Grewingkia crassa

Grewingkia crassa

Yale Peabody Museum · CC0 · via GBIF. 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 4.7 million years on record.

Every occurrence read is dated to somewhere between 450.2 Mya and 445.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 7 of 7 occurrencesOrdovician450–450 Mya — about 0.4 occurrences450–450 Mya — about 1 occurrence450–450 Mya — about 1 occurrence450–450 Mya — about 0.9 occurrences450–449 Mya — about 0.2 occurrences449–449 Mya — about 0.2 occurrences449–449 Mya — about 0.2 occurrences449–449 Mya — about 0.2 occurrences449–449 Mya — about 0.2 occurrences449–448 Mya — about 0.2 occurrences448–448 Mya — about 0.2 occurrences448–448 Mya — about 0.2 occurrences448–448 Mya — about 0.2 occurrences448–448 Mya — about 0.2 occurrences448–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–447 Mya — about 0.2 occurrences447–446 Mya — about 0.2 occurrences446–446 Mya — about 0.2 occurrences446–446 Mya — about 0.2 occurrences446–446 Mya — about 0.2 occurrences446–446 Mya — about 0.2 occurrences446–445 Mya — about 0.1 occurrences450.7 Mya445 Mya

7 occurrences of Grewingkia crassa 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

7 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

3 formations

Aleman — 32.60°N, 106.53°WAleman — 31.95°N, 106.48°WAleman — 31.78°N, 106.47°WRed River — 50.08°N, 96.70°WRed River — 50.11°N, 96.93°WRed River — 50.13°N, 96.84°WCutter — 31.95°N, 106.48°W

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The named rock units Grewingkia crassa has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Grewingkia crassa and its relatives

Ordovician

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

Found in the same rock

20 taxa

The Paleobiology Database records 7 sites for Grewingkia crassa, 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 7 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 crassa

Source
GBIF
Credit
Yale Peabody Museum
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Grewingkia crassa 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 itGrewingkia through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Elias 1981