Cryptoderaspis
No picture of Cryptoderaspis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Cryptoderaspis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- OnchonotopsidaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 500 thousand years on record.
The record covers at least 499.5 Mya to 499 Mya. No occurrence read is dated outside 504.5 Mya to 497 Mya.
5 occurrences of Cryptoderaspis on record, most of them in the Cambrian. 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
5 occurrences- Cambrian100%
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
2 formations
- Holm Dal Formation · Tavsens Iskappe Group4
- Spurs Formation · Mariner Group1
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The named rock units Cryptoderaspis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cryptoderaspis and its relatives
CambrianWhere Cryptoderaspis and its relatives were recorded in the Cambrian.
Found in the same rock
56 taxa- Catillicephala rotunda4 sites
- Conopolus granulus4 sites
- Kormagnostus seclusus4 sites
- Marjumia4 sites
- Modocia4 sites
- Oidalagnostus trispinifer4 sites
- Onchonotopsis4 sites
- Pearylandia4 sites
- Bynumia3 sites
- Cedaria3 sites
- Durinia3 sites
- Elrathia3 sites
- Hemirhodon3 sites
- Lingulella3 sites
- Olenoides3 sites
- Proagnostus bulbus3 sites
- Tomagnostella exsculpta3 sites
- Agnostus2 sites
- Balderia2 sites
- Bolaspidella stymacantha2 sites
- Bonneterrina2 sites
- Dorispira holmdalense2 sites
- Exigua2 sites
- Holmdalia tubercula2 sites
The Paleobiology Database records 5 sites for Cryptoderaspis, 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
2 references- Molluscs of the Holm Dal Formation (late Middle Cambrian), central North Greenland4
- An 'Acmarhachis typicalis' zone trilobite fauna from the Cambrian of Northern Victoria Land, Antarctica1
Each of the 5 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. 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 content0
No picture of Cryptoderaspis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Cryptoderaspis, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itOnchonotopsidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rasetti 1946