Rhenopyrgus
Rhenopyrgus is an extinct echinoderm in the class Edrioasteroidea, which existed during the Devonian in what is now France and Germany, the Ordovician in Iowa and Illinois, U.S.A.; and the Silurian of Argentina. It was described by Dehm in 1961, and the type species is R. coronaeformis, which was originally described by J. Rievers as a species in the genus Pyrgocystis, in 1961.
No picture of Rhenopyrgus 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 Rhenopyrgus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- RhenopyrgidaePBDB
- Diet
- suspension feederPBDB, for Edrioasteroidea
- Life habit
- low-level epifaunalPBDB, for Edrioasteroidea
- Motility
- stationary, attached, epibiontPBDB, for Edrioasteroidea
- Vision
- limitedPBDB, for Edrioasteroidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 34 million years on record.
The record covers at least 445.5 Mya to 410.62 Mya. No occurrence read is dated outside 449.6 Mya to 399.5 Mya.
10 occurrences of Rhenopyrgus on record, most of them in the Devonian. 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
10 occurrences- Ordovician30%
- Silurian10%
- Devonian60%
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
7 formations
- Hunsrück Slate Formation2
- Brainard Shale Formation · Maquoketa Group1
- Neda Formation · Maquoketa Group1
- Saint-Cenere Formation1
- South Threave Formation · Drummock Group1
- Merzâ- Akhsaï Formation · Rich Group1
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The named rock units Rhenopyrgus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Rhenopyrgus and its relatives
DevonianWhere Rhenopyrgus and its relatives were recorded in the Devonian.
Found in the same rock
252 taxa- Dendrocrinus3 sites
- Porocrinus3 sites
- <Dendrocystitid>2 sites
- Anartiocystis2 sites
- Carabocrinus2 sites
- Codiacrinus2 sites
- Cupulocrinus2 sites
- Cupulocrinus angustatus2 sites
- Diamenocrinus2 sites
- Diamphidiocystis2 sites
- Enopleura weatherbyi2 sites
- Eutaxocrinus2 sites
- Nahecaris2 sites
- Plicodendrocrinus casei2 sites
- Xenocrinus2 sites
- Acanthocrinus1 site
- Actinodiscus wrighti1 site
- Anetoceras aff. hunsrueckianium1 site
- Anetoceras arduennense1 site
- Antihomocrinus1 site
- Anulocrinus1 site
- Aparchites1 site
- Archasterina cornuta1 site
- Arcichnus saltatus1 site
The Paleobiology Database records 7 sites for Rhenopyrgus, 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
7 references- Ecological Change during the early Emsian (Devonian) in the Tafilalt (Morocco),the Origin of the Ammonoidea,and the First African Pyrgocystid Edrioasteroids,Machaerids and Phyllocarids2
- Upper Mississippi Valley Champlainian and Cincinnatian echinoderms2
- Pflanzen im Hunsrueckschiefer2
- The first report of South American edrioasteroids and the paleoecology and ontogeny of rhenopyrgid echinoderms1
- Zlíchovian faunas with early ammonoids from Morocco and their use for the correlation of the eastern Anti-Atlas and the western Dra Valley1
- The Lady Burn starfish beds1
- Nouveaux echinodermes des schistes et calcaires du Devonien inferieure du bassin de Laval (Massif Armoricain, France)1
Each of the 10 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 content0
No picture of Rhenopyrgus 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 Rhenopyrgus, or no answer at all. This entry cannot say which.
No 3D scan of Rhenopyrgus 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
- Source
- Wikipedia, “Rhenopyrgus”
- 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 itRhenopyrgidae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Dehm 1961)