Isotelus obtusum
No picture of Isotelus obtusum 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 Isotelus obtusum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IsotelusPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Vision
- well-developedPBDB, for Asaphidae
- 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.
8 occurrences of Isotelus obtusum 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
8 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
2 formations
- Valcour Formation · Chazy Group5
- Crown Point Formation · Chazy Group3
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The named rock units Isotelus obtusum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Isotelus obtusum and its relatives
OrdovicianWhere Isotelus obtusum and its relatives were recorded in the Ordovician.
Found in the same rock
56 taxa- Isotelus harrisi5 sites
- Leperditia canadensis5 sites
- Rostricellula plena5 sites
- Mimella vulgaris4 sites
- Multicostella platys4 sites
- Pliomerops canadensis4 sites
- Rafinesquina alternata4 sites
- Bucania sulcatina3 sites
- Raphistoma stamineum3 sites
- Thaleops ovata3 sites
- Basilicus (Basiliella) whittingtoni2 sites
- Calyptaulax annulata2 sites
- Camerella ventricosa2 sites
- Dactylogonia incrassata2 sites
- Eurychilina latimarginata2 sites
- Hibbertia valcourensis2 sites
- Holopea scrutator2 sites
- Lophospira perangulata2 sites
- Maclurites magnus2 sites
- Macrocoelia champlainensis2 sites
- Onychoplecia longirostris2 sites
- Orthidium lamellosum2 sites
- Raphistoma striatum2 sites
- Sphaerexochus parvus2 sites
The Paleobiology Database records 8 sites for Isotelus obtusum, 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 8 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Isotelus obtusum 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 Isotelus obtusum, or no answer at all. This entry cannot say which.
No 3D scan of Isotelus obtusum 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 itIsotelus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Raymond 1905)