Actinostreon

Actinostreon

via iDigBio · CC BY · via iDigBio. 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
ArctostreinaePBDB
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 105 million years on record.

The record covers at least 227.3 Mya to 121.4 Mya. No occurrence read is dated outside 233.6 Mya to 113.2 Mya.

Late Triassic — about 10 of 706 occurrencesLate TriassicEarly Jurassic — about 149 of 706 occurrencesEarly JurassicMiddle Jurassic — about 279 of 706 occurrencesMiddle JurassicLate Jurassic — about 261 of 706 occurrencesLate JurassicEarly Cretaceous — about 7 of 706 occurrencesEarly Cretaceous236–232 Mya — about 0.3 occurrences232–228 Mya — about 0.7 occurrences228–223 Mya — about 0.1 occurrences207–203 Mya — about 6 occurrences203–198 Mya — about 7 occurrences198–194 Mya — about 18 occurrences194–190 Mya — about 33 occurrences190–186 Mya — about 40 occurrences186–182 Mya — about 36 occurrences182–178 Mya — about 11 occurrences178–173 Mya — about 10 occurrences173–169 Mya — about 17 occurrences169–165 Mya — about 61 occurrences165–161 Mya — about 213 occurrences161–157 Mya — about 140 occurrences157–153 Mya — about 81 occurrences153–148 Mya — about 21 occurrences148–144 Mya — about 5 occurrences144–140 Mya — about 0.3 occurrences127–123 Mya — about 1 occurrence123–119 Mya — about 2 occurrences119–115 Mya — about 3 occurrences115–111 Mya — about 1 occurrence227.3 Mya121.4 Mya236 Mya111 Mya

706 occurrences of Actinostreon on record, most of them in the Middle 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

706 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

88 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°ETataouine — 33.00°N, 10.47°EArgiles a Lopha gregarea — 49.30°N, 0.07°WCalcaire a oolithes ferrugineuses — 49.30°N, 0.07°WAntalo — 13.63°N, 39.42°EAntalo — 13.65°N, 39.42°EAntalo — 13.63°N, 39.45°ELautaro — 29.11°S, 70.44°WLautaro — 29.01°S, 70.20°WLautaro — 29.25°S, 70.27°WLautaro — 29.36°S, 70.40°WLautaro — 29.36°S, 70.19°WLautaro — 28.16°S, 69.86°WLautaro — 28.57°S, 69.91°WLautaro — 28.57°S, 70.10°WLautaro — 28.66°S, 70.07°WHanifa — 23.50°N, 46.85°EHanifa — 24.52°N, 45.95°EHanifa — 24.95°N, 46.15°EHanifa — 25.63°N, 45.67°EHanifa — 24.53°N, 46.61°EHanifa — 25.56°N, 45.39°EShuqra — 14.27°N, 48.57°EShuqra — 14.30°N, 48.47°EShuqra — 14.32°N, 48.45°ETrigonia clavellata — 50.80°N, 2.28°WAlcobaca — 39.32°N, 9.35°WAlcobaca — 38.42°N, 9.22°WAlcobaca — 39.52°N, 9.13°WMadbi — 14.27°N, 48.56°EMadbi — 14.32°N, 48.45°EHabo beds — 23.20°N, 69.80°ECoral Rag de Trouville — 48.60°N, 0.63°ECoral Rag de Trouville — 49.37°N, 0.08°ECoral Rag de Trouville — 49.30°N, 0.07°WLower Calcareous Grit — 51.75°N, 1.25°WLower Calcareous Grit — 54.21°N, 0.29°WNothe Grits — 50.63°N, 2.37°WNothe Grits — 50.80°N, 2.28°WKossen — 47.66°N, 12.45°EKossen — 47.55°N, 12.17°EKossen — 47.58°N, 12.57°EBarahona Limestone — 41.93°N, 3.15°WBarahona Limestone — 40.67°N, 1.20°WKehalia — 30.71°N, 33.37°EKehalia — 30.68°N, 33.30°EGadhada — 23.50°N, 70.50°ECoquina — 50.81°N, 20.26°ECoquina — 51.84°N, 16.59°EReuchenette — 47.40°N, 7.03°EMontejunto — 39.50°N, 9.15°WMughanniyya — 32.18°N, 35.77°EMughanniyya — 32.10°N, 35.63°E

Loading coastlines…

The named rock units Actinostreon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 64 further formations hold fewer occurrences each and are not listed. 210 occurrences have no formation on record, which is common for older literature.

Actinostreon and its relatives

Middle Jurassic

Where Actinostreon and its relatives were recorded in the Middle Jurassic.

Found in the same rock

742 taxa

The Paleobiology Database records 435 sites for Actinostreon, 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

82 references

Each of the 706 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. 70 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 content2

Picture of Actinostreon

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
Steinkern
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itArctostreinae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bayle 1878