Ampyx

Ampyx is an Ordovician-Silurian genus of Asaphid trilobites of the family Raphiophoridae. Species of Ampyx are characterized by three extended spines on the head-shield, one spine derived from each free cheek, and one spine emanating from the glabellum. Species include Ampyx linleyensis.

A picture published with the record for Ampyx.

Rama · CC BY-SA 3.0 · 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
RaphiophorinaePBDB
Diet
suspension feederPBDB, for Raphiophoridae
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
blindPBDB, for Raphiophoridae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 54 million years on record.

The record covers at least 477.1 Mya to 422.7 Mya. No occurrence read is dated outside 486.85 Mya to 419.62 Mya.

Cambrian — about 0 of 242 occurrencesOrdovician — about 240 of 242 occurrencesOrdovicianSilurian — about 2 of 242 occurrencesSilurianDevonian — about 0 of 242 occurrences488–486 Mya — about 0.5 occurrences486–484 Mya — about 1 occurrence484–481 Mya — about 2 occurrences481–479 Mya — about 2 occurrences479–477 Mya — about 6 occurrences477–474 Mya — about 23 occurrences474–472 Mya — about 28 occurrences472–470 Mya — about 28 occurrences470–467 Mya — about 20 occurrences467–465 Mya — about 15 occurrences465–463 Mya — about 8 occurrences463–460 Mya — about 10 occurrences460–458 Mya — about 19 occurrences458–456 Mya — about 28 occurrences456–453 Mya — about 17 occurrences453–451 Mya — about 12 occurrences451–449 Mya — about 11 occurrences449–446 Mya — about 6 occurrences446–444 Mya — about 4 occurrences444–442 Mya — about 0.5 occurrences442–439 Mya — about 0.7 occurrences439–437 Mya — about 0.3 occurrences423–421 Mya — about 0.7 occurrences421–418 Mya — about 0.3 occurrences477.1 Mya422.7 Mya488 Mya418 Mya

242 occurrences of Ampyx 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

242 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

98 formations

Edinburg — 38.00°N, 79.00°WEdinburg — 38.99°N, 78.36°WEdinburg — 38.99°N, 78.35°WEdinburg — 38.84°N, 78.55°WEdinburg — 38.56°N, 78.86°WEdinburg — 36.88°N, 81.68°WEdinburg — 37.74°N, 79.51°WHolen — 57.37°N, 17.08°EHolen — 57.32°N, 17.00°EHolen — 57.15°N, 16.92°EHolen — 57.03°N, 16.88°EHolen — 57.00°N, 16.82°EHolen — 57.17°N, 16.94°EHolen — 56.62°N, 16.56°EUpper Fezouata — 31.42°N, 5.75°WUpper Fezouata — 27.88°N, 11.42°WUpper Fezouata — 31.38°N, 4.17°WUpper Fezouata — 30.42°N, 5.82°WUpper Fezouata — 30.55°N, 5.68°WUpper Fezouata — 27.82°N, 11.40°WUpper Fezouata — 30.40°N, 5.71°WUpper Fezouata — 30.49°N, 5.88°WCampile — 53.45°N, 7.17°WCampile — 53.42°N, 7.17°WValhallfonna — 79.00°N, 18.00°EValhallfonna — 79.80°N, 17.76°EBalclatchie — 55.24°N, 4.78°WBalclatchie — 55.31°N, 4.80°WNinemile — 39.20°N, 116.44°WNinemile — 37.00°N, 116.00°WNinemile — 36.65°N, 116.17°WAntelope Valley — 36.39°N, 116.61°WAntelope Valley — 37.12°N, 116.50°WEmanuel — 18.65°S, 125.92°ERaheen — 52.21°N, 6.98°WLatorp — 58.00°N, 14.00°ELatorp — 59.24°N, 14.94°ELlanfallteg — 52.00°N, 5.00°WLlanfallteg — 51.83°N, 4.65°WLlanfallteg — 51.85°N, 4.92°WDawan — 33.00°N, 111.00°EDawan — 32.00°N, 108.00°EDawan — 30.90°N, 111.39°EMiaopo — 33.00°N, 111.00°EMiaopo — 32.00°N, 108.00°ESan Juan — 30.00°S, 69.00°WSan Juan — 31.00°S, 69.00°WKnockerk — 53.75°N, 6.55°WArdwell Farm — 55.25°N, 4.85°WArdwell Farm — 55.18°N, 4.82°WCouches du Foulon — 43.47°N, 3.05°EFezouata — 30.50°N, 6.11°WFezouata — 30.54°N, 5.94°WFezouata — 30.18°N, 8.23°WBarrel Spring — 36.90°N, 118.06°WBarrel Spring — 37.00°N, 118.00°WDalby — 57.00°N, 17.00°EDalby — 61.00°N, 15.00°EAcoite — 24.00°S, 66.00°WSepulturas — 22.92°S, 65.62°WSepulturas — 23.92°S, 65.60°WSuri — 29.00°S, 68.00°WSuri — 28.00°S, 68.00°W

Loading coastlines…

The named rock units Ampyx has been recovered from, largest first. Drawn where the rock is now, not where it formed. 74 further formations hold fewer occurrences each and are not listed. 43 occurrences have no formation on record, which is common for older literature.

Ampyx and its relatives

Ordovician

Where Ampyx and its relatives were recorded in the Ordovician.

Found in the same rock

1,601 taxa

The Paleobiology Database records 235 sites for Ampyx, 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

100 references

Each of the 242 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. 88 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 Ampyx

Credit
Rama
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

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

This entry was cached before the site began recording what Smithsonian Open Access and MorphoSource did, so a search that failed cannot be told from one that found nothing.

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 itRaphiophorinae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Dalman 1827)