Paramecephalus defossus
No picture of Paramecephalus defossus 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 Paramecephalus defossus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ParahiolitesPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Ptychopariidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 9.5 million years on record.
Every occurrence read is dated to somewhere between 506.5 Mya and 497 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Paramecephalus defossus 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
4 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
1 formation
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The named rock units Paramecephalus defossus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Paramecephalus defossus and its relatives
CambrianWhere Paramecephalus defossus and its relatives were recorded in the Cambrian.
Found in the same rock
8 taxa- Gunnia smithi2 sites
- Douposiella himalaica1 site
- Gunnia1 site
- Kunmingaspis stracheyi1 site
- Monanocephalus maopoensis1 site
- Pagetia1 site
- Peronopsis1 site
- Peronopsis amplaxis1 site
The Paleobiology Database records 4 sites for Paramecephalus defossus, 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
2 references- Cambrian Trilobites from the Parahio and Zanskar Valleys, Indian Himalaya3
- Agnostid Fauna from the Cambrian of Spiti1
Each of the 4 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 Paramecephalus defossus 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 Paramecephalus defossus, 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 itParahiolites through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Reed 1910)