Rivularia
Rivularia is a genus of cyanobacteria of the family Rivulariaceae.

Harvey, William H. (William Henry), 1811-1866 · Public Domain · 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
- RivulariaceaePBDB
- Diet
- "photoautotroph"PBDB, for Cyanobacteria
- Motility
- stationaryPBDB, for Cyanobacteria
- Environment
- hypersaline,marine,brackish,freshwaterPBDB, for Cyanobacteria
Time the record covers
At least 323 million years on record.
The record covers at least 445.2 Mya to 121.4 Mya. No occurrence read is dated outside 448.8 Mya to 113.2 Mya.
21 occurrences of Rivularia on record, most of them in the Early 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
21 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
6 formations
- Jabal Wasa Formation4
- Varciorog Formation3
- Lärchberg Formation2
- Lapos Formation2
- Yunghsien Formation1
- Daduhe Formation1
Loading coastlines…
The named rock units Rivularia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Rivularia and its relatives
Early CretaceousWhere Rivularia and its relatives were recorded in the Early Cretaceous.
Found in the same rock
78 taxa- Ladinella porata3 sites
- Tubiphytes gracilis3 sites
- Aeolisaccus2 sites
- Garwoodia2 sites
- Girvanella2 sites
- Ortonella2 sites
- Salpingoporella2 sites
- Shamovella obscura2 sites
- Solenopora2 sites
- Thaumatoporella parvovesiculifera2 sites
- Tubiphytes2 sites
- Aciculella1 site
- Allonema1 site
- Alpinothalamia bavarica1 site
- Alpinotubus1 site
- Amijiella1 site
- Ammobaculites1 site
- Anchispirocyclina1 site
- Auloconus1 site
- Aulotortus1 site
- Baccanella1 site
- Barbafera carnica1 site
- Cassianostroma kuepperi1 site
- Ceotinella mirunae1 site
The Paleobiology Database records 5 sites for Rivularia, 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- Algues calcaires de la zone de Resita-Moldova Noua (Carpathes méridionales, Roumanie)5
- Carnian (Upper Triassic) reef biota from limestone blocks of different tectonic settings in the Oman Mountains4
- Sedimentary succession of the Lower Cretaceous deposits from the north-western part of Pădurea Craiului (Apuseni Mountains, Romania)3
- Early Cretaceous Foraminifera, Algal Nodules and Calpionellids from the Lapos Valley, Bicaz Gorges (Eastern Carpathians, Romania)2
- New Late Triassic calcareous algae from Hydra, Greece2
- Mikrofazies, Paläontologie und Stratigraphie der Lerchkogelkalke (Tithon-Berrias) des Dietrichshorns (Salzburger Land, Nördliche Kalkalpen) [Microfacies, paleontology and stratigraphy of the Lerchkogel Limestone (Tithonian-Berriasian) of the Dietrichshorn (Salzburg, Northern Calcareous Alps)]2
- Biotic composition and microfacies distribution of Upper Triassic build‑ups: new insights from the Lower Carnian limestone of Lesno Brdo, central Slovenia1
- Ordovician reef systems and settings in South China before the Late Ordovician mass extinction1
- Famennian (Upper Devonian) calcimicrobial (Renalcis) reef at Miaomen, Guilin, Guangxi, South China1
Each of the 21 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 Rivularia
- Source
- Wikipedia/Commons
- Credit
- Harvey, William H. (William Henry), 1811-1866
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Rivularia 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 itRivulariaceae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Agardh 1886