosperm spread and links to the Elaterates Province43
- Palinología del entorno cretácico/paleógeno del SO de la provincia de Santa Cruz: significado estratigráfico y paleoambiental23
- Early Pleistocene vegetation change in upland south-eastern Australia22
- Vegetation dynamics in a disturbed lacustrine record: The Eocene maar lake of Groß-Zimmern (Hesse, Germany)21
- Palynological Investigation of the Albian to Lower Cenomanian Bima Formation, Bornu Basin, Nigeria21
- Palynostratigraphy from the Allen and Jagüel formations at the Cerro Gutiérrez locality, Lago Pellegrini area, South Argentina18
- A Catalogue of Fossil Plants from India Part 6: Cenozoic (Quaternary) Palynology and Palaeobotany10
- Palynology of the Lost Branch Formation of Kansas--new insights on the major floral transition at the Middle-Upper Pennsylvanian boundary7
- Maastrichtian palaeoenvironments and palaeoclimate reconstruction in southern South America (Patagonia, Argentina) based on fossil fungi and algae using open data resources6
- Paleoenvironmental reconstruction based on palynological and palynofacies analyses of the Aptian-Albian succession in the Sergipe Basin, northeastern Brazil6
- New South American record of the Cretaceous–Paleogene boundary interval (La Colonia Formation, Patagonia, Argentina)5
- Brackish to freshwater dinoflagellate cyst assemblages from the La Colonia Formation (Paleocene?), northeastern Patagonia, Argentina5
Each of the 279 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. 51 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 Botryococcus
- Source
- Wikipedia/Commons
- Credit
- ja:User:NEON / User:NEON_ja
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Botryococcus 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
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
Everything alive alongside itBotryococcaceae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kutzing 1849