Spyroceras

Spyroceras

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
SpyroceratidaePBDB
Diet
carnivorePBDB, for Cephalopoda
Life habit
nektonicPBDB, for Cephalopoda
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 93 million years on record.

The record covers at least 458.2 Mya to 365.2 Mya. No occurrence read is dated outside 471.3 Mya to 358.86 Mya.

Ordovician — about 85 of 184 occurrencesOrdovicianSilurian — about 12 of 184 occurrencesSilurianDevonian — about 87 of 184 occurrencesDevonianCarboniferous — about 0 of 184 occurrences474–470 Mya — about 0.8 occurrences470–466 Mya — about 2 occurrences466–462 Mya — about 2 occurrences462–458 Mya — about 2 occurrences458–454 Mya — about 15 occurrences454–450 Mya — about 19 occurrences450–446 Mya — about 34 occurrences446–442 Mya — about 11 occurrences442–438 Mya — about 0.2 occurrences438–435 Mya — about 0.2 occurrences435–431 Mya — about 0.8 occurrences431–427 Mya — about 1 occurrence427–423 Mya — about 2 occurrences423–419 Mya — about 7 occurrences415–411 Mya — about 12 occurrences411–407 Mya — about 6 occurrences407–403 Mya — about 2 occurrences403–399 Mya — about 2 occurrences399–396 Mya — about 0.4 occurrences396–392 Mya — about 1 occurrence392–388 Mya — about 4 occurrences388–384 Mya — about 41 occurrences384–380 Mya — about 17 occurrences368–364 Mya — about 0.1 occurrences364–361 Mya — about 0.6 occurrences361–357 Mya — about 0.3 occurrences458.2 Mya365.2 Mya474 Mya357 Mya

184 occurrences of Spyroceras 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

184 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

62 formations

Moscow — 42.83°N, 75.78°WMoscow — 42.67°N, 76.73°WMoscow — 42.82°N, 76.34°WMoscow — 42.79°N, 76.15°WMoscow — 42.77°N, 76.03°WMoscow — 42.81°N, 75.91°WMoscow — 42.59°N, 75.18°WMoscow — 42.75°N, 77.15°WMoscow — 42.78°N, 77.33°WMoscow — 42.67°N, 76.95°WLudlowville — 42.80°N, 78.85°WLudlowville — 42.85°N, 78.64°WLudlowville — 42.83°N, 77.84°WLudlowville — 42.80°N, 77.27°WLudlowville — 42.78°N, 76.99°WLudlowville — 42.85°N, 78.37°WLudlowville — 43.00°N, 79.00°WLudlowville — 42.87°N, 75.71°WMahantango — 40.50°N, 77.25°WMahantango — 40.05°N, 77.52°WMahantango — 40.33°N, 76.92°WMahantango — 40.42°N, 77.17°WMahantango — 40.42°N, 77.00°WWhitby — 45.50°N, 81.00°WWhitby — 43.87°N, 79.03°WWhitby — 43.80°N, 79.12°WWhitby — 43.87°N, 78.93°WWhitby — 44.53°N, 80.38°WKess-Kess — 30.95°N, 4.05°WBønsnes — 66.77°N, 13.47°EBønsnes — 60.06°N, 10.21°EBønsnes — 60.14°N, 10.30°EGeneseo — 42.65°N, 75.43°WGeneseo — 42.64°N, 75.43°WGeneseo — 42.56°N, 75.34°WGeneseo — 45.65°N, 75.39°WPraha — 50.03°N, 14.38°EPraha — 49.92°N, 14.07°EFremont — 38.00°N, 105.00°WFremont — 38.50°N, 105.17°WGeorgian Bay — 45.75°N, 81.67°WGeorgian Bay — 43.67°N, 79.42°WGeorgian Bay — 45.75°N, 81.60°WPlatteville — 45.00°N, 93.00°WMifflin — 43.00°N, 91.00°WLyckholm — 59.00°N, 25.00°ELyckholm — 59.05°N, 24.03°EBeyrichienkalk — 57.00°N, 19.00°ERead Bay — 74.70°N, 94.82°WMaquoketa — 43.61°N, 92.43°WMaquoketa — 43.00°N, 92.00°WHermitage — 35.50°N, 86.50°WGlenwood — 45.00°N, 93.00°WNachusa — 43.00°N, 91.00°WQuimbys Mill — 43.00°N, 91.00°WSpechts Ferry — 43.00°N, 91.00°WVaureal — 49.00°N, 64.00°WVaureal — 49.75°N, 63.50°WBig Hill — 45.83°N, 86.95°WGrande Coupe — 48.53°N, 64.25°W

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The named rock units Spyroceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 further formations hold fewer occurrences each and are not listed. 24 occurrences have no formation on record, which is common for older literature.

Spyroceras and its relatives

Devonian

Where Spyroceras and its relatives were recorded in the Devonian.

Found in the same rock

1,431 taxa

The Paleobiology Database records 128 sites for Spyroceras, 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

56 references

Each of the 184 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. 44 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 content2

Picture of Spyroceras

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

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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 itSpyroceratidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1884