Pseudodiadematidae

Pseudodiadematidae are members of the phylum Echinodermata. Their fossil remains date to the Cretaceous period. Its child geniuses are Pseudodiadema, Acrocidaris, Acrotiaris and Aplodiadema. The distribution of fossils in the Cretaceous are in Algeria, Brazil, Egypt, France, Hungary, Jordan, Madagascar, Morocco, Nigeria, Peru, Portugal, Saudi Arabia, Spain, Switzerland, the United Arab Emirates, the United Kingdom, United States (Texas), and Yemen. In the Jurassic to Cretaceous it is found in China. In the Jurassic found in Ethiopia, France, Germany, India, Luxembourg, Morocco, Poland, Portugal, Saudi Arabia, Somalia, Switzerland, and the United Kingdom.

Pseudodiadematidae

Frédéric Ducarme · CC BY-SA 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
CarinaceaPBDB
Diet
grazer, deposit feederPBDB, for Echinoidea
Life habit
epifaunalPBDB, for Echinoidea
Motility
actively mobilePBDB, for Echinoidea
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 117 million years on record.

The record covers at least 201.4 Mya to 83.6 Mya. No occurrence read is dated outside 205.7 Mya to 66 Mya.

Late Triassic — about 1 of 196 occurrencesEarly Jurassic — about 2 of 196 occurrencesEarly JurassicMiddle Jurassic — about 3 of 196 occurrencesMiddle JurassicLate Jurassic — about 17 of 196 occurrencesLate JurassicEarly Cretaceous — about 58 of 196 occurrencesEarly CretaceousLate Cretaceous — about 115 of 196 occurrencesLate CretaceousPaleocene — about 0 of 196 occurrences208–204 Mya — about 0.5 occurrences204–199 Mya — about 0.6 occurrences199–194 Mya — about 0.2 occurrences194–189 Mya — about 0.2 occurrences189–184 Mya — about 0.2 occurrences184–179 Mya — about 1 occurrence179–175 Mya — about 0.2 occurrences170–165 Mya — about 2 occurrences165–160 Mya — about 2 occurrences160–155 Mya — about 6 occurrences155–150 Mya — about 6 occurrences150–146 Mya — about 4 occurrences146–141 Mya — about 0.4 occurrences141–136 Mya — about 3 occurrences136–131 Mya — about 8 occurrences131–126 Mya — about 2 occurrences126–121 Mya — about 3 occurrences121–116 Mya — about 8 occurrences116–112 Mya — about 7 occurrences112–107 Mya — about 6 occurrences107–102 Mya — about 17 occurrences102–97 Mya — about 62 occurrences97–92 Mya — about 55 occurrences92–87 Mya — about 1 occurrence87–83 Mya — about 0.2 occurrences83–78 Mya — about 0.5 occurrences78–73 Mya — about 0.5 occurrences73–68 Mya — about 0.1 occurrences68–63 Mya — about 0.0 occurrences201.4 Mya83.6 Mya208 Mya63 Mya

196 occurrences of Pseudodiadematidae on record, most of them in the Late 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

196 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

48 formations

Grès verts helvétiques — 45.99°N, 6.71°EGrès verts helvétiques — 46.10°N, 6.82°EGrès verts helvétiques — 46.03°N, 6.57°EGrès verts helvétiques — 45.98°N, 6.78°EGrizzle — 50.80°N, 0.18°EGalala — 29.67°N, 34.50°EGalala — 30.38°N, 33.52°EGalala — 29.28°N, 34.72°EGalala — 29.63°N, 34.40°EWilmington Sands — 50.80°N, 0.18°ECotinguiba — 11.00°S, 37.31°WCotinguiba — 10.63°S, 36.92°WCotinguiba — 10.63°S, 36.95°WCotinguiba — 11.35°S, 37.46°WHalal — 30.37°N, 34.45°EHalal — 30.79°N, 33.48°EWasia — 24.39°N, 47.75°EWasia — 24.20°N, 47.67°EWasia — 28.28°N, 43.45°EWasia — 27.95°N, 43.90°EKanawa Limestones — 10.30°N, 11.38°ERisan Aneiza — 31.00°N, 33.50°ERisan Aneiza — 30.79°N, 33.48°ERaha — 28.65°N, 33.24°EHanifa — 23.90°N, 46.28°EHanifa — 22.60°N, 46.37°EHanifa — 25.63°N, 45.67°EMarno-calcaires à Heteraster oblongus — 38.85°N, 9.33°WPicofrentes — 41.12°N, 2.77°WFerruginous Sands — 50.60°N, 1.32°WFerruginous Sands — 50.63°N, 1.17°WSecond niveau de Calcaires à Rudistes — 45.95°N, 1.08°WCraie glauconieuse — 48.84°N, 0.13°EAmbarimaninga — 16.50°S, 46.00°EAbu Qada — 29.28°N, 34.72°EAbu Qada — 29.63°N, 34.40°EPerte-du-Rhone — 45.15°N, 5.48°EMonk’s Bay Sandstone — 50.60°N, 1.32°WHythe — 51.08°N, 1.18°ESandgate — 51.67°N, 1.58°WWoburn Sand — 52.00°N, 0.77°WTaboulouart — 31.21°N, 7.88°W

Loading coastlines…

The named rock units Pseudodiadematidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 further formations hold fewer occurrences each and are not listed. 66 occurrences have no formation on record, which is common for older literature.

Pseudodiadematidae and its relatives

Late Cretaceous

Where Pseudodiadematidae and its relatives were recorded in the Late Cretaceous.

Found in the same rock

1,392 taxa

The Paleobiology Database records 135 sites for Pseudodiadematidae, 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

56 references

Each of the 196 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. 44 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 Pseudodiadematidae

Credit
Frédéric Ducarme
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Pseudodiadematidae 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 itCarinacea through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Pomel 1883