Isastrea
Searched as Isastrea guembeli leptotheca. The Paleobiology Database treats Isastrea as the accepted name.
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.

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 most 22 million years on record.
The one occurrence read is dated to somewhere between 227.3 Mya and 205.7 Mya, which is a dating window rather than a span.
1 occurrence of Isastrea on record, most of them in the Late Triassic. 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
1 occurrences- Late Triassic100%
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.
Isastrea and its relatives
Late TriassicWhere Isastrea and its relatives were recorded in the Late Triassic.
Found in the same rock
1,597 taxa- Thamnasteria mettensis55 sites
- Periseris elegantula50 sites
- Thamnasteria42 sites
- Thecosmilia39 sites
- Thamnasteria concinna35 sites
- Montlivaltia34 sites
- Actinaraea33 sites
- Stylina30 sites
- Microsolena24 sites
- Microsolena agariciformis23 sites
- Adelocoenia limbata22 sites
- Plagiostoma21 sites
- Stylosmilia19 sites
- Cladophyllia babeana18 sites
- Dimorpharaea17 sites
- Montlivaltia obconica17 sites
- Bryozoa16 sites
- Comoseris16 sites
- Thecosmilia trichotoma16 sites
- Fungiastraea15 sites
- Heliocoenia (Decaheliocoenia) variabilis15 sites
- Chlamys14 sites
- Comoseris minima14 sites
- Complexastrea zolleriana14 sites
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
1 referenceEach of the 1 occurrence 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content2
Picture of Isastrea
- Source
- Wikipedia/Commons
- 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 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
- Source
- Wikipedia, “Isastrea”
- 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 TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Milne-Edwards and Haime 1851