Plegagnathus dartoni
No picture of Plegagnathus dartoni 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 Plegagnathus dartoni, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PlegagnathusPBDB
- Diet
- carnivorePBDB, for Conodonta
- Life habit
- nektonicPBDB, for Conodonta
- Motility
- actively mobilePBDB, for Conodonta
- Vision
- well-developedPBDB, for Conodonta
Time the record covers
At most 32 million years on record.
Every occurrence read is dated to somewhere between 458.2 Mya and 426.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
26 occurrences of Plegagnathus dartoni 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
26 occurrences- Ordovician81%
- Silurian19%
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
10 formations
- Allen Bay Formation7
- Turesø Formation4
- Caution Creek Formation · Churchill River Group3
- Vaureal Formation · Jolliet Group2
- Ellis Bay Formation · Jolliet Group2
- Aberdeen Lake Formation2
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The named rock units Plegagnathus dartoni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Plegagnathus dartoni and its relatives
OrdovicianWhere Plegagnathus dartoni and its relatives were recorded in the Ordovician.
Found in the same rock
69 taxa- Drepanoistodus suberectus13 sites
- Panderodus12 sites
- Panderodus unicostatus10 sites
- Panderodus feulneri9 sites
- Aphelognathus pyramidalis8 sites
- Amorphognathus ordovicicus7 sites
- Walliserodus curvatus7 sites
- Belodina6 sites
- Oulodus5 sites
- Panderodus panderi5 sites
- Plectodina5 sites
- Aphelognathus4 sites
- Belodina compressa4 sites
- Panderodus gracilis4 sites
- Pseudooneotodus beckmanni4 sites
- Belodina confluens3 sites
- Gamachignathus3 sites
- Neocoleodus3 sites
- Phragmodus undatus3 sites
- Pseudobelodina vulgaris3 sites
- Staufferella3 sites
- Armenoceras michaudae2 sites
- Bighornia2 sites
- Cordylodus2 sites
The Paleobiology Database records 16 sites for Plegagnathus dartoni, 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- Upper Ordovician – Upper Silurian conodont biostratigraphy, Devon Island and southern Ellesmere Island, Canadian Arctic Islands, with implications for regional stratigraphy, eustasy, and thermal maturation8
- Conodonts from the Upper Ordovician–lower Silurian carbonate platform of North Greenland8
- Late Ordovician- Early Silurian conodont biostratigraphy and thermal maturity, Hudson Bay Basin4
- Conodont biostratigraphy across the Ordovician-Silurian boundary, Ellis Bay Formation, Anticosti Island, Québec4
- A Late Ordovician fossil assemblage from an outlier north of Aberdeen Lake, District of Keewatin2
Each of the 26 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 content0
No picture of Plegagnathus dartoni 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 Plegagnathus dartoni, or no answer at all. This entry cannot say which.
No 3D scan of Plegagnathus dartoni was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itPlegagnathus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stone and Furnish 1959