Actinostreon gregarea

Actinostreon gregareum (J.Sowerby, 1815) J.Sowerby, 1815, a relative of Actinostreon gregarea — not Actinostreon gregarea itself

Not Actinostreon gregarea. This is Actinostreon gregareum (J.Sowerby, 1815) J.Sowerby, 1815, a relative — both are Ostreidae.

via GBIF · CC0 · via GBIF. 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
ActinostreonPBDB
Diet
suspension feederPBDB, for Ostreida
Life habit
epifaunalPBDB, for Ostreida
Motility
stationary, attachedPBDB, for Ostreida
Vision
blindPBDB, for Bivalvia
Environment
marine,brackishPBDB, for Ostreida

Time the record covers

At least 52 million years on record.

The record covers at least 201.4 Mya to 149.2 Mya. No occurrence read is dated outside 205.7 Mya to 143.1 Mya.

Late Triassic — about 2 of 384 occurrencesLate TriassicEarly Jurassic — about 49 of 384 occurrencesEarly JurassicMiddle Jurassic — about 160 of 384 occurrencesMiddle JurassicLate Jurassic — about 173 of 384 occurrencesLate JurassicEarly Cretaceous — about 0 of 384 occurrences207–205 Mya — about 0.4 occurrences205–203 Mya — about 1 occurrence203–200 Mya — about 0.6 occurrences200–198 Mya — about 0.1 occurrences198–196 Mya — about 0.1 occurrences196–194 Mya — about 0.1 occurrences194–192 Mya — about 3 occurrences192–190 Mya — about 5 occurrences190–187 Mya — about 5 occurrences187–185 Mya — about 5 occurrences185–183 Mya — about 13 occurrences183–181 Mya — about 6 occurrences181–179 Mya — about 4 occurrences179–177 Mya — about 4 occurrences177–174 Mya — about 3 occurrences174–172 Mya — about 0.6 occurrences172–170 Mya — about 4 occurrences170–168 Mya — about 10 occurrences168–166 Mya — about 23 occurrences166–164 Mya — about 59 occurrences164–161 Mya — about 65 occurrences161–159 Mya — about 27 occurrences159–157 Mya — about 61 occurrences157–155 Mya — about 39 occurrences155–153 Mya — about 23 occurrences153–151 Mya — about 12 occurrences151–148 Mya — about 6 occurrences148–146 Mya — about 2 occurrences146–144 Mya — about 1 occurrence144–142 Mya — about 0.1 occurrences201.4 Mya149.2 Mya207 Mya142 Mya

384 occurrences of Actinostreon gregarea on record, most of them in the Late Jurassic. 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

384 occurrences

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

58 formations

Dhruma — 24.23°N, 46.58°EDhruma — 24.89°N, 46.58°EDhruma — 23.30°N, 46.25°EDhruma — 23.08°N, 46.33°EDhruma — 22.62°N, 46.00°EDhruma — 22.53°N, 46.17°EDhruma — 25.33°N, 45.50°EDhruma — 23.97°N, 46.17°EDhruma — 25.53°N, 45.00°EDhruma — 26.92°N, 44.00°EDhruma — 25.17°N, 45.50°EDhruma — 25.37°N, 45.00°EDhruma — 25.78°N, 45.25°EDhruma — 25.05°N, 45.67°EDhruma — 23.97°N, 46.00°EDhruma — 22.83°N, 46.83°EDhruma — 21.88°N, 45.83°EDhruma — 25.37°N, 45.50°EDhruma — 25.70°N, 45.67°EDhruma — 25.97°N, 45.00°EDhruma — 26.20°N, 44.83°EDhruma — 26.33°N, 44.83°EChari — 23.67°N, 69.00°EChari — 23.50°N, 70.50°EArgiles a Lopha gregarea — 49.30°N, 0.07°WTataouine — 33.00°N, 10.47°EAntalo — 13.63°N, 39.42°EAntalo — 13.65°N, 39.42°EAntalo — 13.63°N, 39.45°ECalcaire a oolithes ferrugineuses — 49.30°N, 0.07°WAlcobaca — 39.32°N, 9.35°WAlcobaca — 38.42°N, 9.22°WAlcobaca — 39.52°N, 9.13°WHanifa — 23.50°N, 46.85°EHanifa — 24.52°N, 45.95°EHanifa — 25.02°N, 46.22°EHanifa — 25.63°N, 45.67°EHanifa — 24.53°N, 46.61°EHanifa — 25.56°N, 45.39°ETrigonia clavellata — 50.80°N, 2.28°WBarahona Limestone — 41.93°N, 3.15°WBarahona Limestone — 40.67°N, 1.20°WCoquina — 50.81°N, 20.26°ECoquina — 51.84°N, 16.59°ECoral Rag de Trouville — 48.60°N, 0.63°ECoral Rag de Trouville — 49.30°N, 0.07°WMontejunto — 39.50°N, 9.15°WRukesa Shales — 4.05°N, 41.02°ERukesa Shales — 3.98°N, 41.08°ERahmu Shales — 3.87°N, 41.20°EBihen Limestone — 10.25°N, 45.12°EBihen Limestone — 10.08°N, 45.32°EBihen Limestone — 11.07°N, 48.93°EBihen Limestone — 10.15°N, 45.10°ETuotuohe — 32.73°N, 91.97°ETuotuohe — 33.28°N, 91.85°ETuotuohe — 32.98°N, 91.97°ETuwaiq Mt.Lst. — 22.43°N, 46.42°ETuwaiq Mt.Lst. — 25.05°N, 45.67°ETuwaiq Mt.Lst. — 25.78°N, 45.25°EHabo beds — 23.20°N, 69.80°ECalcaires marno-crayeux superieurs — 49.83°N, 4.20°ECalcaires marno-crayeux superieurs — 49.88°N, 4.09°EReuchenette — 47.40°N, 7.03°ELautaro — 29.00°S, 70.18°WLautaro — 29.25°S, 70.27°WLautaro — 28.16°S, 69.86°WKehalia — 30.71°N, 33.37°EKehalia — 30.68°N, 33.30°ECoralline Oolite — 53.97°N, 1.08°WCoralline Oolite — 54.21°N, 0.29°W

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The named rock units Actinostreon gregarea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 34 further formations hold fewer occurrences each and are not listed. 103 occurrences have no formation on record, which is common for older literature.

Actinostreon gregarea and its relatives

Late Jurassic

Where Actinostreon gregarea and its relatives were recorded in the Late Jurassic.

Found in the same rock

1,279 taxa

The Paleobiology Database records 269 sites for Actinostreon gregarea, 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

58 references

Each of the 384 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. 46 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 Actinostreon gregareum (J.Sowerby, 1815) J.Sowerby, 1815

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Actinostreon gregarea 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itActinostreon through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1815)