Mesodiadema

Mesodiadema

via iDigBio · CC BY · 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
DiadematidaePBDB
Diet
grazerPBDB, for Diadematoida
Life habit
low-level epifaunalPBDB, for Diadematoida
Motility
slow-movingPBDB, for Diadematoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 14 million years on record.

The record covers at least 241.464 Mya to 227.3 Mya. No occurrence read is dated outside 244.4 Mya to 205.7 Mya.

Middle Triassic — about 1 of 3 occurrencesMiddle TriassicLate Triassic — about 2 of 3 occurrencesLate Triassic245–244 Mya — about 0.2 occurrences244–242 Mya — about 0.5 occurrences242–241 Mya — about 0.3 occurrences237–236 Mya — about 0.4 occurrences236–234 Mya — about 0.4 occurrences234–233 Mya — about 0.2 occurrences228–226 Mya — about 0.0 occurrences226–225 Mya — about 0.1 occurrences225–224 Mya — about 0.1 occurrences224–222 Mya — about 0.1 occurrences222–221 Mya — about 0.1 occurrences221–220 Mya — about 0.1 occurrences220–218 Mya — about 0.1 occurrences218–217 Mya — about 0.1 occurrences217–216 Mya — about 0.1 occurrences216–214 Mya — about 0.1 occurrences214–213 Mya — about 0.1 occurrences213–212 Mya — about 0.1 occurrences212–210 Mya — about 0.1 occurrences210–209 Mya — about 0.1 occurrences209–208 Mya — about 0.1 occurrences208–206 Mya — about 0.1 occurrences206–205 Mya — about 0.0 occurrences241.464 Mya227.3 Mya245.2 Mya204.9 Mya

3 occurrences of Mesodiadema on record, most of them in the Late Triassic. 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

3 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

Qingyan — 26.33°N, 106.68°ECassian — 46.53°N, 11.92°E

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The named rock units Mesodiadema 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.

Mesodiadema and its relatives

Late Triassic

Where Mesodiadema and its relatives were recorded in the Late Triassic.

Found in the same rock

121 taxa

The Paleobiology Database records 3 sites for Mesodiadema, 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

3 references

Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Mesodiadema

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Mesodiadema 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.

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

Keep going

What may have been alongside itDiadematidae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Neumayr 1889