Chelidonocephalus
No picture of Chelidonocephalus 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 Chelidonocephalus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ProasaphiscidaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Proasaphiscidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 20 million years on record.
Every occurrence read is dated to somewhere between 506.5 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Chelidonocephalus 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
9 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
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The named rock units Chelidonocephalus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Chelidonocephalus and its relatives
CambrianWhere Chelidonocephalus and its relatives were recorded in the Cambrian.
Found in the same rock
17 taxa- Trilobita3 sites
- Derikaspis2 sites
- Dorypyge2 sites
- Paradoxides (Eccaparadoxides)2 sites
- Peronopsis fallax2 sites
- Acadoparadoxides pentagonalis1 site
- Anomocarella1 site
- Brachiopoda1 site
- Hadragnostus1 site
- Iranoleesia1 site
- Kaolishania1 site
- Koldiniella1 site
- Neodrepanura1 site
- Peronopsis1 site
- Prochuangia1 site
- Schantungia1 site
- Tsinania1 site
The Paleobiology Database records 8 sites for Chelidonocephalus, 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
3 references- Middle Cambrian trilobites from the Sosnik Formation, Derik-Mardin district, south-eastern Turkey6
- Chelidonocephalus trilobite fauna from the Cambrian of Iran2
- Latest Middle Cambrian metazoan reef from northern Iran1
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 Chelidonocephalus 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 Chelidonocephalus, or no answer at all. This entry cannot say which.
No 3D scan of Chelidonocephalus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itProasaphiscidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. King 1937