Brasilichnium

Brasilichnium is the name of fossilised mammaliamorph footprints dating from the Jurassic and Cretaceous. They have been identified from Brazil and western North America.

No picture of Brasilichnium 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 Brasilichnium, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ChelichnopodidaePBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 100 million years on record.

The record covers at least 184.2 Mya to 83.6 Mya. No occurrence read is dated outside 201.4 Mya to 66 Mya.

Late Triassic — about 0 of 15 occurrencesEarly Jurassic — about 8 of 15 occurrencesEarly JurassicMiddle Jurassic — about 0 of 15 occurrencesLate Jurassic — about 1 of 15 occurrencesLate JurassicEarly Cretaceous — about 4 of 15 occurrencesEarly CretaceousLate Cretaceous — about 2 of 15 occurrencesLate CretaceousPaleocene — about 0 of 15 occurrences204–199 Mya — about 0.2 occurrences199–195 Mya — about 0.7 occurrences195–190 Mya — about 1 occurrence190–185 Mya — about 2 occurrences185–181 Mya — about 2 occurrences181–176 Mya — about 2 occurrences176–171 Mya — about 0.4 occurrences162–157 Mya — about 0.5 occurrences157–152 Mya — about 0.5 occurrences152–148 Mya — about 0.0 occurrences129–124 Mya — about 0.7 occurrences124–120 Mya — about 2 occurrences120–115 Mya — about 1 occurrence115–110 Mya — about 0.4 occurrences101–96 Mya — about 0.1 occurrences96–91 Mya — about 0.1 occurrences91–87 Mya — about 0.1 occurrences87–82 Mya — about 0.2 occurrences82–77 Mya — about 0.4 occurrences77–73 Mya — about 0.4 occurrences73–68 Mya — about 0.4 occurrences68–63 Mya — about 0.2 occurrences184.2 Mya83.6 Mya204 Mya63 Mya

15 occurrences of Brasilichnium on record, most of them in the Early Jurassic. 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

15 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

8 formations

Navajo Sandstone — 37.69°N, 111.50°WNavajo Sandstone — 38.58°N, 109.52°WNavajo Sandstone — 37.00°N, 112.81°WNavajo-Nugget Sandstone — 40.58°N, 109.42°WNavajo-Nugget Sandstone — 42.09°N, 111.26°WBotucatu — 21.82°S, 48.07°WBotucatu — 29.72°S, 52.43°WAztec Sandstone — 35.43°N, 115.53°WAztec Sandstone — 36.42°N, 114.55°WLuohe — 39.17°N, 110.04°EKayenta — 36.10°N, 111.24°WMuerto — 26.12°N, 101.12°WCurtis — 38.73°N, 109.44°W

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The named rock units Brasilichnium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Brasilichnium and its relatives

Early Jurassic

Where Brasilichnium and its relatives were recorded in the Early Jurassic.

Found in the same rock

28 taxa

The Paleobiology Database records 15 sites for Brasilichnium, 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

13 references

Each of the 15 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. 1 further reference is 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 Brasilichnium 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 Brasilichnium, or no answer at all. This entry cannot say which.

No 3D scan of Brasilichnium was found in Smithsonian Open Access and Sketchfab.

MorphoSource was 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 itChelichnopodidae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Leonardi 1981