Grewingkia canadensis

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.

Grewingkia canadensis

Uncredited · 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
GrewingkiaPBDB
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 6.5 million years on record.

Every occurrence read is dated to somewhere between 449.6 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 9 of 9 occurrencesOrdovicianSilurian — about 0 of 9 occurrences450–449 Mya — about 0.4 occurrences449–449 Mya — about 0.5 occurrences449–449 Mya — about 0.5 occurrences449–449 Mya — about 0.5 occurrences449–448 Mya — about 0.5 occurrences448–448 Mya — about 0.5 occurrences448–448 Mya — about 0.5 occurrences448–448 Mya — about 0.5 occurrences448–447 Mya — about 0.5 occurrences447–447 Mya — about 0.5 occurrences447–447 Mya — about 0.5 occurrences447–447 Mya — about 0.5 occurrences447–446 Mya — about 0.5 occurrences446–446 Mya — about 0.5 occurrences446–446 Mya — about 0.5 occurrences446–446 Mya — about 0.5 occurrences446–445 Mya — about 0.3 occurrences445–445 Mya — about 0.2 occurrences445–445 Mya — about 0.2 occurrences445–445 Mya — about 0.2 occurrences445–444 Mya — about 0.2 occurrences444–444 Mya — about 0.2 occurrences444–444 Mya — about 0.2 occurrences444–444 Mya — about 0.2 occurrences444–443 Mya — about 0.2 occurrences443–443 Mya — about 0.2 occurrences450.1 Mya442.6 Mya

9 occurrences of Grewingkia canadensis 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

9 occurrences

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

6 formations

Upper Whitewater — 38.78°N, 85.36°WDillsboro — 39.07°N, 85.25°WGeorgian Bay — 46.02°N, 83.73°WGeorgian Bay — 45.83°N, 82.42°WNicolet River — 45.50°N, 75.00°WPontgravé River — 45.50°N, 75.00°W

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The named rock units Grewingkia canadensis 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.

Grewingkia canadensis and its relatives

Ordovician

Where Grewingkia canadensis and its relatives were recorded in the Ordovician.

Found in the same rock

24 taxa

The Paleobiology Database records 9 sites for Grewingkia canadensis, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

Each of the 9 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 content1

Picture of Grewingkia canadensis

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Grewingkia canadensis 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.

The description on this site

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 itGrewingkia through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Billings 1862)