Trochonema umbilicata

Trochonema umbilicata

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
TrochonemaPBDB
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 8.1 million years on record.

The record covers at least 457.3 Mya to 449.2 Mya. No occurrence read is dated outside 471.3 Mya to 445.5 Mya.

Ordovician — about 61 of 61 occurrencesOrdovician472–471 Mya — about 0.1 occurrences471–470 Mya — about 0.1 occurrences470–469 Mya — about 0.1 occurrences469–468 Mya — about 0.1 occurrences468–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–463 Mya — about 0.1 occurrences463–462 Mya — about 0.1 occurrences462–461 Mya — about 0.1 occurrences461–460 Mya — about 0.1 occurrences460–459 Mya — about 0.1 occurrences459–458 Mya — about 0.1 occurrences458–458 Mya — about 0.7 occurrences458–457 Mya — about 5 occurrences457–456 Mya — about 6 occurrences456–455 Mya — about 6 occurrences455–454 Mya — about 6 occurrences454–453 Mya — about 6 occurrences453–452 Mya — about 6 occurrences452–451 Mya — about 6 occurrences451–450 Mya — about 8 occurrences450–449 Mya — about 6 occurrences449–449 Mya — about 2 occurrences449–448 Mya — about 0.8 occurrences448–447 Mya — about 0.8 occurrences447–446 Mya — about 0.8 occurrences446–445 Mya — about 0.4 occurrences457.3 Mya449.2 Mya471.8 Mya445 Mya

61 occurrences of Trochonema umbilicata 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

61 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

31 formations

Dunleith — 42.00°N, 90.50°WWitten Limestone — 37.11°N, 81.52°WWitten Limestone — 37.00°N, 81.00°WWitten Limestone — 37.02°N, 81.63°WWitten Limestone — 37.03°N, 81.79°WWitten Limestone — 37.10°N, 81.62°WVerulam — 44.45°N, 78.70°WVerulam — 44.43°N, 78.78°WVerulam — 44.48°N, 78.95°WFarr — 47.42°N, 79.60°WFarr — 47.45°N, 79.67°WBobcaygeon — 44.67°N, 78.80°WBobcaygeon — 44.53°N, 78.55°WBobcaygeon — 45.54°N, 75.29°WCummingsville — 44.50°N, 92.90°WCummingsville — 46.00°N, 94.00°WGlenwood — 46.00°N, 94.00°WGlenwood — 42.00°N, 90.50°WIon — 42.00°N, 90.50°WWise Lake — 42.00°N, 90.50°WLindsay — 45.50°N, 81.00°WLindsay — 44.58°N, 78.98°WChaumont — 45.88°N, 76.93°WChaumont — 45.33°N, 75.72°WMcGregor — 42.00°N, 89.39°WMcGregor — 40.78°N, 87.39°WLebanon Limestone — 35.50°N, 86.50°WFremont — 38.00°N, 105.00°WSt. Peter Sandstone — 46.00°N, 94.00°WPlatteville — 46.00°N, 94.00°WDecorah Shale — 46.00°N, 94.00°WProsser Limestone — 46.00°N, 94.00°WStewartville — 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°WWhitby — 43.88°N, 78.86°W

Loading coastlines…

The named rock units Trochonema umbilicata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 2 occurrences have no formation on record, which is common for older literature.

Trochonema umbilicata and its relatives

Ordovician

Where Trochonema umbilicata and its relatives were recorded in the Ordovician.

Found in the same rock

592 taxa

The Paleobiology Database records 61 sites for Trochonema umbilicata, 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

15 references

Each of the 61 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. 3 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 Trochonema umbilicata

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

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 itTrochonema through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)