Placosmilia

via iDigBio · CC0 · 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
- 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 153 million years on record.
The record covers at least 165.3 Mya to 11.63 Mya. No occurrence read is dated outside 168.2 Mya to 5.333 Mya.
65 occurrences of Placosmilia on record, most of them in the Eocene. 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
65 occurrencesThese 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
18 formations
- Hochmoos Formation · Gosau Group4
- Promina Formation3
- Alisitos Formation2
- San Juan Formation · La Esperanza Group2
- Pirabas Formation2
- Gelingseh Formation2
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The named rock units Placosmilia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 36 occurrences have no formation on record, which is common for older literature.
Placosmilia and its relatives
EoceneWhere Placosmilia and its relatives were recorded in the Eocene.
Found in the same rock
888 taxa- Dentalium5 sites
- Montlivaltia5 sites
- Aulosmilia aspera4 sites
- Ostracoda4 sites
- Polystrata alba4 sites
- Quinqueloculina4 sites
- Trochosmilia multisinuosa4 sites
- Actinacis cognata3 sites
- Actinacis martiniana3 sites
- Ammobaculites3 sites
- Archaeolithothamnium3 sites
- Aulosmilia cuneiformis3 sites
- Balanophyllia3 sites
- Cardita3 sites
- Cardium3 sites
- Chama3 sites
- Cladocora gracilis3 sites
- Columactinastraea formosa3 sites
- Columastrea striata3 sites
- Foraminifera3 sites
- Gaudryina3 sites
- Lucina3 sites
- Natica3 sites
- Phyllosmilia aegiale3 sites
The Paleobiology Database records 26 sites for Placosmilia, 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
40 references- A coral hotspot from a hot past: The EECO and post-EECO rich reef coral fauna from Friuli (Eocene, NE Italy)5
- Formas anomalas en los corales eocenos de la Cuenca de Igualada (Noreste de Espania)3
- Taxonomy of Upper Cretaceous scleractinian corals of the Gosau Group (Weissenbackalm, Steiermark, Austria)3
- Faziesverteilung und Fossilvergesellschaftungen im karbonatischen Flachwassser-Milieu der alpinen Oberkreide (Gosau-Formation) [Facies and fossils from the Upper Cretaceous carbonate shallow water deposits of the Eastern Alps (Gosau Formation)]3
- A Bükkhegyseg Eocen Koralljai [Eocene corals from the Bükk Mountains]3
- Sponges and corals from the Middle Eocene (Bartonian) marly formations of the Pamplona Basin (Navarre, western Pyrenees): taphonomy, taxonomy, and paleoenvironments2
- New opinions on coral taxonomy2
- Taxonomie und Ontogenie von Korallen der ostalpinen Oberkreide (Hochmoos- und Grabenbachschichten, Gosau Gruppe, Santon)2
- Late Campanian-Maastrichtian corals from the United Arab Emirates-Oman border region2
- The Upper Cretaceous near Maurach (Tyrol, Austria)2
- Geologie, Paläontologie und Palökologie der südostbayerischen unter-priabonen (Ober-Eozän) Riffkalkvorkommen bei Hallthurm (Nördliche Kalkalpen) und der Kirchbergs bei Neubeuern (Helvetikum)2
- Lutetian corals from Crni Kal in Yugoslavia2
Each of the 65 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. 28 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 Placosmilia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial-ShareAlike
- 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 itMontlivaltiidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Milne-Edwards and Haime 1848