Illaenus gelasinus
No picture of Illaenus gelasinus 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 Illaenus gelasinus, 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 14 million years on record.
Every occurrence read is dated to somewhere between 471.3 Mya and 457.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Illaenus gelasinus 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
4 occurrences- Ordovician100%
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
1 formation
- Table Cove Formation · Table Head Group4
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The named rock units Illaenus gelasinus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Illaenus gelasinus and its relatives
OrdovicianWhere Illaenus gelasinus and its relatives were recorded in the Ordovician.
Found in the same rock
49 taxa- Ampyxoides semicostatus4 sites
- Nileus macrops4 sites
- Niobe morrisi4 sites
- Niobe quadraticaudata4 sites
- Porterfieldia fischeri4 sites
- Raymondaspis reticulatus4 sites
- Stegnopsis huttoni4 sites
- Telephina (Telephina) americana4 sites
- <cybelinid>3 sites
- Blosyropsis billingsi3 sites
- Ceraurinella polydorus3 sites
- Cybelurus mirus3 sites
- Galbagnostus galba3 sites
- Geragnostus (Novoagnostus) longicollis3 sites
- Geragnostus fabius3 sites
- Illaenus consimilis3 sites
- Lonchodomas normalis3 sites
- Nileus affinis3 sites
- Peraspis lineolata3 sites
- Robergia schlotheimi3 sites
- Shumardia sagittula3 sites
- Celmus2 sites
- Endymionia schucherti2 sites
- Harpides atlanticus2 sites
The Paleobiology Database records 4 sites for Illaenus gelasinus, 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
1 referenceEach of the 4 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 Illaenus gelasinus 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 Illaenus gelasinus, or no answer at all. This entry cannot say which.
No 3D scan of Illaenus gelasinus 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. Whittington 1965