Trochonematidae

Trochonematidae is an extinct taxonomic family of fossil sea snails, marine gastropod molluscs in the superfamily Trochonematoidea.

Trochonematidae

RealGatba · CC BY-SA 4.0 · 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
TrochonematoideaPBDB
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 305 million years on record.

The record covers at least 470.3 Mya to 165.3 Mya. No occurrence read is dated outside 471.3 Mya to 161.5 Mya.

Ordovician — about 293 of 349 occurrencesOrdovicianSilurian — about 29 of 349 occurrencesDevonian — about 3 of 349 occurrencesDevonianCarboniferous — about 0 of 349 occurrencesPermian — about 3 of 349 occurrencesPermianEarly Triassic — about 0 of 349 occurrencesMiddle Triassic — about 2 of 349 occurrencesLate Triassic — about 15 of 349 occurrencesLate TriassicEarly Jurassic — about 1 of 349 occurrencesEarly JurassicMiddle Jurassic — about 3 of 349 occurrencesLate Jurassic — about 0 of 349 occurrences477–467 Mya — about 6 occurrences467–456 Mya — about 47 occurrences456–445 Mya — about 221 occurrences445–435 Mya — about 26 occurrences435–424 Mya — about 19 occurrences424–413 Mya — about 3 occurrences413–402 Mya — about 0.5 occurrences402–392 Mya — about 0.7 occurrences392–381 Mya — about 1.0 occurrences381–370 Mya — about 0.9 occurrences306–295 Mya — about 0.9 occurrences295–284 Mya — about 1 occurrence273–263 Mya — about 0.4 occurrences263–252 Mya — about 0.6 occurrences241–230 Mya — about 2 occurrences230–220 Mya — about 1 occurrence220–209 Mya — about 2 occurrences209–198 Mya — about 12 occurrences198–188 Mya — about 0.6 occurrences188–177 Mya — about 0.4 occurrences166–155 Mya — about 3 occurrences470.3 Mya165.3 Mya477 Mya155 Mya

349 occurrences of Trochonematidae 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

349 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

107 formations

Dunleith — 42.02°N, 93.45°WDunleith — 42.00°N, 90.50°WPort Clarence Limestone — 65.50°N, 165.92°WPort Clarence Limestone — 65.49°N, 166.94°WBad Cache Rapids — 66.92°N, 84.00°WBad Cache Rapids — 66.92°N, 83.92°WBad Cache Rapids — 66.78°N, 83.90°WBad Cache Rapids — 68.71°N, 81.94°WBad Cache Rapids — 69.00°N, 81.67°WBad Cache Rapids — 69.23°N, 82.48°WBad Cache Rapids — 68.34°N, 82.37°WBad Cache Rapids — 68.38°N, 82.31°WBad Cache Rapids — 69.23°N, 82.25°WGlenwood — 46.00°N, 94.00°WGlenwood — 42.00°N, 90.50°WCliffield — 37.15°N, 81.49°WCliffield — 37.13°N, 81.41°WCliffield — 37.08°N, 81.33°WCliffield — 37.17°N, 81.48°WCliffield — 37.08°N, 81.71°WCummingsville — 44.50°N, 92.90°WCummingsville — 46.00°N, 94.00°WKopanina — 49.96°N, 14.18°EKopanina — 49.96°N, 14.10°EKopanina — 49.93°N, 14.05°EPlatteville — 46.00°N, 94.00°WPlatteville — 43.30°N, 91.78°WPlatteville — 42.51°N, 89.03°WWise Lake — 42.00°N, 90.50°WVerulam — 44.45°N, 78.70°WVerulam — 44.43°N, 78.78°WVerulam — 44.48°N, 78.95°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°WProsser Limestone — 46.00°N, 94.00°WStewartville — 46.00°N, 94.00°WCrown Point — 44.58°N, 73.53°WCrown Point — 44.63°N, 73.43°WCrown Point — 44.94°N, 73.45°WSt. Peter Sandstone — 46.00°N, 94.00°WPecatonica — 42.00°N, 90.50°WMifflin — 42.00°N, 90.50°WAmadjuak — 63.72°N, 68.97°WAmadjuak — 65.25°N, 73.17°WAmadjuak — 68.80°N, 81.24°WAmadjuak — 63.75°N, 68.95°WMcGregor — 42.73°N, 90.48°WMcGregor — 42.51°N, 89.03°WMcGregor — 42.00°N, 89.39°WMcGregor — 40.78°N, 87.39°WPortage Chute — 58.00°N, 95.00°WPortage Chute — 56.50°N, 94.25°WPortage Chute — 58.50°N, 95.00°WChasm Creek — 58.17°N, 94.67°WChasm Creek — 58.13°N, 94.77°WChasm Creek — 58.25°N, 94.57°WIon — 42.00°N, 90.50°WBobcaygeon — 44.67°N, 78.80°WBobcaygeon — 44.53°N, 78.55°WBobcaygeon — 45.88°N, 76.93°WBobcaygeon — 45.54°N, 75.29°WChaumont — 45.45°N, 76.69°WChaumont — 45.88°N, 76.93°WChaumont — 45.33°N, 75.72°W

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The named rock units Trochonematidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 83 further formations hold fewer occurrences each and are not listed. 36 occurrences have no formation on record, which is common for older literature.

Trochonematidae and its relatives

Ordovician

Where Trochonematidae and its relatives were recorded in the Ordovician.

Found in the same rock

2,664 taxa

The Paleobiology Database records 230 sites for Trochonematidae, 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

88 references

Each of the 349 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. 76 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 Trochonematidae

Credit
RealGatba
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Trochonematidae was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itTrochonematoidea through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. von Zittel 1895