Grewingkia
Searched as Grewingkia haysii haysii. The Paleobiology Database treats Grewingkia as the accepted name.
Grewingkia is a genus of extinct Paleozoic Rugose corals, found in Indiana. It contains at least one species, Grewingkia canadensis, which lived during the Ordovician Period.

Wilson44691 · Public Domain · 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.
On record
Recorded, not inferred- Sits inside
- StreptelasmatinaePBDB
- Diet
- suspension feederPBDB, for Rugosa
- Life habit
- epifaunalPBDB, for Rugosa
- Motility
- stationary, attachedPBDB, for Rugosa
- Vision
- blindPBDB, for Anthozoa
- Environment
- marinePBDB, for Rugosa
Time the record covers
At most 6.4 million years on record.
Every occurrence read is dated to somewhere between 449.5 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Grewingkia 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
2 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
1 formation
Loading coastlines…
The named rock units Grewingkia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Grewingkia and its relatives
OrdovicianWhere Grewingkia and its relatives were recorded in the Ordovician.
Found in the same rock
719 taxa- Trepostomata40 sites
- Rafinesquina alternata34 sites
- Salvadorea31 sites
- Streptelasma divaricans31 sites
- Zaphrenthis haysii30 sites
- Bryozoa29 sites
- Hiscobeccus capax27 sites
- Bighornia patella26 sites
- Hebertella occidentalis26 sites
- Platystrophia25 sites
- Strophomena planumbona24 sites
- Isotelus21 sites
- Strophomena18 sites
- Plaesiomys subquadratus17 sites
- Catenipora15 sites
- Protaraea richmondensis15 sites
- Receptaculites15 sites
- Hiscobeccus12 sites
- Streptelasma12 sites
- Deiracorallium11 sites
- Palaeophyllum11 sites
- Calapoecia9 sites
- Eochonetes clarksvillensis9 sites
- Rhynchotrema9 sites
The Paleobiology Database records 175 sites for Grewingkia, 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
1 referenceEach 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 Grewingkia
- Source
- Wikipedia/Commons
- Credit
- Wilson44691
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Grewingkia 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, “Grewingkia”
- 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 itStreptelasmatinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dybowski 1873