Illaenurus montanensis
No picture of Illaenurus montanensis 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 Illaenurus montanensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IllaenurusPBDB
- Diet
- carnivorePBDB, for Corynexochida
- Life habit
- nektobenthicPBDB, for Corynexochida
- Motility
- actively mobilePBDB, for Corynexochida
- Vision
- well-developedPBDB, for Illaenuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 4.6 million years on record.
Every occurrence read is dated to somewhere between 493.5 Mya and 488.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Illaenurus montanensis 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
2 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 Illaenurus montanensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Illaenurus montanensis and its relatives
CambrianWhere Illaenurus montanensis and its relatives were recorded in the Cambrian.
Found in the same rock
30 taxa- Bayfieldia binodosa2 sites
- Dikelocephalus minnesotensis2 sites
- Acheilops1 site
- Bowmania lassieae1 site
- Briscoia angustilimba1 site
- Briscoia dalyi1 site
- Calvipelta1 site
- Cherrycreekia benjii1 site
- Clelandia1 site
- Euptychaspis dougali1 site
- Eurekia rintintini1 site
- Glaberaspis scoobydooi1 site
- Hardyia1 site
- Idiomesus1 site
- Idiomesus levisensis1 site
- Illaenurus quadratus1 site
- Kathleenella frontalis1 site
- Keithiella intermedia1 site
- Micragnostus insolitus1 site
- Monocheilus1 site
- Notchpeakia cherrycreekensis1 site
- Peracheilus1 site
- Plethopeltis1 site
- Princetonella1 site
The Paleobiology Database records 2 sites for Illaenurus montanensis, 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
2 references- A Late Cambrian (Sunwaptan) Silicified Trilobite Fauna from Nevada1
- Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta1
Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Illaenurus montanensis 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 Illaenurus montanensis, or no answer at all. This entry cannot say which.
No 3D scan of Illaenurus montanensis 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 itIllaenurus through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1935