Tumicephalus depressus
No picture of Tumicephalus depressus 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 Tumicephalus depressus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TumicephalusPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Pterocephaliidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 497 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
18 occurrences of Tumicephalus depressus 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
18 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
5 formations
- Orr Formation9
- Nounan Formation3
- Lincoln Peak Formation2
- Dunderberg Shale Formation1
- Johns Wash Limestone Formation1
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The named rock units Tumicephalus depressus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Tumicephalus depressus and its relatives
CambrianWhere Tumicephalus depressus and its relatives were recorded in the Cambrian.
Found in the same rock
6 taxa- Dicanthopyge convergens4 sites
- Aphelaspis arsoides3 sites
- Dicanthopyge reductus2 sites
- Dunderbergia brevispina2 sites
- Dicanthopyge1 site
- Dicanthopyge quadrata1 site
The Paleobiology Database records 18 sites for Tumicephalus depressus, 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
4 references- Upper Cambrian Orr Formation: Its Subdivisions and Correlatives in Western Utah9
- Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States5
- Cambrian trilobites from the Nounan Dolomite and lower St. Charles Formation (upper Marjuman to lower Sunwaptan; Miaolingian to Furongian Series), Smithfield Canyon, northern Utah3
- On the Lower Ordovician faunas of East Greenland1
Each of the 18 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 Tumicephalus depressus 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 Tumicephalus depressus, or no answer at all. This entry cannot say which.
No 3D scan of Tumicephalus depressus 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 itTumicephalus through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Palmer 1965