Barrosasaurus casamiquelai

Barrosasaurus is a genus of titanosaurian sauropod dinosaur, first described by paleontologists Leonardo Salgado and Rodolfo Coria in 2009. The fossils, consisting of three fossil dorsal (back) vertebrae, are well-preserved but incomplete. They were discovered in the Anacleto Formation of the Neuquén province of western Argentina. The type species is Barrosasaurus casamiquelai. The genus name is named after the Sierra Barrosa in Neuquén. The specific epithet honours the Argentinian paleontologist Rodolfo Magín Casamiquela. It has been estimated to be 18 meters in length and 13.5 tonnes in weight.

Barrosasaurus casamiquelai

Skye McDavid · 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
BarrosasaurusPBDB
Diet
herbivorePBDB, for Sauropoda
Life habit
ground dwelling, gregariousPBDB, for Sauropoda
Motility
actively mobilePBDB, for Sauropoda
Environment
terrestrialPBDB, for Sauropoda

Time the record covers

At least 2.1 million years on record.

The record covers at least 85.7 Mya to 83.6 Mya. No occurrence read is dated outside 93.9 Mya to 72.2 Mya.

Late Cretaceous — about 2 of 2 occurrencesLate Cretaceous94–94 Mya — about 0.0 occurrences94–93 Mya — about 0.1 occurrences93–92 Mya — about 0.1 occurrences92–91 Mya — about 0.1 occurrences91–91 Mya — about 0.1 occurrences91–90 Mya — about 0.1 occurrences90–89 Mya — about 0.1 occurrences89–88 Mya — about 0.1 occurrences88–88 Mya — about 0.1 occurrences88–87 Mya — about 0.1 occurrences87–86 Mya — about 0.1 occurrences86–85 Mya — about 0.0 occurrences84–83 Mya — about 0.0 occurrences83–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences72–72 Mya — about 0.0 occurrences85.7 Mya – 83.6 Mya94.4 Mya71.7 Mya

2 occurrences of Barrosasaurus casamiquelai on record, most of them in the Late 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

2 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

2 formations

Anacleto — 38.84°S, 68.84°WPortezuelo — 38.90°S, 69.55°W

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The named rock units Barrosasaurus casamiquelai has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Barrosasaurus casamiquelai and its relatives

Late Cretaceous

Where Barrosasaurus casamiquelai and its relatives were recorded in the Late Cretaceous.

Found in the same rock

1 taxon

The Paleobiology Database records 2 sites for Barrosasaurus casamiquelai, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 2 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 content1

Picture of Barrosasaurus casamiquelai

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

No 3D scan of Barrosasaurus casamiquelai 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 itBarrosasaurus through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Salgado and Coria 2009