Calymenidius
Calymenidius is an extinct genus of trilobites.
No picture of Calymenidius was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Calymenidius, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- LonchocephalidaePBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Lonchocephalidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 15 million years on record.
The record covers at least 486.85 Mya to 471.3 Mya. No occurrence read is dated outside 497 Mya to 457.3 Mya.
3 occurrences of Calymenidius on record. 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
3 formations
- Rabbitkettle Formation1
- Table Cove Formation · Table Head Group1
- Survey Peak Formation1
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The named rock units Calymenidius has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Found in the same rock
54 taxa- <cybelinid>1 site
- Ampyxoides semicostatus1 site
- Apatokephaloides1 site
- Bayfieldia1 site
- Bellaspidella1 site
- Blosyropsis billingsi1 site
- Carolinites1 site
- Celmus1 site
- Ceraurinella polydorus1 site
- Corbinia horatio1 site
- Cybelurus mirus1 site
- Cydonocephalus1 site
- Endymionia schucherti1 site
- Galbagnostus galba1 site
- Geragnostus (Novoagnostus) longicollis1 site
- Geragnostus fabius1 site
- Harpides atlanticus1 site
- Highgatella1 site
- Idiomesus intermedius1 site
- Illaenus1 site
- Illaenus consimilis1 site
- Illaenus gelasinus1 site
- Ischyrophyma tumida1 site
- Ischyrotoma1 site
The Paleobiology Database records 3 sites for Calymenidius, 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
3 references- Sunwaptan and Ibexian (Upper Cambrian-Lower Ordovician) trilobites of the Rabbitkettle Formation, Mountain River region, northern Mackenzie Mountains, northwest Canada1
- Lower Ordovician Survey Peak and Outram Formations, southern Rocky Mountains of Alberta1
- Trilobites of the Ordovician Table Head Formation, western Newfoundland1
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 Calymenidius was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Calymenidius, or no answer at all. This entry cannot say which.
No 3D scan of Calymenidius 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.
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 itLonchocephalidae through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rasetti 1944