Holasteridae

Holasteridae is an extinct family of sea urchins.

Holasteridae

Hectonichus · CC BY-SA 3.0 · 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
MeridosternataPBDB
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 107 million years on record.

The record covers at least 132.6 Mya to 25.2 Mya. No occurrence read is dated outside 137.05 Mya to 21.7 Mya.

Early Cretaceous — about 183 of 344 occurrencesEarly CretaceousLate Cretaceous — about 145 of 344 occurrencesLate CretaceousPaleocene — about 10 of 344 occurrencesPaleoceneEocene — about 3 of 344 occurrencesEoceneOligocene — about 2 of 344 occurrencesOligoceneMiocene — about 0 of 344 occurrences139–135 Mya — about 2 occurrences135–131 Mya — about 21 occurrences131–127 Mya — about 60 occurrences127–123 Mya — about 27 occurrences123–119 Mya — about 4 occurrences119–115 Mya — about 4 occurrences115–111 Mya — about 6 occurrences111–107 Mya — about 8 occurrences107–103 Mya — about 28 occurrences103–99 Mya — about 41 occurrences99–95 Mya — about 58 occurrences95–91 Mya — about 26 occurrences91–87 Mya — about 5 occurrences87–83 Mya — about 10 occurrences83–79 Mya — about 6 occurrences79–75 Mya — about 6 occurrences75–71 Mya — about 6 occurrences71–67 Mya — about 9 occurrences67–63 Mya — about 5 occurrences63–59 Mya — about 2 occurrences59–55 Mya — about 6 occurrences55–51 Mya — about 2 occurrences39–35 Mya — about 0.7 occurrences35–31 Mya — about 1 occurrence31–27 Mya — about 1.0 occurrences27–23 Mya — about 0.7 occurrences23–19 Mya — about 0.5 occurrences132.6 Mya25.2 Mya139 Mya19 Mya

344 occurrences of Holasteridae on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

344 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

59 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°EUpper 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°WBeer 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°WCabo de Lata — 43.49°N, 3.79°WCabo de Lata — 42.84°N, 2.18°WCabo de Lata — 42.92°N, 1.79°WCouches du Freu — 46.01°N, 6.35°EWilmington Sands — 50.80°N, 0.18°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°EConglomérats de Bargy — 45.86°N, 6.45°EConglomérats de Bargy — 45.97°N, 6.32°EArén — 42.17°N, 0.90°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°EWhite Chalk — 54.52°N, 13.63°EEl Zadorra — 42.88°N, 2.20°WGreenhorn 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°WThemed — 30.00°N, 32.67°EThemed — 29.67°N, 34.50°ECotinguiba — 10.76°S, 37.07°WPerte-du-Rhone — 45.15°N, 5.48°E

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The named rock units Holasteridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 35 further formations hold fewer occurrences each and are not listed. 93 occurrences have no formation on record, which is common for older literature.

Holasteridae and its relatives

Early Cretaceous

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

Found in the same rock

1,320 taxa

The Paleobiology Database records 277 sites for Holasteridae, and this reads 240 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

62 references

Each of the 344 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. 50 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 Holasteridae

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Holasteridae was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itMeridosternata through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Pictet 1857