Chroococcaceae
Chroococcaceae is a family of cyanobacteria.

Xvazquez · CC BY 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
- ChroococcalesPBDB
- Diet
- "photoautotroph"PBDB, for Cyanobacteria
- Motility
- stationaryPBDB, for Cyanobacteria
- Environment
- hypersaline,marine,brackish,freshwaterPBDB, for Cyanobacteria
Time the record covers
At least 1740 million years on record.
The record covers at least 1800 Mya to 59.24 Mya. No occurrence read is dated outside 2050 Mya to 56 Mya.
191 occurrences of Chroococcaceae on record, most of them in the Cambrian. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
191 occurrencesThese 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
36 formations
- Bitter Springs Formation19
- McLeary Formation · Belcher Group16
- Barney Creek Formation15
- Kasegalik Formation · Belcher Group12
- Victor Bay Formation · Uluksan Group11
- Balbirini Dolomite Formation · Nathan Group10
Loading coastlines…
The named rock units Chroococcaceae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 38 occurrences have no formation on record, which is common for older literature.
Chroococcaceae and its relatives
CambrianWhere Chroococcaceae and its relatives were recorded in the Cambrian.
Found in the same rock
381 taxa- Sphaerophycus parvum30 sites
- Siphonophycus robustum29 sites
- Gloeodiniopsis lamellosa19 sites
- Eoentophysalis belcherensis18 sites
- Myxococcoides13 sites
- Myxococcoides minor11 sites
- Palaeoanacystis vulgaris11 sites
- Siphonophycus inornatum11 sites
- Nanococcus vulgaris10 sites
- Siphonophycus10 sites
- Siphonophycus kestron10 sites
- Siphonophycus septatum10 sites
- Myxococcoides cantabrigiensis9 sites
- Sphaerophycus medium9 sites
- Glenobotrydion aenigmatis7 sites
- Gloeodiniopsis7 sites
- Tetraphycus major7 sites
- Eosynechococcus medius6 sites
- Leiosphaeridia6 sites
- Palaeolyngbya barghoorniana6 sites
- Eosynechococcus amadeus5 sites
- Eosynechococcus moorei5 sites
- Melasmatosphaera media5 sites
- Oscillatoriopsis majesticum5 sites
The Paleobiology Database records 96 sites for Chroococcaceae, 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
36 references- Precambrian microflora, Belcher Islands, Canada: significance and systematics28
- Organic-walled microfossils from earliest Cambrian or latest Proterozoic Tindir Group rocks, northwest Canada19
- Shelf-facies microfossils from the Uluksan Group (Proterozoic Bylot Supergroup), Baffin Island, Canada17
- Microflora of the H.Y.C. Pyritic Shale Member of the Barney Creek Formation (McArthur Group), middle Proterozoic of northern Australia15
- Microfossils from silicified stromatolitic carbonates of the Upper Proterozoic Limestone-Dolomite 'Series', central East Greenland13
- New microorganisms from the Bitter Springs Formation (late Precambrian) of the north-central Amadeus Basin, Australia11
- Microflora of the middle Proterozoic Balbirini Dolomite (McArthur Group) of Australia10
- Paleobiology of the Mesoproterozoic Billyakh Group, Anabar Uplift, northern Siberia8
- Microfossils in cherts from the Middle Riphean (Mesoproterozoic) Avzyan Formation, southern Ural Mountains, Russian Federation6
- Proterozoic stromatolite microfloras of the Gaoyuzhuang Formation (Early Sinian: Riphean), Hebei, China6
- Microflora of the Bitter Springs Formation, Late Precambrian, central Australia6
- Paleobiology of distinctive benthic microfossils from the Upper Proterozoic Limestone-Dolomite "Series," central East Greenland5
Each of the 191 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. 24 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 Chroococcaceae
- Source
- Wikipedia/Commons
- Credit
- Xvazquez
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Chroococcaceae 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 itChroococcales through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.