Pseudomera barrandei

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
- PseudomeraPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Pliomeridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 2.3 million years on record.
The record covers at least 470.3 Mya to 468 Mya. No occurrence read is dated outside 471.3 Mya to 457.3 Mya.
45 occurrences of Pseudomera barrandei 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
45 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
9 formations
- Table Point Formation · Table Head Group16
- Sunblood Formation6
- Antelope Valley Formation · Pogonip Group6
- Table Cove Formation · Table Head Group5
- Oil Creek Formation · Simpson Group4
- Kanosh Shale Formation2
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The named rock units Pseudomera barrandei has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Pseudomera barrandei and its relatives
OrdovicianWhere Pseudomera barrandei and its relatives were recorded in the Ordovician.
Found in the same rock
162 taxa- Illaenus marginalis10 sites
- Acidiphorus spinifer8 sites
- Uromystrum8 sites
- Nileus affinis7 sites
- Illaenus6 sites
- Illaenus fraternus6 sites
- Stegnopsis solitarius6 sites
- Xystocrania perforator6 sites
- Bathyurus mackenziensis5 sites
- Ectenonotus westoni5 sites
- Illaenus alveatus5 sites
- Leperditella5 sites
- Lonchodomas normalis5 sites
- Eoleperditia4 sites
- Galbagnostus galba4 sites
- Nileus scrutator4 sites
- Raymondaspis reticulatus4 sites
- Telephina (Telephina) americana4 sites
- Aparchites3 sites
- Bairdiocypridella3 sites
- Calycocoelia typicalis3 sites
- Calyptaulax incepta3 sites
- Cybelurus mirus3 sites
- Ectoprimitia3 sites
The Paleobiology Database records 45 sites for Pseudomera barrandei, 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
11 references- Middle Ordovician Table Head Formation, western Newfoundland16
- Middle Ordovician (Whiterockian) trilobites from the Sunblood Formation, District of Mackenzie, Canada10
- Simpson Group (Middle Ordovician) trilobites of Oklahoma6
- Trilobites of the Ordovician Table Head Formation, western Newfoundland3
- New fossil localities in the Middle Ordovician Table Point Formation, Bonne Bay Little Pond area, western Newfoundland2
- Middle and Upper(?) Ordovician Rocks of Independence Quadrangle, California2
- Lower Ordovician trilobites from western Utah and eastern Nevadea2
- The Ordovician trilobite Hadrohybus Raymond 1925, and its family relationships1
- Ordovician receptaculitids from California and their significance1
- Zonation and correlation of Canadian and Early Mohawkian series1
- Ordovician Trilobites from Nevada1
Each of the 45 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 Pseudomera barrandei
- 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 Pseudomera barrandei 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 itPseudomera through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Billings 1865)