Holaster

Holaster

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
HolasteridaePBDB
Diet
detritivorePBDB, for Holasteroida
Life habit
semi-infaunalPBDB, for Holasteroida
Motility
actively mobilePBDB, for Holasteroida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Holasteroida

Time the record covers

At least 73 million years on record.

The record covers at least 132.6 Mya to 59.24 Mya. No occurrence read is dated outside 137.05 Mya to 56 Mya.

Early Cretaceous — about 180 of 282 occurrencesEarly CretaceousLate Cretaceous — about 97 of 282 occurrencesLate CretaceousPaleocene — about 5 of 282 occurrencesPaleoceneEocene — about 0 of 282 occurrences139–136 Mya — about 1 occurrence136–133 Mya — about 3 occurrences133–130 Mya — about 36 occurrences130–127 Mya — about 42 occurrences127–125 Mya — about 26 occurrences125–122 Mya — about 3 occurrences122–119 Mya — about 2 occurrences119–116 Mya — about 2 occurrences116–113 Mya — about 2 occurrences113–111 Mya — about 5 occurrences111–108 Mya — about 5 occurrences108–105 Mya — about 14 occurrences105–102 Mya — about 24 occurrences102–99 Mya — about 30 occurrences99–97 Mya — about 38 occurrences97–94 Mya — about 35 occurrences94–91 Mya — about 3 occurrences91–88 Mya — about 1 occurrence88–85 Mya — about 0.4 occurrences85–82 Mya — about 1 occurrence82–80 Mya — about 0.3 occurrences80–77 Mya — about 0.3 occurrences77–74 Mya — about 0.3 occurrences74–71 Mya — about 0.5 occurrences71–68 Mya — about 0.8 occurrences68–66 Mya — about 0.8 occurrences66–63 Mya — about 0.6 occurrences63–60 Mya — about 0.3 occurrences60–57 Mya — about 3 occurrences57–54 Mya — about 1 occurrence132.6 Mya59.24 Mya139 Mya54 Mya

282 occurrences of Holaster 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

282 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

38 formations

Calcaires à Spatangues — 48.73°N, 4.92°ECalcaires à Spatangues — 48.69°N, 5.03°ECalcaires à Spatangues — 48.64°N, 5.04°ECalcaires à Spatangues — 48.60°N, 5.13°ECalcaires à Spatangues — 48.54°N, 5.05°ECalcaires à Spatangues — 48.53°N, 4.99°ECalcaires à Spatangues — 48.44°N, 5.08°ECalcaires à Spatangues — 48.41°N, 4.87°ECalcaires à Spatangues — 48.40°N, 4.84°ECalcaires à Spatangues — 48.35°N, 4.74°ECalcaires à Spatangues — 48.30°N, 4.58°ECalcaires à Spatangues — 48.27°N, 4.53°ECalcaires à Spatangues — 48.21°N, 4.54°ECalcaires à Spatangues — 48.16°N, 4.45°ECalcaires à Spatangues — 48.17°N, 4.34°ECalcaires à Spatangues — 48.11°N, 4.32°ECalcaires à Spatangues — 48.09°N, 4.24°ECalcaires à Spatangues — 48.02°N, 4.17°ECalcaires à Spatangues — 48.02°N, 4.04°ECalcaires à Spatangues — 47.98°N, 4.08°ECalcaires à Spatangues — 47.94°N, 3.98°ECalcaires à Spatangues — 47.83°N, 3.93°ECalcaires à Spatangues — 47.95°N, 3.90°ECalcaires à Spatangues — 47.92°N, 3.84°ECalcaires à Spatangues — 47.87°N, 3.66°ECalcaires à Spatangues — 47.83°N, 3.67°ECalcaires à Spatangues — 47.80°N, 3.65°ECalcaires à Spatangues — 47.76°N, 3.51°ECalcaires à Spatangues — 47.74°N, 3.52°ECalcaires à Spatangues — 47.33°N, 2.83°ECalcaires à Spatangues — 47.64°N, 3.33°ECalcaires à Spatangues — 47.51°N, 3.12°ECalcaires à Spatangues — 47.40°N, 2.77°ECalcaires à Spatangues — 47.68°N, 3.37°ECalcaires à Spatangues — 47.57°N, 3.23°ECalcaires à Spatangues — 47.55°N, 3.18°ECalcaires à Spatangues — 47.50°N, 3.05°EGrès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 46.09°N, 6.76°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 46.01°N, 6.35°EGrès verts helvétiques — 45.98°N, 6.78°ECalcaires de Fiz — 45.96°N, 6.69°ECalcaires de Fiz — 46.04°N, 6.62°ECalcaires de Fiz — 45.98°N, 6.79°ECalcaires de Fiz — 46.13°N, 6.78°EGrizzle — 50.80°N, 0.18°EBeer Head Limestone — 51.08°N, 1.18°EBeer Head Limestone — 50.83°N, 2.45°WBeer Head Limestone — 50.77°N, 2.57°WBeer Head Limestone — 50.80°N, 2.67°WUpper Greensand — 50.80°N, 0.18°EUpper Greensand — 51.28°N, 0.37°WUpper Greensand — 50.75°N, 2.33°WUpper Greensand — 50.59°N, 1.24°WCouches du Freu — 46.01°N, 6.35°EVincentown — 39.97°N, 74.68°WVincentown — 39.88°N, 75.13°WVincentown — 39.94°N, 74.76°WVincentown — 40.04°N, 74.98°WCalcaires des Fiz — 45.97°N, 6.69°ECalcaires des Fiz — 46.02°N, 6.60°EWilmington Sands — 50.80°N, 0.18°EConglomérats de Bargy — 45.86°N, 6.45°EConglomérats de Bargy — 45.97°N, 6.32°EHythe — 51.08°N, 1.18°EHythe — 51.25°N, 0.07°WFolkestone — 51.08°N, 1.18°EFolkestone — 51.08°N, 1.08°WBargy Conglomerate — 46.00°N, 6.10°EGreenhorn Limestone — 38.46°N, 104.78°WGreenhorn Limestone — 38.67°N, 104.84°WLower Chalk — 50.83°N, 2.60°WIndidura — 29.35°N, 101.05°WCotinguiba — 10.76°S, 37.07°WPerte-du-Rhone — 45.15°N, 5.48°EMonk’s Bay Sandstone — 50.60°N, 1.32°WFerruginous Sands — 50.63°N, 1.17°WSandgate — 51.23°N, 0.58°WMunday’s Hill Phosphatic Sandstone — 51.92°N, 0.67°WHolywell Nodular Chalk — 51.25°N, 0.15°W

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The named rock units Holaster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 further formations hold fewer occurrences each and are not listed. 67 occurrences have no formation on record, which is common for older literature.

Holaster and its relatives

Early Cretaceous

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

Found in the same rock

1,100 taxa

The Paleobiology Database records 233 sites for Holaster, 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

37 references

Each of the 282 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. 25 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 Holaster

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

No 3D scan of Holaster 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 itHolasteridae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1836