Rachiosoma
No picture of Rachiosoma was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Rachiosoma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PhymosomatidaePBDB
- Diet
- omnivorePBDB, for Phymosomatoida
- Life habit
- low-level epifaunalPBDB, for Phymosomatoida
- Motility
- slow-movingPBDB, for Phymosomatoida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 21 million years on record.
The record covers at least 93.9 Mya to 72.2 Mya. No occurrence read is dated outside 100.5 Mya to 66 Mya.
33 occurrences of Rachiosoma 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
33 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
12 formations
- Wata Formation12
- Gulpen Formation5
- Galala Formation2
- Nouvelles Chalk Formation1
- Obourg Formation1
- Prairie Bluff Formation1
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The named rock units Rachiosoma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Rachiosoma and its relatives
Late CretaceousWhere Rachiosoma and its relatives were recorded in the Late Cretaceous.
Found in the same rock
436 taxa- Hemiaster8 sites
- Phymosoma5 sites
- Cardiaster granulosus4 sites
- Chomataster acules4 sites
- Echinocorys4 sites
- Echinogalerus4 sites
- Gauthieria pseudoradiata4 sites
- Ophiocoma senonensis4 sites
- Ophiomusium granulosum4 sites
- Amphiura plana3 sites
- Applinocrinus cretaceus3 sites
- Bourgueticrinus3 sites
- Cardiotaxis3 sites
- Coulonia3 sites
- Cyclaster3 sites
- Gauthieria mosae3 sites
- Lophidiaster pygmaeus3 sites
- Ophioderma substriatum3 sites
- Ophioscolex cretaceus3 sites
- Ophiosmilax alternatus3 sites
- Recurvaster radiatus3 sites
- Serpula3 sites
- Stegophiura hagenowi3 sites
- Temnocidaris3 sites
The Paleobiology Database records 25 sites for Rachiosoma, 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
14 references- Taxonomy and palaeoecology of the Cenomanian-Turonian macroinvertebrates from eastern Sinai, Egypt (part A)6
- Late Cretaceous macrofossils from Sinai, Egypt5
- Phymosomatoid echinoids from the Campanian and the Maastrichtian of Belgium and the Netherlands4
- Palaeoecology and environmental significance of benthic associations from the Cenomanian-Turonian of eastern Sinai, Egypt3
- Late Cretaceous-Early Paleocene echinoderms and the K/T boundary in the southeast Netherlands and the northeast Belgium. - part 4: Echinoids3
- American Upper Cretaceous Echinoidea3
- Die Kreidebildungen des Fürbergs und Sulzbergs bei Siegsdorf in Oberbayern2
- The echinoderms of the Rügen White Chalk (Maastrichtian, Germany)1
- Echinoids from the geological site at Tercis les Bains (Landes, SW France)1
- Late Cretaceous-early Tertiary echinoids from northern Spain: implications for the Cretaceous-Tertiary extinction event1
- All Change at the Cretaceous-Tertiary Boundary? Echinoids from the Maastrichtian and Danian of the Mangyshlak Peninsula, Kazakhstan1
- Additional regular echinoids from the Upper Cretaceous in the Maastricht area (Belgium)1
Each of the 33 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. 2 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 content0
No picture of Rachiosoma was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Rachiosoma, or no answer at all. This entry cannot say which.
No 3D scan of Rachiosoma 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPhymosomatidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pomel 1883