Coeloptychium agaricoides

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
- CoeloptychiumPBDB
- Diet
- suspension feederPBDB, for Lychniscosa
- Life habit
- epifaunalPBDB, for Lychniscosa
- Motility
- stationary, attachedPBDB, for Lychniscosa
- Vision
- blindPBDB, for Hexactinellida
- Environment
- marinePBDB, for Hexactinellida
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Coeloptychium agaricoides on record, most of them in the Late 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
8 occurrences- Late Cretaceous100%
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
- Ilsenburg Formation1
- Upper Chalk Formation · Chalk Group1
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The named rock units Coeloptychium agaricoides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Coeloptychium agaricoides and its relatives
Late CretaceousWhere Coeloptychium agaricoides and its relatives were recorded in the Late Cretaceous.
Found in the same rock
265 taxa- Callopegma acaule4 sites
- Coeloptychium deciminum4 sites
- Doryderma (Brochodora) roemeri4 sites
- Jereica polystoma4 sites
- Leptophragma murchisoni4 sites
- Phymatella bulbosa4 sites
- Plinthosella squamosa4 sites
- Ragadinia rimosa4 sites
- Sporadoscinia quenstedti4 sites
- Amphithelion (Amphithelion) macrommata3 sites
- Aphrocallistes alveolites3 sites
- Astrocladia subramosa3 sites
- Aulaxinia sulcifera3 sites
- Chonella tenuis3 sites
- Coeloptychium incisum3 sites
- Coeloptychium sulciferum3 sites
- Coeloscyphia racemosa3 sites
- Colossolacis plicata3 sites
- Coscinopora infundibuliformis3 sites
- Coscinostoma fragilis3 sites
- Homalodoriana ficus3 sites
- Homalodoriana plana3 sites
- Jereica oligostoma3 sites
- Leiochonia cryptoporosa3 sites
The Paleobiology Database records 6 sites for Coeloptychium agaricoides, 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
4 references- Die Kieselspongien der oberen Kreide von Nordwestdeutschland, Teil 2 Triaxonia (Hexactinellida) [Upper Cretaceous sponges from north-western Germany, part 2 Triaxonia (Hexactinellida)]4
- Hexactinellid faunas in the chalk of England and Ireland2
- Die Spongien der Ilsenburg-Entwicklung (Oberes Unter-Campan) der Subherzynen Kreidemulde [Sponges of the Ilsenburg Formation (Upper Lower Campanian) of the Subhercynian Cretaceous Basin1
- Catalogue of the fossil sponges in the Geological Department of the British Museum (Natural History)1
Each of the 8 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. 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 Coeloptychium agaricoides
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCoeloptychium through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Goldfuss 1826)