Bathyurus extans

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
- BathyurusPBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Bathyuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 4.4 million years on record.
The record covers at least 458.2 Mya to 453.8 Mya. No occurrence read is dated outside 471.3 Mya to 449.6 Mya.
18 occurrences of Bathyurus extans 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
18 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
7 formations
- Esbataottine Formation5
- Sunblood Formation4
- Carters Limestone Formation1
- Gull River Formation · Simcoe Group1
- Bobcaygeon Formation · Simcoe Group1
- Lehman Fm. Formation1
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The named rock units Bathyurus extans has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Bathyurus extans and its relatives
OrdovicianWhere Bathyurus extans and its relatives were recorded in the Ordovician.
Found in the same rock
181 taxa- Leperditia7 sites
- Calyptaulax6 sites
- Doleroides6 sites
- Strophomena6 sites
- <Isotelids>5 sites
- Brachiopoda5 sites
- Ceraurus5 sites
- Leperditella5 sites
- Oepikina5 sites
- Ostracoda5 sites
- Cyrtodonta4 sites
- Anazyga recurvirostra3 sites
- Bumastus3 sites
- Hormotoma gracilis3 sites
- Lambeophyllum profundum3 sites
- Raphistomina lapicida3 sites
- Stictopora3 sites
- Tetradium3 sites
- Zygospira3 sites
- Actinoceras2 sites
- Cyrtostropha salteri2 sites
- Eoleperditia2 sites
- Escharopora subrecta2 sites
- Gabriceraurus dentatus2 sites
The Paleobiology Database records 18 sites for Bathyurus extans, 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
5 references- Ordovician formations and faunas, southern Mackenzie Mountains9
- Community Ecology of the Middle Ordovician Black River Group of New York State4
- Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada2
- Palaeozoic geology of the Lake Simcoe Area, Ontario2
- Pre-Chattanooga stratigraphy in Central Tennessee1
Each of the 18 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 content1

Picture of Bathyurus extans
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Bathyurus extans 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 itBathyurus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)