Isastrea

Isastrea is an extinct genus of corals that lived during the Jurassic and Cretaceous periods. Its fossils have been found in Europe, Africa, North America, Asia and South America.

Isastrea

Amir Ali Iranshahi 3 · CC0 · 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
MontlivaltiidaePBDB
Diet
photosymbiotic, suspension feederPBDB, for Montlivaltiidae
Life habit
colonial, clonalPBDB, for Montlivaltiidae
Motility
stationary, attachedPBDB, for Faviina
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Scleractinia

Time the record covers

At least 221 million years on record.

The record covers at least 227.3 Mya to 5.333 Mya. No occurrence read is dated outside 237 Mya to 2.58 Mya.

Middle Triassic — about 0 of 436 occurrencesLate Triassic — about 12 of 436 occurrencesLate TriassicEarly Jurassic — about 24 of 436 occurrencesEarly JurassicMiddle Jurassic — about 183 of 436 occurrencesLate Jurassic — about 191 of 436 occurrencesEarly Cretaceous — about 22 of 436 occurrencesEarly CretaceousLate Cretaceous — about 3 of 436 occurrencesLate CretaceousPaleocene — about 0 of 436 occurrencesEocene — about 0 of 436 occurrencesOligocene — about 1 of 436 occurrencesMiocene — about 0 of 436 occurrencesPliocene — about 1 of 436 occurrencesPleistocene — about 0 of 436 occurrences242–234 Mya — about 1 occurrence234–226 Mya — about 2 occurrences226–218 Mya — about 1.0 occurrences218–209 Mya — about 1 occurrence209–201 Mya — about 6 occurrences201–193 Mya — about 6 occurrences193–185 Mya — about 9 occurrences185–177 Mya — about 6 occurrences177–169 Mya — about 89 occurrences169–161 Mya — about 98 occurrences161–153 Mya — about 156 occurrences153–145 Mya — about 30 occurrences145–137 Mya — about 5 occurrences137–129 Mya — about 1 occurrence129–121 Mya — about 7 occurrences121–113 Mya — about 10 occurrences113–105 Mya — about 1 occurrence105–97 Mya — about 0.2 occurrences73–64 Mya — about 3 occurrences40–32 Mya — about 0.3 occurrences32–24 Mya — about 0.7 occurrences8.1–0 Mya — about 1 occurrence227.3 Mya5.333 Mya242 Mya0 Mya

436 occurrences of Isastrea 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

436 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

76 formations

Korallenoolith — 52.15°N, 9.98°EKorallenoolith — 52.25°N, 9.70°EKorallenoolith — 52.25°N, 9.50°EKorallenoolith — 52.37°N, 9.70°EKorallenoolith — 52.12°N, 10.10°EKorallenoolith — 52.21°N, 9.20°EKorallenoolith — 52.21°N, 9.13°EKorallenoolith — 52.18°N, 9.60°EKorallenoolith — 52.25°N, 9.57°EKorallenoolith — 51.97°N, 9.62°EWhite Limestone — 51.75°N, 1.17°WWhite Limestone — 51.70°N, 1.78°WWhite Limestone — 51.85°N, 1.27°WWhite Limestone — 51.80°N, 1.63°WWhite Limestone — 51.87°N, 1.27°WWhite Limestone — 51.85°N, 1.42°WWhite Limestone — 51.78°N, 1.48°WWhite Limestone — 51.80°N, 1.88°WCalcaire à polypier de Frotey — 47.73°N, 6.00°EAntalo — 13.63°N, 39.43°EOolithe corallienne de Pagnoz — 47.13°N, 6.15°EBaghamshah — 32.00°N, 57.00°EBaghamshah — 33.83°N, 56.50°EBaghamshah — 33.00°N, 56.50°EHanifa — 22.60°N, 46.37°EHanifa — 25.02°N, 46.22°EHanifa — 26.03°N, 45.17°EHanifa — 25.25°N, 46.00°EHanifa — 24.92°N, 46.25°EHauptraugenstein — 47.48°N, 7.95°EVršatec Limestone — 49.05°N, 18.19°EVršatec Limestone — 49.04°N, 18.16°ESchrattenkalk — 47.42°N, 10.22°ESteeple Ashton Coral Bed — 51.33°N, 1.83°WCalcaire de Caen — 48.82°N, 0.03°ECalcaire de Caen — 48.97°N, 0.13°WSwarzow Limestone — 50.18°N, 20.95°ESwarzow Limestone — 50.23°N, 20.93°ECoral Rag de Trouville — 49.30°N, 0.07°WMassenkalk — 48.68°N, 10.22°EMassenkalk — 48.89°N, 11.94°EPatcham — 23.52°N, 69.00°EPatcham — 23.70°N, 69.05°ETichilesti — 44.42°N, 28.48°ESanganeh — 36.18°N, 59.83°ECoral Rag — 53.98°N, 1.53°WCoral Rag — 51.77°N, 1.25°WTataouine — 32.57°N, 10.35°ETataouine — 33.00°N, 10.47°ECassian — 46.52°N, 12.10°ECassian — 46.51°N, 11.76°EParvadeh — 33.67°N, 57.00°ESutton stone — 51.43°N, 3.55°WCoralline Oolite — 52.31°N, 0.26°WCoralline Oolite — 51.76°N, 1.20°W

Loading coastlines…

The named rock units Isastrea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 52 further formations hold fewer occurrences each and are not listed. 255 occurrences have no formation on record, which is common for older literature.

Isastrea and its relatives

Late Jurassic

Where Isastrea and its relatives were recorded in the Late Jurassic.

Found in the same rock

1,597 taxa

The Paleobiology Database records 285 sites for Isastrea, 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

118 references

Each of the 436 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. 106 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 Isastrea

Credit
Amir Ali Iranshahi 3
Licence
CC0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access was 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 itMontlivaltiidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Milne-Edwards and Haime 1851