Plectrella
No picture of Plectrella was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Plectrella, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PtychaspididaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Asaphida
- Motility
- fast-movingPBDB, for Asaphida
- Vision
- well-developedPBDB, for Ptychaspididae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 14 million years on record.
Every occurrence read is dated to somewhere between 490.2 Mya and 477.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Plectrella on record, most of them in the Cambrian. 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
3 occurrences- Cambrian67%
- Ordovician33%
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
- Rabbitkettle Formation2
- Shallow Bay Formation · Cow Head Group1
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The named rock units Plectrella has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Plectrella and its relatives
CambrianWhere Plectrella and its relatives were recorded in the Cambrian.
Found in the same rock
11 taxa- Elkanaspis futile2 sites
- Micragnostus2 sites
- Pseudagnostus planulatus2 sites
- Tatonaspis2 sites
- Bowmania americana1 site
- Eurekia1 site
- Eurekia ulrichi1 site
- Kathleenella1 site
- Kathleenella subula1 site
- Phoreotropsis cf. puteatus1 site
- Zacompsus1 site
The Paleobiology Database records 2 sites for Plectrella, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Sunwaptan and Ibexian (Upper Cambrian-Lower Ordovician) trilobites of the Rabbitkettle Formation, Mountain River region, northern Mackenzie Mountains, northwest Canada2
- Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada1
Each of the 3 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Plectrella was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Plectrella, or no answer at all. This entry cannot say which.
No 3D scan of Plectrella 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 itPtychaspididae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ludvigsen and Westrop 1989