Placospongia sp.
Placospongia is a genus of sea sponges belonging to the family Placospongiidae.

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.
Time the record covers
At least 94 million years on record.
The record covers at least 132.6 Mya to 37.71 Mya. No occurrence read is dated outside 137.05 Mya to 33.9 Mya.
2 occurrences of Placospongia sp. on record, most of them in the Early Cretaceous. 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
2 occurrences- Early Cretaceous50%
- Eocene50%
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
2 formations
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The named rock units Placospongia sp. has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Placospongia sp. and its relatives
Early CretaceousWhere Placospongia sp. and its relatives were recorded in the Early Cretaceous.
Found in the same rock
18 taxa- Agelas sp.1 site
- Alectona1 site
- Bubarida indet.1 site
- cf. Lerouxia digitata1 site
- Diplastrella megastellata1 site
- Ectyonopsis sp.1 site
- Erylus1 site
- Geodia1 site
- Lithistidae indet.1 site
- Pachastrellidae1 site
- Phymaraphiniidae1 site
- Placinolopha sarai1 site
- Samus1 site
- Stelletta1 site
- Theonellidae1 site
- Triptolemma1 site
- Vetulina1 site
- Zyzzya sp.1 site
The Paleobiology Database records 1 site for Placospongia sp., and this reads all of them. The number is how many of those sites it was catalogued from too.
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
2 references- Hi diversity of siliceous sponges in Western Tethyan areas during the Eocene: Palaeobiogeographical, ecological and taxonomic significance1
- Late Valanginian sponge spicules from north-eastern Sardinia (Italy)1
Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Placospongia sp.
- Source
- Wikipedia/Commons
- Credit
- Philippe Bourjon
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Placospongia sp. 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 itFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.