Gyronema semicarinatum

No picture of Gyronema semicarinatum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Gyronema semicarinatum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
GyronemaPBDB
Diet
detritivorePBDB, for Murchisoniina
Life habit
epifaunalPBDB, for Murchisoniina
Motility
slow-movingPBDB, for Murchisoniina
Vision
limitedPBDB, for Murchisoniina
Environment
coastal,marinePBDB, for Murchisoniina

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.

Ordovician — about 20 of 20 occurrencesOrdovician458–457 Mya — about 0.2 occurrences457–457 Mya — about 0.8 occurrences457–457 Mya — about 0.8 occurrences457–456 Mya — about 0.8 occurrences456–456 Mya — about 0.8 occurrences456–456 Mya — about 0.8 occurrences456–455 Mya — about 0.8 occurrences455–455 Mya — about 0.8 occurrences455–455 Mya — about 0.8 occurrences455–455 Mya — about 0.8 occurrences455–454 Mya — about 0.8 occurrences454–454 Mya — about 0.8 occurrences454–454 Mya — about 0.8 occurrences454–453 Mya — about 0.7 occurrences453–453 Mya — about 0.7 occurrences453–453 Mya — about 0.7 occurrences453–453 Mya — about 0.7 occurrences453–452 Mya — about 0.7 occurrences452–452 Mya — about 0.7 occurrences452–452 Mya — about 0.7 occurrences452–451 Mya — about 0.7 occurrences451–451 Mya — about 0.7 occurrences451–451 Mya — about 0.7 occurrences451–451 Mya — about 0.7 occurrences451–450 Mya — about 0.7 occurrences450–450 Mya — about 0.7 occurrences450–450 Mya — about 0.7 occurrences450–449 Mya — about 0.2 occurrences457.8 Mya449.1 Mya

20 occurrences of Gyronema semicarinatum 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

20 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

15 formations

Dunleith — 42.00°N, 90.50°WGlenwood — 46.00°N, 94.00°WGlenwood — 42.00°N, 90.50°WDecorah Shale — 46.00°N, 94.00°WDecorah Shale — 44.50°N, 92.90°WIon — 42.00°N, 90.50°WSt. Peter Sandstone — 46.00°N, 94.00°WPlatteville — 46.00°N, 94.00°WCummingsville — 46.00°N, 94.00°WPecatonica — 42.00°N, 90.50°WMifflin — 42.00°N, 90.50°WSpechts Ferry — 42.00°N, 90.50°WGuttenberg — 42.00°N, 90.50°WChaumont — 45.88°N, 76.93°WBobcaygeon — 45.88°N, 76.93°WMcGregor — 42.51°N, 89.03°WQuimbys Mill — 41.85°N, 89.48°W

Loading coastlines…

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

Gyronema semicarinatum and its relatives

Ordovician

Where Gyronema semicarinatum and its relatives were recorded in the Ordovician.

Found in the same rock

197 taxa

The Paleobiology Database records 20 sites for Gyronema semicarinatum, 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

3 references

Each of the 20 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 Gyronema semicarinatum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Gyronema semicarinatum, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itGyronema through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Salter 1859)