Psilophytopsida

Psilophytopsida is a now obsolete class containing one order, Psilophytales, which was previously used to classify a number of extinct plants which are now placed elsewhere. The class was established in 1917, under the name Psilophyta, with only three genera for a group of fossil plants from the Upper Silurian and Devonian periods which lack true roots and leaves, but have a vascular system within a branching cylindrical stem. The living Psilotaceae, the whisk-ferns, were sometimes added to the class, which was then usually called Psilopsida. This classification is no longer in use.

No picture of Psilophytopsida was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Psilophytopsida, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PsilophytophytaPBDB
Diet
"photoautotroph"PBDB, for Streptophyta

Time the record covers

At least 113 million years on record.

The record covers at least 426.7 Mya to 312.8 Mya. No occurrence read is dated outside 443.1 Mya to 306 Mya.

Ordovician — about 0 of 272 occurrencesSilurian — about 48 of 272 occurrencesSilurianDevonian — about 216 of 272 occurrencesDevonianCarboniferous — about 8 of 272 occurrencesCarboniferous446–441 Mya — about 0.5 occurrences441–436 Mya — about 1 occurrence436–432 Mya — about 1 occurrence432–427 Mya — about 5 occurrences427–422 Mya — about 16 occurrences422–417 Mya — about 35 occurrences417–413 Mya — about 27 occurrences413–408 Mya — about 40 occurrences408–403 Mya — about 20 occurrences403–398 Mya — about 20 occurrences398–394 Mya — about 20 occurrences394–389 Mya — about 14 occurrences389–384 Mya — about 35 occurrences384–379 Mya — about 12 occurrences379–375 Mya — about 5 occurrences375–370 Mya — about 4 occurrences370–365 Mya — about 3 occurrences365–360 Mya — about 3 occurrences360–356 Mya — about 0.9 occurrences356–351 Mya — about 0.1 occurrences351–346 Mya — about 0.3 occurrences346–341 Mya — about 1 occurrence341–337 Mya — about 1 occurrence337–332 Mya — about 1 occurrence332–327 Mya — about 0.5 occurrences327–322 Mya — about 0.1 occurrences322–318 Mya — about 1 occurrence318–313 Mya — about 0.7 occurrences313–308 Mya — about 0.7 occurrences308–303 Mya — about 0.3 occurrences426.7 Mya312.8 Mya446 Mya303 Mya

272 occurrences of Psilophytopsida 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

272 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

80 formations

Gres (et schists) de Wepion — 50.67°N, 4.13°EGres (et schists) de Wepion — 50.55°N, 4.47°EGres (et schists) de Wepion — 50.78°N, 5.45°EGres (et schists) de Wepion — 50.00°N, 5.00°EBattery Point — 48.77°N, 64.38°WBattery Point — 48.83°N, 64.30°WBattery Point — 48.82°N, 64.47°WBathurst Island — 75.80°N, 98.43°WBathurst Island — 75.00°N, 98.00°WBathurst Island — 76.19°N, 98.23°WBathurst Island — 76.00°N, 98.00°WBathurst Island — 75.84°N, 98.62°WKacak Schichten — 49.02°N, 15.90°EKacak Schichten — 49.97°N, 14.17°EKacak Schichten — 50.03°N, 14.70°EKacak Schichten — 50.00°N, 14.27°EKacak Schichten — 50.00°N, 15.00°EKacak Schichten — 49.72°N, 16.05°EKacak Schichten — 50.00°N, 14.00°ECampbellton — 48.00°N, 66.00°WCampbellton — 48.02°N, 66.47°WCampbellton — 48.07°N, 66.38°WCampbellton — 48.03°N, 66.42°WBathurst Island beds — 75.80°N, 98.40°WLipeon — 21.38°S, 64.65°WLipeon — 21.89°S, 64.71°WRoblin Schichten — 49.00°N, 16.08°ERoblin Schichten — 50.05°N, 14.67°ERoblin Schichten — 50.00°N, 14.83°ERoblin Schichten — 50.00°N, 13.50°ERoblin Schichten — 49.02°N, 15.90°ETrout Valley — 46.00°N, 69.00°WTrout Valley — 46.10°N, 68.55°WGrès de Wepion — 50.50°N, 5.67°EGrès de Wepion — 50.42°N, 4.87°EGrès de Wepion — 50.00°N, 5.00°EBeartooth Butte — 44.95°N, 109.62°WBeartooth Butte — 44.87°N, 108.07°WSrbsko-Schichten — 50.00°N, 14.50°EHollyford — 52.85°N, 7.92°WSt. Maughans — 52.00°N, 2.00°WPozary — 49.90°N, 14.02°EPozary — 49.95°N, 12.93°EPozary — 49.52°N, 13.50°ELerbekk — 62.58°N, 11.33°EGrès d'Acoz/Grès de Wepion — 50.92°N, 5.03°EOneonta — 42.38°N, 74.45°WOneonta — 42.38°N, 74.27°WOneonta — 42.28°N, 74.41°WBois de Bordeaux — 50.60°N, 4.22°ERashkovskie Beds — 48.52°N, 26.32°EWhitcliffe — 51.00°N, 3.00°WWilsonia Shales — 52.00°N, 3.00°WFurnas — 23.25°S, 49.67°WFurnas — 24.25°S, 49.70°WBurnotien — 50.58°N, 4.08°EBurnotien — 50.55°N, 5.68°E

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The named rock units Psilophytopsida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 56 further formations hold fewer occurrences each and are not listed. 43 occurrences have no formation on record, which is common for older literature.

Psilophytopsida and its relatives

Devonian

Where Psilophytopsida and its relatives were recorded in the Devonian.

Found in the same rock

772 taxa

The Paleobiology Database records 140 sites for Psilophytopsida, 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

102 references

Each of the 272 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. 90 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 Psilophytopsida was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Psilophytopsida, or no answer at all. This entry cannot say which.

No 3D scan of Psilophytopsida 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.

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 itPsilophytophyta through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kidston and Lang 1917