Temnocidaris
Temnocidaris is an extinct genus of echinoids that lived from the Late Cretaceous to the Paleocene. Its remains have been found in Europe and North America.

FunkMonk · 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
- StereocidarinaePBDB
- Diet
- grazer, omnivorePBDB, for Cidaroida
- Life habit
- low-level epifaunalPBDB, for Cidaroida
- Motility
- slow-movingPBDB, for Cidaroida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Cidaroida
Time the record covers
At least 149 million years on record.
The record covers at least 152.21 Mya to 2.58 Mya. No occurrence read is dated outside 154.8 Mya to 1.8 Mya.
120 occurrences of Temnocidaris on record, most of them in the Late 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
120 occurrences- Late Jurassic2%
- Early Cretaceous11%
- Late Cretaceous76%
- Paleocene8%
- Oligoceneunder 1%
- Mioceneunder 1%
- Plioceneunder 1%
- Pleistoceneunder 1%
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
28 formations
- Maastricht Formation20
- Gulpen Formation8
- Maastricht Formation8
- Wasia Formation5
- Grizzle Formation4
- White Chalk Formation3
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The named rock units Temnocidaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 further formations hold fewer occurrences each and are not listed. 42 occurrences have no formation on record, which is common for older literature.
Temnocidaris and its relatives
Late CretaceousWhere Temnocidaris and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,100 taxa- Echinogalerus28 sites
- Hemiaster23 sites
- Tetragramma variolare22 sites
- Catopygus18 sites
- Salenia16 sites
- Polydiadema15 sites
- Metopaster14 sites
- Phymosoma14 sites
- Coenholectypus excisus13 sites
- Goniopygus12 sites
- Nucleopygus12 sites
- Goniasteridae11 sites
- Isocrinus11 sites
- Orthopsis miliaris11 sites
- Tiaromma11 sites
- Hyposalenia10 sites
- Tylocidaris10 sites
- Astropectinidae9 sites
- Caletaster romani9 sites
- Discoides9 sites
- Goniopygus menardi9 sites
- Hemipneustes striatoradiatus9 sites
- Archiacia8 sites
- Chomataster acules8 sites
The Paleobiology Database records 98 sites for Temnocidaris, 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
39 references- Late Cretaceous-Early Paleocene echinoderms and the K/T boundary in the southeast Netherlands and the northeast Belgium. - part 4: Echinoids15
- The genus Typocidaris (Cidaroida; Echinoidea) in the Upper Cretaceous of the Maastricht area (Belgium and the Netherlands)14
- Paléoécologie et paléobiogéographie des faunes d'échinides du Cénomanien nord-aquitain (Charente-Maritime, France)13
- The genus Temnocidaris (Echinoidea, Cidaroida) in the Upper Cretaceous and lower Tertiary of the Maastricht area (Belgium and The Netherlands)13
- Cenomanian and Lower Turonian echinoderms from Wilmington, south-east Devon, England8
- Late Cretaceous nautilid beaks from near-shore/shallow water deposits of the Bohemian Cretaceous Basin (Czech Republic)6
- The Cretaceous echinoids from central Saudi Arabia5
- Coniacian-Maastrichtian of the Tremp Area (South Central Pyrenees)4
- Recherches géologiques sur le Crétacé inférieur de l'Estremadura (Portugal)4
- The echinoderms of the Rügen White Chalk (Maastrichtian, Germany)3
- Aptian-Cenomanian echinoids from northern Sinai, Egypt2
- Late Cretaceous-early Tertiary echinoids from northern Spain: implications for the Cretaceous-Tertiary extinction event2
Each of the 120 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. 27 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 Temnocidaris
- Source
- Wikipedia/Commons
- Credit
- FunkMonk
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Temnocidaris 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 itStereocidarinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cotteau 1863