Macraster

Macraster

via iDigBio · CC0 · 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
ToxasteridaePBDB
Diet
deposit feeder, detritivorePBDB, for Spatangoida
Life habit
shallow infaunalPBDB, for Spatangoida
Motility
slow-movingPBDB, for Spatangoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Spatangoida

Time the record covers

At least 6.9 million years on record.

The record covers at least 113.2 Mya to 106.3 Mya. No occurrence read is dated outside 121.4 Mya to 100.5 Mya.

Early Cretaceous — about 13 of 13 occurrencesEarly CretaceousLate Cretaceous — about 0 of 13 occurrences122–121 Mya — about 0.0 occurrences121–120 Mya — about 0.1 occurrences120–120 Mya — about 0.1 occurrences120–119 Mya — about 0.1 occurrences119–118 Mya — about 0.1 occurrences118–118 Mya — about 0.1 occurrences118–117 Mya — about 0.1 occurrences117–116 Mya — about 0.1 occurrences116–115 Mya — about 0.1 occurrences115–115 Mya — about 0.1 occurrences115–114 Mya — about 0.1 occurrences114–113 Mya — about 0.1 occurrences113–112 Mya — about 0.3 occurrences112–112 Mya — about 0.3 occurrences112–111 Mya — about 0.3 occurrences111–110 Mya — about 0.3 occurrences110–109 Mya — about 0.8 occurrences109–109 Mya — about 0.9 occurrences109–108 Mya — about 0.9 occurrences108–107 Mya — about 0.9 occurrences107–107 Mya — about 0.9 occurrences107–106 Mya — about 0.8 occurrences106–105 Mya — about 0.8 occurrences105–104 Mya — about 0.8 occurrences104–104 Mya — about 0.8 occurrences104–103 Mya — about 0.8 occurrences103–102 Mya — about 0.8 occurrences102–101 Mya — about 0.8 occurrences101–101 Mya — about 0.8 occurrences101–100 Mya — about 0.2 occurrences113.2 Mya106.3 Mya121.9 Mya100 Mya

13 occurrences of Macraster on record, most of them in the Early 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

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

4 formations

Grès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 46.09°N, 6.76°EGrès verts helvétiques — 46.01°N, 6.35°EGrès verts helvétiques — 46.02°N, 6.75°EGrès verts helvétiques — 46.88°N, 6.32°EDenison — 32.79°N, 97.32°WJijona — 38.57°N, 0.27°WMural — 30.82°N, 111.89°W

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The named rock units Macraster 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.

Macraster and its relatives

Early Cretaceous

Where Macraster and its relatives were recorded in the Early Cretaceous.

Found in the same rock

95 taxa

The Paleobiology Database records 11 sites for Macraster, 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

5 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 content1

Picture of Macraster

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Macraster 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 itToxasteridae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Roemer 1888