Hedstroemia

No picture of Hedstroemia was found. iDigBio and Smithsonian Open Access were searched and had none. Wikidata has a picture filed under this name, but nothing tied it to Hedstroemia itself, so it was not used. Wikipedia 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 Hedstroemia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
GarwoodioideaePBDB
Diet
"photoautotroph"PBDB, for Bryopsidales
Life habit
epifaunalPBDB, for Bryopsidales
Motility
stationaryPBDB, for Bryopsidales
Environment
lagoonal,coastal,inner shelf,marine,brackish,freshwaterPBDB, for Chlorophyta

Time the record covers

At least 314 million years on record.

The record covers at least 525.5 Mya to 211.18 Mya. No occurrence read is dated outside 538.8 Mya to 205.7 Mya.

Cambrian — about 3 of 48 occurrencesCambrianOrdovician — about 10 of 48 occurrencesOrdovicianSilurian — about 20 of 48 occurrencesDevonian — about 9 of 48 occurrencesDevonianCarboniferous — about 0 of 48 occurrencesPermian — about 1 of 48 occurrencesPermianEarly Triassic — about 0 of 48 occurrencesMiddle Triassic — about 1 of 48 occurrencesLate Triassic — about 4 of 48 occurrencesLate TriassicEarly Jurassic — about 0 of 48 occurrences545–534 Mya — about 0.4 occurrences534–522 Mya — about 0.6 occurrences522–511 Mya — about 2 occurrences476–465 Mya — about 0.8 occurrences465–453 Mya — about 4 occurrences453–442 Mya — about 7 occurrences442–430 Mya — about 7 occurrences430–418 Mya — about 11 occurrences418–407 Mya — about 2 occurrences407–395 Mya — about 2 occurrences395–384 Mya — about 3 occurrences384–372 Mya — about 1 occurrence372–361 Mya — about 0.0 occurrences268–257 Mya — about 1 occurrence245–234 Mya — about 2 occurrences234–222 Mya — about 2 occurrences222–211 Mya — about 0.6 occurrences211–199 Mya — about 1 occurrence525.5 Mya211.18 Mya545 Mya199 Mya

48 occurrences of Hedstroemia on record, most of them in the Silurian. 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

48 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

27 formations

Road River — 65.00°N, 136.00°WRoad River — 65.28°N, 135.70°WZhusileng — 41.63°N, 102.63°EZhusileng — 41.62°N, 102.65°EHeceta — 55.78°N, 133.17°WTable Point — 48.55°N, 58.92°WTable Point — 50.70°N, 57.38°WSekwi — 63.73°N, 129.05°WLianglitag — 39.25°N, 84.67°EFukata — 33.53°N, 133.22°EYikewsusu — 41.63°N, 102.63°EYikewsusu — 41.62°N, 102.75°EHalla Beds — 57.53°N, 18.43°ELilla Karlso Limestone — 57.63°N, 18.30°ERecoaro - Upper Serla — 46.75°N, 11.97°ECapitan — 32.19°N, 104.36°WMosalem — 42.25°N, 90.42°WSteinvika Limestone — 60.00°N, 11.00°EAttawapiskat — 52.85°N, 83.90°WHogklint — 57.72°N, 18.40°ETofta — 57.65°N, 18.30°ECarters Limestone — 35.02°N, 86.93°WSanjushan — 28.70°N, 118.35°ESukharikha — 67.22°N, 87.03°EJabal Wasa — 24.73°N, 55.87°EGuilin — 25.07°N, 110.13°EDachstein — 48.00°N, 16.42°EDushan — 25.83°N, 107.57°E

Loading coastlines…

The named rock units Hedstroemia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 further formations hold fewer occurrences each and are not listed. 10 occurrences have no formation on record, which is common for older literature.

Hedstroemia and its relatives

Silurian

Where Hedstroemia and its relatives were recorded in the Silurian.

Found in the same rock

450 taxa

The Paleobiology Database records 32 sites for Hedstroemia, 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

35 references

Each of the 48 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. 23 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 Hedstroemia was found. iDigBio and Smithsonian Open Access were searched and had none.

Wikidata has a picture filed under this name, but nothing tied it to Hedstroemia itself, so it was not used.

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

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itGarwoodioideae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rothpletz 1913