Amphiroa
Amphiroa is a genus of thalloid red algae under the family Corallinaceae.
Show ryu · 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
- AmphiroideaePBDB
- Diet
- "photoautotroph"PBDB, for Corallinaceae
- Life habit
- epifaunal, clonalPBDB, for Corallinaceae
- Motility
- stationary, attached, epibiontPBDB, for Corallinaceae
- Environment
- marinePBDB, for Corallinaceae
Time the record covers
At least 100 million years on record.
The record covers at least 100.5 Mya to 11.7 ka. No occurrence read is dated outside 113.2 Mya to 0 Mya.
190 occurrences of Amphiroa on record, most of them in the Paleocene. 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
190 occurrences- Early Cretaceous2%
- Late Cretaceous2%
- Paleocene27%
- Eocene9%
- Oligocene4%
- Miocene24%
- Pliocene15%
- Pleistocene16%
- Holocene3%
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
19 formations
- Sinjar Formation46
- Guitar Formation Formation12
- Huy Bay Formation6
- Chaya Formation4
- Kallakudi Limestone Formation3
- Vrachionas Formation2
Loading coastlines…
The named rock units Amphiroa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 100 occurrences have no formation on record, which is common for older literature.
Amphiroa and its relatives
PaleoceneWhere Amphiroa and its relatives were recorded in the Paleocene.
Found in the same rock
204 taxa- Lithothamnion33 sites
- Corallina30 sites
- Lithophyllum28 sites
- Spongites25 sites
- Mollusca22 sites
- Echinodermata21 sites
- Mesophyllum20 sites
- Anthozoa19 sites
- Jania19 sites
- Miliolida19 sites
- Textulariida19 sites
- Pyrgo18 sites
- Textularia18 sites
- Operculina14 sites
- Triloculina14 sites
- Amphistegina13 sites
- Cibicides13 sites
- Nummulitidae13 sites
- Rotalia13 sites
- Rotaliida13 sites
- Halimeda12 sites
- Quinqueloculina12 sites
- Cymopolia11 sites
- Cymopolia kurdistanensis11 sites
The Paleobiology Database records 102 sites for Amphiroa, 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
38 references- A study of biostratigraphy of Sinjar Formation in selected sections from northern Iraq44
- Micropaleontology of four sections south of Qoseir, Egypt36
- Fossil and recent calcareous algae from Guam19
- Coralline Algae and Benthic Foraminifera from the Long Formation (middle Miocene) of the Little Andaman Island, India: Biofacies Analysis, Systematics and Palaeoenvironmental Implications13
- Facies analysis and paleoenvironmental interpretation of Piacenzian carbonate deposits from the Guitar Formation of Car Nicobar Island, India12
- Late Chattian platform carbonates with benthic foraminifera and coralline algae from the SE Iberian plate6
- Calcareous algae from the limestone unit of Hut Bay Formation (Late Middle Miocene) of Little Andaman Island, India6
- Microfacies Analysis of Upper Eocene Shallow-water Carbonates from the Rodnei Mountains (N Romania)5
- Coralline Algae from the Cretaceous and Early Tertiary of Greece5
- Marine Cretaceous-Paleogene biofacies and ichnofacies in southern Tibet, China, and their sedimentary significance4
- Non-geniculate coralline algae from the Uttatur Group (Early Cretaceous), south India3
- Fossil algae from the Cretaceous of Varagur, Tiruchirapalli District, Tamil Nadu3
Each of the 190 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. 26 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 Amphiroa
- Source
- Wikipedia/Commons
- Credit
- Show ryu
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Amphiroa”
- 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 itAmphiroideae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lamoroux 1812