Idiomesus
No picture of Idiomesus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Idiomesus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PtychaspididaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Vision
- blindPBDB
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 2 million years on record.
The record covers at least 488.9 Mya to 486.85 Mya. No occurrence read is dated outside 497 Mya to 477.1 Mya.
71 occurrences of Idiomesus 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
71 occurrences- Cambrian93%
- Ordovician7%
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
16 formations
- Signal Mountain Limestone Formation21
- Shallow Bay Formation · Cow Head Group10
- Wilberns Formation · Moore Hollow Group9
- Bison Creek Formation6
- Notch Peak Formation5
- Rabbitkettle Formation4
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The named rock units Idiomesus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Idiomesus and its relatives
CambrianWhere Idiomesus and its relatives were recorded in the Cambrian.
Found in the same rock
210 taxa- Stenopilus latus14 sites
- Euptychaspis kirki12 sites
- Eurekia eos12 sites
- Calvinella8 sites
- Monocheilus7 sites
- Plethopeltis7 sites
- Bayfieldia simata6 sites
- Bowmania americana6 sites
- Briscoia llanoensis6 sites
- Calvinella tenuisculpta6 sites
- Eurekia6 sites
- Prosaukia serotina6 sites
- Rasettia wichitaensis6 sites
- Saukiella6 sites
- Triarthropsis6 sites
- Larifugula leonensis5 sites
- Meniscocoryphe platycephala5 sites
- Plethometopus obtusus5 sites
- Zacompsus5 sites
- Acheilops masonensis4 sites
- Bynumina vescula4 sites
- Ellipsocephaloides4 sites
- Euptychaspis4 sites
- Euptychaspis lawsonensis4 sites
The Paleobiology Database records 58 sites for Idiomesus, 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
20 references- Late Cambrian and earliest Ordovician trilobites, Timbered Hills and Lower Arbuckle Groups, Western Arbuckle Mountains, Murray County, Oklahom21
- Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada10
- Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta9
- Trilobites of the Upper Cambrian Ptychaspid Biomere Wilberns Formation, central Texas5
- Late Cambrian ptychaspidid trilobites from western Utah: implications for trilobite systematics and biostratigraphy4
- Sunwaptan and Ibexian (Upper Cambrian-Lower Ordovician) trilobites of the Rabbitkettle Formation, Mountain River region, northern Mackenzie Mountains, northwest Canada4
- Trilobites from the upper part of the Deadwood Formation (Upper Franconian and Trempealeauan stages, Upper Cambrain), Black Hills, South Dakota3
- The Moore Hollow Group of Central Texas3
- A Late Cambrian (Sunwaptan) Silicified Trilobite Fauna from Nevada1
- Cambrian-Ordovician boundary interval extinctions: Implications of revised trilobite and brachiopod data from Mount Wilson, Alberta, Canada1
- Uppermost Cambrian slope deposits at Highgate Gorge, Vermont: a minor miscorrelation with major consequences for conodont - and trilobite - based chronocorrelation1
- Stratigraphy and correlation of the Cambro-Ordovician Cow Head Group, western Newfoundland1
Each of the 71 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. 8 further references are 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 Idiomesus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Idiomesus, or no answer at all. This entry cannot say which.
No 3D scan of Idiomesus 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 itPtychaspididae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Raymond 1924