Elasmaria

Elasmaria is a clade of ornithopods known from Cretaceous deposits in the former Gondwana that contains many bipedal ornithopods that were previously considered "hypsilophodonts".

Elasmaria

Kabacchi · CC BY 2.0 · 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
EuiguanodontiaPBDB
Diet
herbivorePBDB, for Ornithopoda
Life habit
ground dwelling, gregariousPBDB, for Ornithischia
Motility
actively mobilePBDB, for Ornithischia
Environment
terrestrialPBDB, for Ornithischia

Time the record covers

At least 53 million years on record.

The record covers at least 125.77 Mya to 72.2 Mya. No occurrence read is dated outside 137.05 Mya to 66 Mya.

Early Cretaceous — about 20 of 45 occurrencesEarly CretaceousLate Cretaceous — about 25 of 45 occurrencesLate CretaceousPaleocene — about 0 of 45 occurrences138–136 Mya — about 0.1 occurrences136–134 Mya — about 0.2 occurrences134–131 Mya — about 0.2 occurrences131–129 Mya — about 0.2 occurrences129–126 Mya — about 0.2 occurrences126–124 Mya — about 2 occurrences124–121 Mya — about 2 occurrences121–119 Mya — about 0.9 occurrences114–111 Mya — about 7 occurrences111–109 Mya — about 5 occurrences109–106 Mya — about 0.6 occurrences106–104 Mya — about 0.6 occurrences104–102 Mya — about 0.6 occurrences102–99 Mya — about 2 occurrences99–97 Mya — about 3 occurrences97–94 Mya — about 3 occurrences94–92 Mya — about 2 occurrences92–89 Mya — about 1 occurrence89–87 Mya — about 0.7 occurrences87–84 Mya — about 2 occurrences84–82 Mya — about 2 occurrences82–79 Mya — about 2 occurrences79–77 Mya — about 2 occurrences77–74 Mya — about 2 occurrences74–72 Mya — about 2 occurrences72–70 Mya — about 2 occurrences70–67 Mya — about 2 occurrences67–65 Mya — about 0.7 occurrences125.77 Mya72.2 Mya138 Mya65 Mya

45 occurrences of Elasmaria 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

45 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

16 formations

Eumeralla — 38.78°S, 143.40°EEumeralla — 38.84°S, 143.58°EEumeralla — 36.70°S, 143.40°EEumeralla — 38.85°S, 143.55°E"Wonthaggi" — 38.66°S, 145.68°EGriman Creek — 29.74°S, 147.72°EGriman Creek — 29.46°S, 147.96°EGriman Creek — 29.69°S, 147.63°EGriman Creek — 29.40°S, 147.91°EAnacleto — 38.84°S, 68.03°WAnacleto — 38.81°S, 68.08°WAllaru Mudstone — 20.88°S, 143.80°EAllaru Mudstone — 20.97°S, 144.38°ECerro Lisandro — 39.07°S, 69.15°WLago Colhué Huapi — 45.60°S, 68.62°WCerro Fortaleza — 49.85°S, 72.11°WCerro Fortaleza — 49.95°S, 72.05°WSnow Hill Island — 63.93°S, 57.81°WSnow Hill Island — 63.93°S, 57.50°WChorrillo — 50.50°S, 72.55°WChorrillo — 50.51°S, 72.56°WBajo de la Carpa — 37.61°S, 69.32°WSierra Barrosa — 38.61°S, 68.64°WMackunda — 22.67°S, 144.60°EBajo Barreal — 44.91°S, 69.29°WHuincul — 39.40°S, 68.62°WMarfim — 12.90°S, 38.49°W

Loading coastlines…

The named rock units Elasmaria 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.

Elasmaria and its relatives

Late Cretaceous

Where Elasmaria and its relatives were recorded in the Late Cretaceous.

Found in the same rock

133 taxa

The Paleobiology Database records 33 sites for Elasmaria, 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

29 references

Each of the 45 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. 17 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 content1

Picture of Elasmaria

Credit
Kabacchi
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Elasmaria was found in MorphoSource and Sketchfab.

Smithsonian Open Access 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 itEuiguanodontia through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Calvo et al. 2007