Polygnathus

Polygnathus is an extinct genus of conodonts.

A picture published with the record for Polygnathus.

Uncredited · Public Domain · 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.

Time the record covers

At least 169 million years on record.

The record covers at least 410.62 Mya to 241.464 Mya. No occurrence read is dated outside 419.62 Mya to 237 Mya.

Silurian — about 0 of 3457 occurrencesDevonian — about 3317 of 3457 occurrencesDevonianCarboniferous — about 137 of 3457 occurrencesCarboniferousPermian — about 1 of 3457 occurrencesPermianEarly Triassic — about 1 of 3457 occurrencesMiddle Triassic — about 1 of 3457 occurrencesLate Triassic — about 0 of 3457 occurrences423–417 Mya — about 3 occurrences417–411 Mya — about 17 occurrences411–404 Mya — about 83 occurrences404–398 Mya — about 87 occurrences398–392 Mya — about 294 occurrences392–385 Mya — about 1011 occurrences385–379 Mya — about 773 occurrences379–373 Mya — about 513 occurrences373–366 Mya — about 355 occurrences366–360 Mya — about 153 occurrences360–354 Mya — about 84 occurrences354–347 Mya — about 47 occurrences347–341 Mya — about 18 occurrences341–335 Mya — about 4 occurrences335–328 Mya — about 2 occurrences328–322 Mya — about 2 occurrences322–316 Mya — about 4 occurrences316–309 Mya — about 1.0 occurrences309–303 Mya — about 0.9 occurrences303–297 Mya — about 0.6 occurrences297–290 Mya — about 0.1 occurrences290–284 Mya — about 0.1 occurrences284–278 Mya — about 0.1 occurrences278–271 Mya — about 0.1 occurrences271–265 Mya — about 0.1 occurrences265–259 Mya — about 0.1 occurrences259–252 Mya — about 0.1 occurrences252–246 Mya — about 1 occurrence246–240 Mya — about 0.5 occurrences240–233 Mya — about 0.6 occurrences410.62 Mya241.464 Mya423 Mya233 Mya

3,457 occurrences of Polygnathus 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

3,457 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

183 formations

Comabella — 42.33°N, 1.67°EComabella — 42.34°N, 1.07°EDelay limestone — 39.85°N, 116.27°WDelay limestone — 39.96°N, 116.22°WLime Creek — 41.12°N, 95.91°WLime Creek — 42.54°N, 94.09°WBouia — 31.38°N, 4.17°WBeul — 51.39°N, 7.87°ESheffield-Maple Mill — 41.68°N, 94.04°WSheffield-Maple Mill — 42.54°N, 94.09°WSheffield-Maple Mill — 41.12°N, 95.91°WLaoyefen — 24.45°N, 108.30°EWadleigh Limestone — 55.53°N, 133.19°WWadleigh Limestone — 55.06°N, 133.10°WWadleigh Limestone — 55.53°N, 133.15°WWuzhishan — 24.45°N, 108.30°EA — 33.86°N, 6.29°WMont Peyroux — 43.50°N, 3.09°EB — 33.86°N, 6.30°WB — 33.85°N, 6.32°WTelatyn — 50.95°N, 22.68°ETelatyn — 50.62°N, 23.48°ETelatyn — 51.76°N, 20.49°ETelatyn — 51.41°N, 23.29°EBahram — 32.90°N, 52.27°EBahram — 30.83°N, 57.03°EBahram — 33.04°N, 51.98°EBahram — 30.72°N, 57.00°EBlack Rock Limestone — 51.57°N, 4.33°WWangyou — 24.45°N, 108.30°EWangyou — 25.77°N, 106.38°EToc Tat — 22.68°N, 106.67°EToc Tat — 23.28°N, 105.38°EChinaman Creek Limestone — 19.26°S, 144.72°ELockup Well limestone — 19.30°S, 144.84°ELockup Well limestone — 19.40°S, 144.81°EDenay Limestone — 39.22°N, 116.22°WJessey Springs Limestone — 19.40°S, 144.81°EDouglas Creek Limestone — 22.90°S, 147.63°EL'Izarne — 43.57°N, 3.37°EValentin — 46.61°N, 12.88°E

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The named rock units Polygnathus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 159 further formations hold fewer occurrences each and are not listed. 1,249 occurrences have no formation on record, which is common for older literature.

Polygnathus and its relatives

Devonian

Where Polygnathus and its relatives were recorded in the Devonian.

Found in the same rock

1,101 taxa

The Paleobiology Database records 730 sites for Polygnathus, 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

146 references

Each of the 3,457 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. 134 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 Polygnathus

Credit
nobody named on the record
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

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 itFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.