Illaenus utahensis
No picture of Illaenus utahensis 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 Illaenus utahensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IllaenusPBDB
- Diet
- carnivorePBDB, for Corynexochida
- Life habit
- nektobenthicPBDB, for Corynexochida
- Motility
- actively mobilePBDB, for Corynexochida
- Vision
- well-developedPBDB, for Illaenus
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 32 million years on record.
Every occurrence read is dated to somewhere between 488.9 Mya and 457.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
14 occurrences of Illaenus utahensis on record, most of them in the Ordovician. 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
14 occurrences- Cambrianunder 1%
- Ordovician99%
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
3 formations
- Oil Creek Formation · Simpson Group9
- Antelope Valley Formation · Pogonip Group3
- Kanosh Shale Formation2
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The named rock units Illaenus utahensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Illaenus utahensis and its relatives
OrdovicianWhere Illaenus utahensis and its relatives were recorded in the Ordovician.
Found in the same rock
36 taxa- Pseudoolenoides carterensis4 sites
- Anomalorthis2 sites
- Barrandia2 sites
- Bryozoa2 sites
- Cybelopsis2 sites
- Gastropoda2 sites
- Lecanospira2 sites
- Leperditia2 sites
- Nieszkowskia2 sites
- Orthis2 sites
- Pseudomera2 sites
- Pseudoolenoides acicaudus2 sites
- Raymondites2 sites
- Anomalorthis lonensis1 site
- Anomalorthis nevadensis1 site
- Bathyurellus1 site
- Bathyurus angustus1 site
- Bathyurus sunbloodensis1 site
- Desmorthis1 site
- Eoleperditia1 site
- Eurychilina1 site
- Fenestrata1 site
- Kawina1 site
- Laticrura heteropleura1 site
The Paleobiology Database records 14 sites for Illaenus utahensis, 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
4 references- Simpson Group (Middle Ordovician) trilobites of Oklahoma9
- Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada2
- Lower Ordovician trilobites from western Utah and eastern Nevadea2
- Middle and Lower Ordovician Formations in Southernmost Nevada and Adjacent California1
Each of the 14 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 Illaenus utahensis 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 Illaenus utahensis, or no answer at all. This entry cannot say which.
No 3D scan of Illaenus utahensis 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 itIllaenus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hintze 1953