Isotelus
Searched as Homotelus lenaensis. The Paleobiology Database treats Isotelus as the accepted name.
via iDigBio · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- IsotelinaePBDB
- 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 12 million years on record.
Every occurrence read is dated to somewhere between 469.4 Mya and 458.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Isotelus 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
2 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
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The named rock units Isotelus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Isotelus and its relatives
OrdovicianWhere Isotelus and its relatives were recorded in the Ordovician.
Found in the same rock
1,422 taxa- Rafinesquina74 sites
- Strophomena57 sites
- Zygospira modesta49 sites
- Anazyga recurvirostra47 sites
- Sowerbyella44 sites
- Glyptorthis bellarugosa42 sites
- Lophospira41 sites
- Ambonychia40 sites
- Flexicalymene40 sites
- Hesperorthis tricenaria40 sites
- Paucicrura rogata38 sites
- Platystrophia37 sites
- Escharopora36 sites
- Hallopora35 sites
- Rafinesquina trentonensis35 sites
- Zygospira35 sites
- Leperditia32 sites
- Petrocrania32 sites
- Ctenodonta31 sites
- Tetradium31 sites
- Liospira30 sites
- Rhynchotrema30 sites
- Trepostomata30 sites
- Conularia29 sites
The Paleobiology Database records 952 sites for Isotelus, and this reads 240 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- Ordovician sediments in the southeastern Siberian Platform: lithostratigraphy and ostracod zoning1
- Ordovician siberian Platform: Fauna and stratigraphy of the Lena Facial Zone; Novosibirski; Nauka Sib. Birch1
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. 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 content2
Picture of Isotelus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
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 itIsotelinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Raymond 1920