Schizasteridae

Schizasteridae is a family of echinoderms belonging to the order Spatangoida.

Schizasteridae

François Michonneau · CC BY 4.0 · 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
PaleopneustinaPBDB
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 100 million years on record.

The record covers at least 100.5 Mya to 129 ka. No occurrence read is dated outside 106.3 Mya to 11.7 ka.

Early Cretaceous — about 1 of 416 occurrencesLate Cretaceous — about 50 of 416 occurrencesLate CretaceousPaleocene — about 44 of 416 occurrencesPaleoceneEocene — about 156 of 416 occurrencesEoceneOligocene — about 48 of 416 occurrencesOligoceneMiocene — about 89 of 416 occurrencesMiocenePliocene — about 17 of 416 occurrencesPleistocene — about 11 of 416 occurrences108–105 Mya — about 0.3 occurrences105–101 Mya — about 0.6 occurrences101–98 Mya — about 0.2 occurrences98–94 Mya — about 0.1 occurrences94–90 Mya — about 1.0 occurrences90–87 Mya — about 0.2 occurrences87–83 Mya — about 0.5 occurrences83–80 Mya — about 3 occurrences80–76 Mya — about 3 occurrences76–72 Mya — about 3 occurrences72–69 Mya — about 22 occurrences69–65 Mya — about 22 occurrences65–61 Mya — about 17 occurrences61–58 Mya — about 14 occurrences58–54 Mya — about 14 occurrences54–51 Mya — about 11 occurrences51–47 Mya — about 14 occurrences47–43 Mya — about 22 occurrences43–40 Mya — about 35 occurrences40–36 Mya — about 52 occurrences36–33 Mya — about 23 occurrences33–29 Mya — about 16 occurrences29–25 Mya — about 17 occurrences25–22 Mya — about 18 occurrences22–18 Mya — about 25 occurrences18–14 Mya — about 23 occurrences14–11 Mya — about 17 occurrences11–7.2 Mya — about 10 occurrences7.2–3.6 Mya — about 17 occurrences3.6–0 Mya — about 16 occurrences100.5 Mya129 ka108 Mya0 Mya

416 occurrences of Schizasteridae on record, most of them in the Eocene. The Paleobiology Database records this as a living group. 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

416 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

145 formations

Castle Hayne — 34.64°N, 77.65°WCastle Hayne — 34.37°N, 77.86°WCastle Hayne — 34.66°N, 77.73°WCastle Hayne — 34.36°N, 77.82°WCastle Hayne — 35.01°N, 77.57°WCastle Hayne — 34.23°N, 77.94°WCastle Hayne — 35.30°N, 77.28°WPrairie Bluff — 34.24°N, 89.00°WPrairie Bluff — 34.48°N, 88.98°WPrairie Bluff — 33.73°N, 88.90°WPrairie Bluff — 32.73°N, 88.30°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.05°N, 86.81°WPrairie Bluff — 32.04°N, 86.79°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 34.76°N, 88.92°WPrairie Bluff — 34.56°N, 88.99°WPrairie Bluff — 34.41°N, 88.98°WPrairie Bluff — 34.25°N, 88.98°WSantee Limestone — 33.33°N, 80.15°WSantee Limestone — 33.33°N, 79.69°WDammam — 25.49°N, 50.85°EDammam — 25.22°N, 50.83°ECorsicana Marl — 30.23°N, 97.52°WCorsicana Marl — 29.37°N, 98.78°WCorsicana Marl — 29.48°N, 98.81°WCorsicana Marl — 29.59°N, 98.08°WCorsicana Marl — 29.40°N, 98.63°WMokattam — 30.02°N, 31.27°EMokattam — 28.00°N, 30.75°EClayton — 31.88°N, 85.45°WClayton — 31.89°N, 84.80°WClayton — 31.71°N, 85.61°WClayton — 31.93°N, 86.68°WClayton — 35.47°N, 91.41°WClayton — 32.21°N, 84.32°WClayton — 32.13°N, 87.40°WAnacacho Limestone — 29.44°N, 98.86°WAnacacho Limestone — 29.19°N, 100.30°WAnacacho Limestone — 29.50°N, 98.91°WAnacacho Limestone — 29.25°N, 99.91°WAnacacho Limestone — 29.42°N, 98.74°WAnacacho Limestone — 29.20°N, 100.14°WKaiata Mudstone — 41.63°S, 171.91°EKaiata Mudstone — 42.08°S, 171.35°EKaiata Mudstone — 42.14°S, 171.43°EKaiata Mudstone — 42.43°S, 171.32°EMoodys Branch — 31.50°N, 87.80°WMoodys Branch — 31.71°N, 87.78°WMoodys Branch — 31.55°N, 87.58°WMoodys Branch — 32.70°N, 83.56°WMoodys Branch — 32.33°N, 90.15°WMoodys Branch — 32.23°N, 92.15°WUpper Bhuban — 22.88°N, 92.73°EUpper Bhuban — 23.00°N, 93.00°ECrystal River Limestone — 30.05°N, 83.18°WCrystal River Limestone — 28.93°N, 82.70°WCrystal River Limestone — 28.90°N, 82.59°WRoca — 37.67°S, 67.50°WRoca — 39.00°S, 67.53°WRoca — 36.90°S, 67.92°WBateque — 26.75°N, 113.00°WBateque — 26.67°N, 112.94°WBateque — 26.50°N, 112.73°WMartinez — 38.05°N, 122.15°WMartinez — 38.00°N, 122.10°WMartinez — 38.90°N, 122.60°WPietra Leccese — 40.08°N, 18.42°EPietra Leccese — 40.38°N, 18.18°ETeberemt — 16.67°N, 0.50°ETeberemt — 17.40°N, 0.43°ETeberemt — 19.22°N, 0.30°ETeberemt — 17.40°N, 0.50°EBorutta — 40.83°N, 8.43°ESuwannee Limestone — 29.33°N, 83.14°WSuwannee Limestone — 28.56°N, 82.39°WSanta Susana — 34.11°N, 118.57°WSanta Susana — 34.24°N, 118.74°WLlajas — 34.31°N, 118.67°WOgawa — 36.70°N, 138.02°EOgawa — 36.61°N, 138.05°EVaqueros — 34.33°N, 119.03°WVaqueros — 34.04°N, 118.88°WVaqueros — 34.36°N, 118.94°WVaqueros — 34.58°N, 120.16°WTortonian Limestone — 35.00°N, 24.76°E

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The named rock units Schizasteridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 121 further formations hold fewer occurrences each and are not listed. 79 occurrences have no formation on record, which is common for older literature.

Schizasteridae and its relatives

Eocene

Where Schizasteridae and its relatives were recorded in the Eocene.

Found in the same rock

2,817 taxa

The Paleobiology Database records 308 sites for Schizasteridae, 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

146 references

Each of the 416 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. 134 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 Schizasteridae

Credit
François Michonneau
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Schizasteridae 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.

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 itPaleopneustina through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Lambert 1905)