Archegonus

Searched as Cylindraspis. The Paleobiology Database treats Archegonus as the accepted name.

No picture of Archegonus was found. iDigBio was searched and had none. Wikipedia and Wikidata have a picture filed under this name, but nothing tied it to Archegonus itself, so it was not used. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Archegonus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ArchegoninaePBDB
Diet
deposit feederPBDB, for Proetida
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Phillipsiidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 353 million years on record.

The record covers at least 353.7 Mya to 11.7 ka. No occurrence read is dated outside 358.86 Mya to 0 Mya.

Devonian — about 0 of 57 occurrencesCarboniferous — about 51 of 57 occurrencesCarboniferousPermian — about 0 of 57 occurrencesEarly Triassic — about 0 of 57 occurrencesMiddle Triassic — about 0 of 57 occurrencesLate Triassic — about 0 of 57 occurrencesEarly Jurassic — about 0 of 57 occurrencesMiddle Jurassic — about 0 of 57 occurrencesLate Jurassic — about 0 of 57 occurrencesEarly Cretaceous — about 0 of 57 occurrencesLate Cretaceous — about 0 of 57 occurrencesPaleocene — about 0 of 57 occurrencesEocene — about 0 of 57 occurrencesOligocene — about 0 of 57 occurrencesMiocene — about 0 of 57 occurrencesPliocene — about 0 of 57 occurrencesPleistocene — about 0 of 57 occurrences366–354 Mya — about 8 occurrences354–342 Mya — about 33 occurrences342–329 Mya — about 10 occurrences12–0 Mya — about 6 occurrences353.7 Mya11.7 ka366 Mya0 Mya

57 occurrences of Archegonus on record, most of them in the Carboniferous. 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

57 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

22 formations

Myslejovice — 49.27°N, 17.00°EWangyou — 24.45°N, 108.30°EWangyou — 25.73°N, 106.52°EHillershausen — 51.26°N, 7.08°EHillershausen — 51.49°N, 8.48°EChappel Limestone — 31.17°N, 98.98°WChappel Limestone — 31.00°N, 98.10°WChappel Limestone — 31.20°N, 98.72°WLeffe — 50.45°N, 5.28°EErdbach Limestone — 51.28°N, 6.83°EErdbach Limestone — 51.82°N, 10.22°EErdbach Limestone — 50.67°N, 8.20°ELake Valley — 32.87°N, 105.82°WLake Valley — 32.83°N, 105.83°WVegamian — 42.95°N, 5.50°WVegamian — 42.97°N, 5.40°WBlackwater Limestone — 54.42°N, 6.73°WPal Grande — 47.00°N, 13.00°EPal Grande — 46.67°N, 12.98°EBromberg — 50.68°N, 8.32°EBromberg — 51.27°N, 7.18°ESzczawno — 50.78°N, 16.26°EWelden Limestone — 34.77°N, 96.68°WChouteau — 37.46°N, 89.25°WBorden — 38.50°N, 85.92°WGrainger — 36.42°N, 84.31°WPilton Shales — 51.08°N, 4.05°WErdbacher — 49.25°N, 9.78°EBrezina — 49.22°N, 16.75°EErdbach — 51.41°N, 8.68°EWhiteway Mudstone — 50.62°N, 4.20°WLodgepole — 45.10°N, 110.79°W

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The named rock units Archegonus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Archegonus and its relatives

Carboniferous

Where Archegonus and its relatives were recorded in the Carboniferous.

Found in the same rock

276 taxa

The Paleobiology Database records 42 sites for Archegonus, 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

27 references

Each of the 57 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. 15 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 content0

No picture of Archegonus was found. iDigBio was searched and had none.

Wikipedia and Wikidata have a picture filed under this name, but nothing tied it to Archegonus itself, so it was not used.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Archegonus, or no answer at all. This entry cannot say which.

No 3D scan of Archegonus 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 itArchegoninae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sandberger 1850