Eucommiidites

Eucommiidites is an angiosperm look-alike pollen type from the Mesozoic Era. When it was first described in Sweden, it was thought to represent pollen from the earliest angiosperms. However, it was subsequently shown, due to morphology, that it could not be angiospermous. Later, Eucommidites pollen was discovered in the pollen chambers of fossil gymnosperm seeds. It was later shown to be the pollen of the extinct gymnosperm order Erdtmanithecales, suggested to have close affinities with Bennettitales and Gnetales.

No picture of Eucommiidites was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Eucommiidites, or no answer at all. This entry cannot say which.

On record

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

Time the record covers

At least 181 million years on record.

The record covers at least 237 Mya to 56 Mya. No occurrence read is dated outside 241.464 Mya to 33.9 Mya.

Middle Triassic — about 5 of 144 occurrencesLate Triassic — about 0 of 144 occurrencesEarly Jurassic — about 0 of 144 occurrencesMiddle Jurassic — about 6 of 144 occurrencesLate Jurassic — about 1 of 144 occurrencesLate JurassicEarly Cretaceous — about 72 of 144 occurrencesEarly CretaceousLate Cretaceous — about 57 of 144 occurrencesLate CretaceousPaleocene — about 1 of 144 occurrencesEocene — about 2 of 144 occurrencesEoceneOligocene — about 0 of 144 occurrences246–238 Mya — about 3 occurrences238–231 Mya — about 2 occurrences181–174 Mya — about 0.0 occurrences174–166 Mya — about 3 occurrences166–159 Mya — about 3 occurrences159–152 Mya — about 0.8 occurrences152–145 Mya — about 0.1 occurrences145–138 Mya — about 0.5 occurrences138–130 Mya — about 2 occurrences130–123 Mya — about 8 occurrences123–116 Mya — about 11 occurrences116–109 Mya — about 22 occurrences109–102 Mya — about 24 occurrences102–95 Mya — about 50 occurrences95–87 Mya — about 6 occurrences73–66 Mya — about 4 occurrences66–59 Mya — about 0.9 occurrences59–51 Mya — about 0.4 occurrences51–44 Mya — about 0.7 occurrences44–37 Mya — about 0.7 occurrences37–30 Mya — about 0.3 occurrences237 Mya56 Mya246 Mya30 Mya

144 occurrences of Eucommiidites on record, most of them in the Early Cretaceous. 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

144 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

Agua Doce — 3.69°S, 44.56°WTalme Yafe — 31.65°N, 34.61°EBurg El-Arab — 30.99°N, 27.77°EOcal — 2.62°N, 75.53°WQueimadas — 3.69°S, 44.56°WPreguicas — 3.69°S, 44.56°WEze-Aku — 8.00°N, 11.00°ESaharonim — 31.67°N, 34.83°ESaharonim — 31.60°N, 34.70°ECaballos — 2.62°N, 75.53°WSix Hills — 25.50°N, 29.25°EKharita — 29.00°N, 29.00°EBahariya — 30.99°N, 27.77°EBahariya — 29.00°N, 29.00°EAbu Roash — 30.99°N, 27.77°EAbu Roash — 29.00°N, 29.00°EHell Creek — 46.32°N, 103.85°WHell Creek — 46.02°N, 103.76°WMasajid — 30.99°N, 27.77°EAlamein — 29.00°N, 29.00°EFort Union — 46.35°N, 103.87°WCalcaires à Stipites — 44.18°N, 3.22°EPatuxent — 37.42°N, 77.42°WWeald Clay — 51.13°N, 0.35°WOriente — 7.00°S, 75.00°WArundel Clay — 39.07°N, 76.87°W

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The named rock units Eucommiidites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 57 occurrences have no formation on record, which is common for older literature.

Eucommiidites and its relatives

Early Cretaceous

Where Eucommiidites and its relatives were recorded in the Early Cretaceous.

Found in the same rock

688 taxa

The Paleobiology Database records 141 sites for Eucommiidites, 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

26 references

Each of the 144 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. 14 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 Eucommiidites was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

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

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

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 itCycadales through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Erdtman 1948