Omeisaurus

Omeisaurus is a genus of sauropod dinosaur from the Middle to Late Jurassic Period of what is now China. Its name comes from Mount Emei, where it was discovered in the lower Shaximiao Formation of Sichuan Province.

Omeisaurus

Zhangzhugang · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
MamenchisauridaePBDB
Diet
herbivorePBDB, for Sauropoda
Life habit
ground dwelling, gregariousPBDB, for Sauropoda
Motility
actively mobilePBDB, for Sauropoda
Environment
terrestrialPBDB, for Sauropoda
Length
20 mWikidata

Time the record covers

At least 19 million years on record.

The record covers at least 168.2 Mya to 149.2 Mya. No occurrence read is dated outside 174.7 Mya to 143.1 Mya.

Early Jurassic — about 0 of 13 occurrencesMiddle Jurassic — about 7 of 13 occurrencesMiddle JurassicLate Jurassic — about 6 of 13 occurrencesLate JurassicEarly Cretaceous — about 0 of 13 occurrences175–174 Mya — about 0.0 occurrences174–173 Mya — about 0.1 occurrences173–172 Mya — about 0.1 occurrences172–171 Mya — about 0.1 occurrences171–170 Mya — about 0.6 occurrences170–169 Mya — about 0.6 occurrences169–168 Mya — about 0.7 occurrences168–167 Mya — about 0.9 occurrences167–165 Mya — about 0.9 occurrences165–164 Mya — about 0.9 occurrences164–163 Mya — about 0.9 occurrences163–162 Mya — about 0.9 occurrences162–161 Mya — about 0.7 occurrences161–160 Mya — about 0.4 occurrences160–159 Mya — about 0.4 occurrences159–158 Mya — about 0.4 occurrences158–157 Mya — about 0.4 occurrences157–156 Mya — about 0.4 occurrences156–155 Mya — about 0.3 occurrences155–153 Mya — about 0.2 occurrences153–152 Mya — about 0.2 occurrences152–151 Mya — about 0.2 occurrences151–150 Mya — about 0.2 occurrences150–149 Mya — about 0.2 occurrences149–148 Mya — about 0.5 occurrences148–147 Mya — about 0.5 occurrences147–146 Mya — about 0.5 occurrences146–145 Mya — about 0.5 occurrences145–144 Mya — about 0.5 occurrences144–142 Mya — about 0.2 occurrences168.2 Mya149.2 Mya175.3 Mya142.5 Mya

13 occurrences of Omeisaurus on record, most of them in the Middle 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

13 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

1 formation

Shaximiao — 29.48°N, 104.37°EShaximiao — 29.80°N, 104.85°EShaximiao — 30.00°N, 107.25°EShaximiao — 28.35°N, 104.78°EShaximiao — 29.41°N, 104.85°EShaximiao — 29.65°N, 104.07°EShaximiao — 30.94°N, 108.75°EShaximiao — 29.61°N, 104.19°E

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The named rock units Omeisaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Omeisaurus and its relatives

Middle Jurassic

Where Omeisaurus and its relatives were recorded in the Middle Jurassic.

Found in the same rock

48 taxa

The Paleobiology Database records 12 sites for Omeisaurus, 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

11 references

Each of the 13 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. 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 content2

Picture of Omeisaurus

Credit
Zhangzhugang
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
PaleoMari
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itMamenchisauridae through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Young 1939