Crozonaspis dujardini
No picture of Crozonaspis dujardini was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Crozonaspis dujardini, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CrozonaspisPBDB
- Diet
- carnivorePBDB, for Phacopina
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Dalmanitidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 2.7 million years on record.
The record covers at least 452.8 Mya to 450.1 Mya. No occurrence read is dated outside 459.7 Mya to 443.1 Mya.
9 occurrences of Crozonaspis dujardini on record, most of them in the Ordovician. 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
9 occurrences- Ordovician100%
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
9 formations
- Onnia Shale Formation1
- Cantera Shale Formation1
- Kermeur Formation1
- Postolonnec Formation1
- Mont de Besneville Formation1
- Sangsurière Formation1
Loading coastlines…
The named rock units Crozonaspis dujardini has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Crozonaspis dujardini and its relatives
OrdovicianWhere Crozonaspis dujardini and its relatives were recorded in the Ordovician.
Found in the same rock
17 taxa- Dalmanitina (Dalmanitina)2 sites
- Dalmanitina (Dalmanitina) philippoti2 sites
- Onnia2 sites
- Apollonorthis bussacensis1 site
- Calymenella bayani1 site
- Calymenella boisseli1 site
- Ceratiocaris longicauda1 site
- Chasmatopora hypnoides1 site
- Dalmanitina1 site
- Drabovia1 site
- Eudolatites1 site
- Hedstroemina mundae1 site
- Plaesiacomia rara1 site
- Portranella exornata1 site
- Prionocheilus verneuili1 site
- Ptychonema bussacensis1 site
- Rafinesquina lignani1 site
The Paleobiology Database records 7 sites for Crozonaspis dujardini, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
5 references- Trilobites ordoviciens du Massif armoricain5
- Caradoc through early Ashgill brachiopods from the Central-Iberian Zone (central Spain)1
- Quelques especes de Calymenella, Eohomalonotus et Kerfornella (Trilobita, Ptychopariida) de l'Ordovicien du Massif Armoricain et de la Peninsule Iberique1
- Phacopina und Cheirurina (Trilobita) aus dem Ordovizium von Spanien1
- Descriptions of the new species of Zoophyta and Mollusca (appendix B to Ribeiro, Carlos, Carboniferous and Silurian formation of the neighborhood of Bussaco in Portugal)1
Each of the 9 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 Crozonaspis dujardini was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Crozonaspis dujardini, or no answer at all. This entry cannot say which.
No 3D scan of Crozonaspis dujardini 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCrozonaspis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Rouault 1847)