Eunema

Eunema

via iDigBio · CC0 · via iDigBio. 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
GyronematinaePBDB
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 least 220 million years on record.

The record covers at least 457.3 Mya to 237 Mya. No occurrence read is dated outside 471.3 Mya to 233.6 Mya.

Ordovician — about 97 of 114 occurrencesOrdovicianSilurian — about 7 of 114 occurrencesSilurianDevonian — about 4 of 114 occurrencesDevonianCarboniferous — about 0 of 114 occurrencesPermian — about 0 of 114 occurrencesEarly Triassic — about 0 of 114 occurrencesMiddle Triassic — about 0 of 114 occurrencesLate Triassic — about 6 of 114 occurrences476–468 Mya — about 0.2 occurrences468–460 Mya — about 0.6 occurrences460–451 Mya — about 65 occurrences451–443 Mya — about 32 occurrences443–435 Mya — about 1 occurrence435–427 Mya — about 3 occurrences427–418 Mya — about 3 occurrences418–410 Mya — about 0.0 occurrences410–402 Mya — about 0.5 occurrences402–394 Mya — about 0.5 occurrences394–385 Mya — about 1 occurrence385–377 Mya — about 2 occurrences237–229 Mya — about 6 occurrences457.3 Mya237 Mya476 Mya229 Mya

114 occurrences of Eunema 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

114 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

49 formations

Dunleith — 42.00°N, 90.50°WChaumont — 45.88°N, 76.93°WChaumont — 45.52°N, 73.58°WChaumont — 45.41°N, 75.73°WChaumont — 45.62°N, 74.69°WChaumont — 45.33°N, 75.72°WCassian — 46.68°N, 12.15°ECassian — 46.57°N, 11.94°ECassian — 46.63°N, 12.21°ECassian — 46.59°N, 12.26°ESt. Peter Sandstone — 44.92°N, 93.02°WSt. Peter Sandstone — 43.73°N, 92.13°WSt. Peter Sandstone — 46.00°N, 94.00°WSt. Peter Sandstone — 42.00°N, 90.50°WPlatteville — 46.00°N, 94.00°WPlatteville — 42.51°N, 89.03°WQuimbys Mill — 42.00°N, 90.50°WQuimbys Mill — 44.98°N, 93.27°WIon — 42.00°N, 90.50°WRacine — 42.73°N, 87.78°WRacine — 43.05°N, 88.01°WDecorah Shale — 46.00°N, 94.00°WProsser Limestone — 46.00°N, 94.00°WSpechts Ferry — 42.00°N, 90.50°WScales Shale — 42.00°N, 90.50°WScales Shale — 43.02°N, 91.73°WBobcaygeon — 45.88°N, 76.93°WMcGregor — 42.00°N, 89.39°WMcGregor — 40.78°N, 87.39°WMurfreesboro Limestone — 35.50°N, 86.50°WStewartville — 46.00°N, 94.00°WDubuque — 46.00°N, 94.00°WDubuque — 42.00°N, 90.50°WMaquoketa — 46.00°N, 94.00°WPecatonica — 42.00°N, 90.50°WMifflin — 42.00°N, 90.50°WGrand Detour — 42.00°N, 90.50°WNachusa — 42.00°N, 90.50°WGuttenberg — 42.00°N, 90.50°WWise Lake — 42.00°N, 90.50°W

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The named rock units Eunema has been recovered from, largest first. Drawn where the rock is now, not where it formed. 25 further formations hold fewer occurrences each and are not listed.

Eunema and its relatives

Ordovician

Where Eunema and its relatives were recorded in the Ordovician.

Found in the same rock

1,013 taxa

The Paleobiology Database records 79 sites for Eunema, 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

26 references

Each of the 114 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. 14 further references are not listed. 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 Eunema

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Eunema 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 itGyronematinae through timeFormations of the OrdovicianThe world it lived on

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