Tomagnostus
No picture of Tomagnostus 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 Tomagnostus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PtychagnostidaePBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
- Vision
- blindPBDB, for Ptychagnostidae
Time the record covers
At least 9.5 million years on record.
The record covers at least 506.5 Mya to 497 Mya. No occurrence read is dated outside 516.2 Mya to 486.85 Mya.
35 occurrences of Tomagnostus 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
35 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
13 formations
- Shallow Bay Formation · Cow Head Group11
- Alum Shale Formation4
- Aktas Formation3
- Abbey Shale Formation3
- Henson Gletscher Formation3
- Asbill Pond Formation · Elvins Group2
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The named rock units Tomagnostus 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.
Tomagnostus and its relatives
CambrianWhere Tomagnostus and its relatives were recorded in the Cambrian.
Found in the same rock
137 taxa- Peronopsis11 sites
- Olenoides6 sites
- Hypagnostus parvifrons5 sites
- Pagetia5 sites
- Ptychagnostus atavus5 sites
- Bathyuriscus4 sites
- Eoptychoparia4 sites
- Paradoxides4 sites
- Ptychagnostus4 sites
- Elrathia3 sites
- Hypagnostus3 sites
- Lejopyge barrandei3 sites
- Onymagnostus hybridus3 sites
- Ptychagnostus seminula3 sites
- Acadagnostus acadica2 sites
- Bailiaspis2 sites
- Bathyuriscus terranovensis2 sites
- Chancia2 sites
- Cotalagnostus claudicans2 sites
- Dictyonina2 sites
- Doryagnostus2 sites
- Eodiscus scanicus2 sites
- Euagnostus aff. interstrictus2 sites
- Hyolithida2 sites
The Paleobiology Database records 27 sites for Tomagnostus, 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
13 references- Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland6
- Mid-Cambrian trilobites from the lowest part of the Cow Head Group, western Newfoundland5
- A highly diverse trilobite fauna with Avalonian affinities from the Middle Cambrian Acidusus atavus Zone (Drumian Stage) of Bornholm, Denmark4
- Ergaliev and Ergaliev, 20084
- Agnostoid trilobites from the Henson Gletscher and Kap Stanton formations (Middle Cambrian), North Greenland4
- A review of the Middle Cambrian Agnostida from the Abbey Shales, England3
- Middle Cambrian (Drumian) trilobites and agnostid arthropods from the Manuels River Formation, Avalonian New Brunswick: bracketing the green–black facies boundary2
- Biogeographical significance of Cambrian trilobites from the Carolina slate belt2
- The Cambrian of SW Wales: Towards a United Avalonian Stratigraphy1
- Revision of the middle Cambrian trilobite Agnostus acadicus Hartt1
- New fossils sites in the Jince Formation (Middle Cambrian, Bohemia)1
- The Middle Cambrian of Bornholm, Denmark: A stratigraphical revision of the Lower Alum Shale and associated anthraconites1
Each of the 35 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. 1 further reference is not listed. 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 Tomagnostus 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 Tomagnostus, or no answer at all. This entry cannot say which.
No 3D scan of Tomagnostus 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 itPtychagnostidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Howell 1935