Ochrophyta

Ochrophytes, also known as heterokontophytes or stramenochromes, are a phylum of algae. They are the photosynthetic stramenopiles, a group of eukaryotes, organisms with a cell nucleus, characterized by the presence of two unequal flagella, one of which has tripartite hairs called mastigonemes. In particular, they are characterized by photosynthetic organelles or plastids enclosed by four membranes, with membrane-bound compartments called thylakoids organized in piles of three, chlorophyll a and c as their photosynthetic pigments, and additional pigments such as β-carotene and xanthophylls. Ochrophytes are one of the most diverse lineages of eukaryotes, containing ecologically important algae such as brown algae and diatoms. They are classified either as phylum Ochrophyta, Heterokontophyta or as subphylum Ochrophytina within phylum Gyrista. Their plastids are of red algal origin.

Ochrophyta

Peter Southwood · 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
StramenopilesPBDB

Time the record covers

At least 419 million years on record.

The record covers at least 419.62 Mya to 11.7 ka. No occurrence read is dated outside 486.85 Mya to 0 Mya.

Cambrian — about 0 of 12000 occurrencesOrdovician — about 2 of 12000 occurrencesOrdovicianSilurian — about 2 of 12000 occurrencesDevonian — about 0 of 12000 occurrencesCarboniferous — about 0 of 12000 occurrencesPermian — about 5 of 12000 occurrencesPermianEarly Triassic — about 1 of 12000 occurrencesMiddle Triassic — about 0 of 12000 occurrencesLate Triassic — about 1 of 12000 occurrencesEarly Jurassic — about 0 of 12000 occurrencesMiddle Jurassic — about 2 of 12000 occurrencesLate Jurassic — about 4 of 12000 occurrencesEarly Cretaceous — about 1 of 12000 occurrencesEarly CretaceousLate Cretaceous — about 1972 of 12000 occurrencesPaleocene — about 738 of 12000 occurrencesEocene — about 80 of 12000 occurrencesOligocene — about 166 of 12000 occurrencesMiocene — about 3129 of 12000 occurrencesPliocene — about 2324 of 12000 occurrencesPleistocene — about 3413 of 12000 occurrences497–480 Mya — about 0.3 occurrences480–463 Mya — about 0.7 occurrences463–447 Mya — about 0.7 occurrences447–430 Mya — about 0.7 occurrences430–414 Mya — about 1 occurrence298–281 Mya — about 0.9 occurrences281–265 Mya — about 3 occurrences265–248 Mya — about 2 occurrences248–232 Mya — about 0.4 occurrences232–215 Mya — about 0.5 occurrences215–199 Mya — about 0.3 occurrences182–166 Mya — about 2 occurrences166–149 Mya — about 3 occurrences149–132 Mya — about 0.8 occurrences132–116 Mya — about 1 occurrence99–83 Mya — about 113 occurrences83–66 Mya — about 1844 occurrences66–50 Mya — about 757 occurrences50–33 Mya — about 92 occurrences33–17 Mya — about 720 occurrences17–0 Mya — about 8455 occurrences419.62 Mya11.7 ka497 Mya0 Mya

12,000+ occurrences of Ochrophyta on record. 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

12,000 occurrences read

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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.

Found in

at least 59 formations

Mason River — 69.46°N, 126.97°WLopez de Bertodano — 64.25°S, 56.75°WSobral — 64.25°S, 56.75°WKanguk — 75.63°N, 119.37°WKanguk — 79.00°N, 85.37°WKanguk — 78.00°N, 103.00°WPungo River — 35.40°N, 76.80°WLatah — 47.56°N, 117.22°WEmbetsu — 44.35°N, 141.73°EChoptank — 38.44°N, 76.44°WSmoking Hills — 69.46°N, 126.97°WKylan — 59.92°N, 164.78°EFormación Coquimbo — 29.08°S, 71.46°WFormación Coquimbo — 30.32°S, 71.52°WFormación Coquimbo — 30.34°S, 71.57°WKelseyville — 38.96°N, 122.63°WKelseyville — 38.92°N, 122.88°WKelseyville — 38.95°N, 122.85°WDaineji — 37.37°N, 141.04°ERosarito Beach — 32.12°N, 116.80°WCalvert — 37.93°N, 77.51°WCalvert — 37.71°N, 76.97°WCalvert — 37.60°N, 77.05°WAlturas — 41.49°N, 120.65°WGadeb — 7.12°N, 39.37°EElmore — 50.80°N, 1.20°WBateque — 26.38°N, 112.59°WBateque — 26.96°N, 113.04°WBateque — 26.91°N, 113.01°WTatsunokuchi — 39.07°N, 141.18°ETerrebonne — 44.36°N, 121.30°WModelo — 34.15°N, 118.47°WChepotsunai — 44.32°N, 141.67°EMonterey — 34.17°N, 118.61°WMonterey — 33.71°N, 118.28°WMonterey — 34.14°N, 118.45°W

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The named rock units Ochrophyta has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 35 further formations hold fewer occurrences each and are not listed. 8,704 occurrences have no formation on record, which is common for older literature.

Found in the same rock

485 taxa

The Paleobiology Database records at least 113 sites for Ochrophyta, and this reads 113 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

at least 92 references

Each of the 12,000 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. That read hit its cap, so each count is a floor. 80 further references are not listed. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Ochrophyta

Credit
Peter Southwood
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Ochrophyta 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 itStramenopiles through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cavalier-Smith 1995