Gabriceraurus
Gabriceraurus is a trilobite in the order Phacopida, that existed during the upper Ordovician in what is now Canada. It was described by Pribyl and Vanek in 1985, and the type species is Gabriceraurus gabrielsi, which was originally described under the genus Ceraurus by Ludvigsen in 1979. The type locality was the Esbataottine Formation in the Northwest Territories.

Spoonkymonkey · CC BY-SA 4.0 · via Wikipedia/Commons. 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
- CheiruridaePBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 5.6 million years on record.
The record covers at least 456.6 Mya to 451 Mya. No occurrence read is dated outside 461.1 Mya to 445.2 Mya.
30 occurrences of Gabriceraurus 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
30 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
18 formations
- Bobcaygeon Formation · Simcoe Group4
- Verulam Formation · Simcoe Group4
- Esbataottine Formation3
- Grand Detour Formation · Platteville Group2
- Mifflin Formation · Platteville Group2
- Pecatonica Formation · Platteville Group2
Loading coastlines…
The named rock units Gabriceraurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gabriceraurus and its relatives
OrdovicianWhere Gabriceraurus and its relatives were recorded in the Ordovician.
Found in the same rock
465 taxa- Hesperorthis tricenaria13 sites
- Doleroides12 sites
- Amphilichas11 sites
- Illaenus11 sites
- Bumastus (Bumastoides) milleri10 sites
- Isotelus simplex10 sites
- Bathyurus (Raymondites) longispinus9 sites
- Glyptorthis bellarugosa9 sites
- Oepikina minnesotensis9 sites
- Sceptaspis lincolnensis9 sites
- Anazyga recurvirostra8 sites
- Ceraurinella8 sites
- Hormotoma gracilis8 sites
- Isotelus gigas8 sites
- Paucicrura rogata8 sites
- Rafinesquina8 sites
- Rhynchotrema increbescens8 sites
- Rostricellula minnesotensis8 sites
- Sowerbyella (Sowerbyella) sericea8 sites
- Sowerbyella curdsvillensis8 sites
- Acanthocrania7 sites
- Acanthocrania setigera7 sites
- Basilicus (Basiliella)7 sites
- Calyptaulax7 sites
The Paleobiology Database records 30 sites for Gabriceraurus, 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
10 references- Palaeozoic geology of the Lake Simcoe Area, Ontario9
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area6
- Platteville and Decorah Trilobites from Illinois and Wisconsin4
- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie4
- Trilobites from the Upper Stinchar Limestone (Ordovician) of the Girvan District, Ayrshire2
- A new marrellomorph arthropod from southern Ontario: a rare case of soft-tissue preservation on a Late Ordovician open marine shelf1
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities1
- Trilobites from the Long Point Group (Ordovician), Port au Port Peninsula, southwestern Newfoundland1
- Ordovician formations and faunas, southern Mackenzie Mountains1
- The Palaeozoic Outlier of Lake Timiskaming, Ontario and Quebec1
Each of the 30 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 content1
Picture of Gabriceraurus
- Source
- Wikipedia/Commons
- Credit
- Spoonkymonkey
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Gabriceraurus 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCheiruridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pribyl and Vanek 1985