Acanthastrea
Acanthastrea is a genus of large polyp stony corals in the family Lobophylliidae. The colonies are massive and usually flat. The corallites are either circular or angular in shape. The septa are thick near the wall of the corallite, becoming thin near the columella, and have tall teeth. The polyps are extended only at night.

Philippe Bourjon · 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
- LobophylliidaePBDB
- Diet
- microcarnivore, photosymbioticPBDB, for Scleractinia
- Life habit
- intermediate-level epifaunal, colonial, clonalPBDB, for Scleractinia
- Motility
- stationary, attachedPBDB, for Scleractinia
- Vision
- blindPBDB, for Anthozoa
- Environment
- marinePBDB, for Scleractinia
Time the record covers
At least 23 million years on record.
The record covers at least 23.04 Mya to 11.7 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.
101 occurrences of Acanthastrea on record, most of them in the Miocene. 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
101 occurrences- Oligoceneunder 1%
- Miocene50%
- Pliocene6%
- Pleistocene38%
- Holocene5%
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
24 formations
- Sobe Formation · Ryukyu Group7
- Tortonian Limestone Formation7
- Ghasr Ghand Formation4
- Yalam Formation4
- Rudeis Formation3
- Era Beds Formation3
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The named rock units Acanthastrea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 47 occurrences have no formation on record, which is common for older literature.
Acanthastrea and its relatives
MioceneWhere Acanthastrea and its relatives were recorded in the Miocene.
Found in the same rock
773 taxa- Porites32 sites
- Tarbellastraea19 sites
- Favia17 sites
- Bryozoa12 sites
- Tarbellastraea reussiana12 sites
- Acropora11 sites
- Montastraea11 sites
- Montipora11 sites
- Galaxea fascicularis9 sites
- Gastropoda9 sites
- Pavona9 sites
- Conus8 sites
- Goniopora8 sites
- Leptoria phrygia8 sites
- Lithophaga lithophaga8 sites
- Serpulidae8 sites
- Stylophora8 sites
- Creusia7 sites
- Favites7 sites
- Oulophyllia7 sites
- Plesiastrea7 sites
- Pocillopora damicornis7 sites
- Astrea curta6 sites
- Chlamys6 sites
The Paleobiology Database records 50 sites for Acanthastrea, and this reads all 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
39 references- Variations in Pleistocene coral assemblages in space and time in southern and northern central Ryukyu Islands, Japan16
- Evolutionary dynamics of Indo-Pacific reef corals throughout the Neogene7
- Palaeoenvironmental reconstruction based on non-geniculate coralline red algal assemblages in Miocene limestone of central Crete7
- Carbonate deposition in accretionary prism settings: Early Miocene coral limestones and corals of the Makran Mountain Range in southern Iran7
- Les formations recifales coralliennes du Miocene superieur d'Algerie et du Maroc [Upper Miocene coral reef formations from Algeria and Morocco]6
- Ecospace variability along a carbonate platform at the northern boundary of the Miocene reef belt (Upper Langhian, Austria)4
- Ecological stratification in the Pleistocene coral reefs of the Kenya coast4
- Recherches sur les Madreporaires et les formations recifales Miocenes de la Mediterranee occidentale [Miocene corals and reefs from the western Mediterranean]4
- Geological and geographical distribution of reef-corals in Japan4
- Field work Sinai3
- Environmental control of Holocene changes to the world's most northern hermatypic coral outcrop3
- Coral species stability in reef corals of Papua New Guinea and the Indo-Pacific3
Each of the 101 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. 27 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 Acanthastrea
- Source
- Wikipedia/Commons
- Credit
- Philippe Bourjon
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Acanthastrea 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 itLobophylliidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Milne-Edwards and Haime 1848