Paracyclas

Paracyclas

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
ParacyclidaePBDB
Diet
chemosymbioticPBDB, for Lucinoidea
Life habit
infaunalPBDB, for Lucinoidea
Motility
facultatively mobilePBDB, for Lucinoidea
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 221 million years on record.

The record covers at least 458.2 Mya to 237 Mya. No occurrence read is dated outside 469.4 Mya to 174.7 Mya.

Ordovician — about 2 of 295 occurrencesOrdovicianSilurian — about 10 of 295 occurrencesDevonian — about 280 of 295 occurrencesDevonianCarboniferous — about 2 of 295 occurrencesCarboniferousPermian — about 0 of 295 occurrencesEarly Triassic — about 0 of 295 occurrencesMiddle Triassic — about 0 of 295 occurrencesLate Triassic — about 1 of 295 occurrencesLate TriassicEarly Jurassic — about 0 of 295 occurrencesEarly JurassicMiddle Jurassic — about 0 of 295 occurrences475–465 Mya — about 0.8 occurrences465–455 Mya — about 1 occurrence434–424 Mya — about 6 occurrences424–414 Mya — about 8 occurrences414–404 Mya — about 12 occurrences404–394 Mya — about 25 occurrences394–383 Mya — about 129 occurrences383–373 Mya — about 96 occurrences373–363 Mya — about 12 occurrences363–353 Mya — about 4 occurrences353–342 Mya — about 0.5 occurrences240–230 Mya — about 0.1 occurrences230–220 Mya — about 0.2 occurrences220–210 Mya — about 0.2 occurrences210–199 Mya — about 0.2 occurrences199–189 Mya — about 0.2 occurrences189–179 Mya — about 0.2 occurrences179–169 Mya — about 0.1 occurrences458.2 Mya237 Mya475 Mya169 Mya

295 occurrences of Paracyclas on record, most of them in the Devonian. 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

295 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

72 formations

Geneseo — 42.33°N, 74.45°WGeneseo — 42.67°N, 75.59°WGeneseo — 42.61°N, 75.30°WGeneseo — 42.44°N, 74.54°WGeneseo — 42.65°N, 75.42°WGeneseo — 42.56°N, 74.85°WGeneseo — 42.62°N, 75.37°WGeneseo — 42.50°N, 75.52°WGeneseo — 42.60°N, 76.17°WGeneseo — 42.50°N, 74.78°WGeneseo — 42.61°N, 75.24°WGeneseo — 42.63°N, 75.46°WGeneseo — 42.65°N, 75.86°WGeneseo — 42.61°N, 75.55°WGeneseo — 42.51°N, 74.68°WGeneseo — 42.52°N, 75.01°WGeneseo — 42.51°N, 75.13°WGeneseo — 42.64°N, 75.77°WGeneseo — 42.53°N, 74.87°WLime Creek — 43.05°N, 92.96°WLime Creek — 42.02°N, 93.45°WLime Creek — 43.83°N, 92.93°WLime Creek — 43.05°N, 92.97°WLime Creek — 43.83°N, 93.27°WLime Creek — 43.10°N, 92.93°WSkaneateles — 42.94°N, 76.25°WSkaneateles — 42.93°N, 76.21°WSkaneateles — 42.86°N, 75.89°WSkaneateles — 42.98°N, 76.34°WSkaneateles — 42.88°N, 75.37°WSkaneateles — 42.81°N, 74.94°WSkaneateles — 42.93°N, 75.55°WSnyder Creek Shale — 38.75°N, 91.88°WSnyder Creek Shale — 38.72°N, 92.09°WSnyder Creek Shale — 38.81°N, 91.98°WSnyder Creek Shale — 38.83°N, 91.82°WSnyder Creek Shale — 38.72°N, 92.46°WSnyder Creek Shale — 38.82°N, 91.54°WSnyder Creek Shale — 42.13°N, 90.68°WDawson Bay — 51.02°N, 98.68°WDawson Bay — 51.65°N, 99.81°WDawson Bay — 53.00°N, 101.00°WDawson Bay — 52.88°N, 101.05°WDawson Bay — 52.78°N, 100.96°WDawson Bay — 52.74°N, 100.83°WDawson Bay — 52.46°N, 100.69°WDawson Bay — 52.08°N, 99.84°WShell Rock — 42.95°N, 92.83°WShell Rock — 43.15°N, 93.00°WShell Rock — 43.33°N, 92.82°WShell Rock — 43.83°N, 92.93°WShell Rock — 43.14°N, 93.00°WErtang — 24.10°N, 109.98°EErtang — 24.98°N, 109.98°EErtang — 23.60°N, 109.65°EErtang — 23.87°N, 109.77°ELudlowville — 42.86°N, 76.35°WLudlowville — 42.93°N, 76.22°WLudlowville — 42.95°N, 76.02°WLudlowville — 42.93°N, 76.00°WLudlowville — 42.86°N, 76.51°WLudlowville — 42.82°N, 75.53°WMoscow — 42.83°N, 75.78°WMoscow — 42.81°N, 75.91°WMoscow — 42.68°N, 75.57°WMoscow — 42.68°N, 75.46°WMoscow — 42.55°N, 74.50°WSilica — 41.72°N, 83.72°WMahantango — 40.50°N, 77.25°WMahantango — 40.05°N, 77.52°WMahantango — 40.42°N, 77.00°WMahantango — 39.86°N, 78.35°WMahantango — 40.47°N, 76.95°WSouris River — 53.00°N, 101.00°WSouris River — 52.60°N, 104.95°WSouris River — 52.86°N, 100.94°WTaemas — 35.00°S, 149.00°ETully — 42.53°N, 75.90°WTully — 42.56°N, 75.05°WTully — 42.54°N, 74.81°WTully — 42.55°N, 74.92°WTully — 42.56°N, 74.85°WIthaca — 42.33°N, 76.57°WIthaca — 42.67°N, 76.92°WIthaca — 42.15°N, 76.77°WMarcellus — 42.95°N, 75.68°WMarcellus — 42.95°N, 75.67°WMarcellus — 42.51°N, 74.05°WSipai — 24.98°N, 109.98°ESipai — 24.07°N, 109.88°EKartal — 40.90°N, 29.18°ECano del Oeste — 10.50°N, 72.50°WLynton Slates — 51.22°N, 3.83°WFerques — 50.83°N, 1.77°ESinelnikov — 72.00°N, 52.00°EChernaya Bay Horizon — 72.00°N, 52.00°EUpper Blaisdon Beds — 52.00°N, 2.00°W

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The named rock units Paracyclas has been recovered from, largest first. Drawn where the rock is now, not where it formed. 48 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.

Paracyclas and its relatives

Devonian

Where Paracyclas and its relatives were recorded in the Devonian.

Found in the same rock

1,166 taxa

The Paleobiology Database records 250 sites for Paracyclas, and this reads 240 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

65 references

Each of the 295 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. 53 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 Paracyclas

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

No 3D scan of Paracyclas 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.

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

Keep going

What may have been alongside itParacyclidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1843)