Grenprisa billingsi
No picture of Grenprisa billingsi was found. Wikipedia and Wikidata were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Grenprisa billingsi firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
Time the record covers
At most 7.7 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Grenprisa billingsi on record, most of them in the Ordovician. 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
4 occurrences- Ordovician100%
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
- Decorah Shale Formation2
- Ion Formation · Galena Group2
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The named rock units Grenprisa billingsi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Grenprisa billingsi and its relatives
OrdovicianWhere Grenprisa billingsi and its relatives were recorded in the Ordovician.
Found in the same rock
26 taxa- Carabocrinus4 sites
- Cincinnaticrinus varibrachialus4 sites
- Cremacrinus4 sites
- Cupulocrinus canaliculatus4 sites
- Cupulocrinus jewetti4 sites
- Glyptocrinus4 sites
- Porocrinus4 sites
- Pycnocrinus4 sites
- Amecystis woodi3 sites
- Archaeocrinus3 sites
- Hemicystites3 sites
- Pleurocystites squamosus3 sites
- Pyrgocystis sardesoni3 sites
- Ateleocystites2 sites
- Cremacrinus guttenbergensis2 sites
- Cupulocrinus humilis2 sites
- Cyclocystoides2 sites
- Pegoasterella pompom2 sites
- Periglyptocrinus2 sites
- Willmanocystis2 sites
- Agelacrinites1 site
- Cupulocrinus levorsoni1 site
- Dendrocrinus1 site
- Palaeocrinus angulatus1 site
The Paleobiology Database records 4 sites for Grenprisa billingsi, 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
2 references- Upper Mississippi Valley Champlainian and Cincinnatian echinoderms3
- The Middle Ordovician crinoid fauna of the Twin Cities area1
Each of the 4 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Grenprisa billingsi was found. Wikipedia and Wikidata were searched and had none.
iDigBio and GBIF were not searched: the Paleobiology Database does not place Grenprisa billingsi firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
No 3D scan of Grenprisa billingsi was found in MorphoSource and Sketchfab.
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 itFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.