Metriomphalus

Metriomphalus

via iDigBio · CC BY-NC-ND · via iDigBio. 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
NododelphinulidaePBDB
Diet
grazerPBDB, for Trochoidea
Life habit
epifaunalPBDB, for Trochoidea
Motility
actively mobilePBDB, for Trochoidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 93 million years on record.

The record covers at least 199.5 Mya to 106.3 Mya. No occurrence read is dated outside 201.4 Mya to 100.5 Mya.

Late Triassic — about 0 of 38 occurrencesEarly Jurassic — about 3 of 38 occurrencesEarly JurassicMiddle Jurassic — about 8 of 38 occurrencesMiddle JurassicLate Jurassic — about 21 of 38 occurrencesLate JurassicEarly Cretaceous — about 6 of 38 occurrencesEarly CretaceousLate Cretaceous — about 0 of 38 occurrences203–200 Mya — about 0.8 occurrences200–196 Mya — about 1 occurrence196–193 Mya — about 1 occurrence193–189 Mya — about 0.0 occurrences168–165 Mya — about 3 occurrences165–161 Mya — about 5 occurrences161–158 Mya — about 4 occurrences158–154 Mya — about 4 occurrences154–151 Mya — about 11 occurrences151–147 Mya — about 2 occurrences133–130 Mya — about 0.2 occurrences130–126 Mya — about 0.3 occurrences126–123 Mya — about 2 occurrences123–119 Mya — about 2 occurrences109–105 Mya — about 0.3 occurrences105–102 Mya — about 1 occurrence102–98 Mya — about 0.5 occurrences199.5 Mya106.3 Mya203 Mya98 Mya

38 occurrences of Metriomphalus on record, most of them in the Late 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

38 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

13 formations

Chari — 23.50°N, 70.50°EBarranquín — 8.96°N, 63.55°WPatcham — 23.52°N, 69.00°EWest Walton — 52.18°N, 0.12°ECoral Rag — 51.77°N, 1.25°WAlcobaça — 39.55°N, 8.98°WAngulatensandstein — 48.30°N, 8.85°EArietenkalk — 48.73°N, 9.10°EYokonuma — 39.83°N, 141.62°EToriakeura — 35.69°N, 140.87°EKorallenoolith — 52.25°N, 9.60°EBetakalkbank — 48.33°N, 8.93°EMassenkalk — 48.89°N, 11.94°E

Loading coastlines…

The named rock units Metriomphalus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 20 occurrences have no formation on record, which is common for older literature.

Metriomphalus and its relatives

Late Jurassic

Where Metriomphalus and its relatives were recorded in the Late Jurassic.

Found in the same rock

649 taxa

The Paleobiology Database records 29 sites for Metriomphalus, 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

15 references

Each of the 38 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. 3 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 Metriomphalus

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itNododelphinulidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cossmann 1916