Calymenella

Calymenella is a genus of trilobites in the order Phacopida, which existed in what is now France during the upper Ordovician. It was described by Bergeron in 1890, and the type species is Calymenella boisseli. The species was described from the Glauzy Formation in the Montagne Noire mountain range.

Calymenella

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
EohomalonotinaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Homalonotidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 21 million years on record.

The record covers at least 459.7 Mya to 438.6 Mya. No occurrence read is dated outside 468 Mya to 432.9 Mya.

Ordovician — about 44 of 48 occurrencesOrdovicianSilurian — about 4 of 48 occurrencesSilurian469–467 Mya — about 0.1 occurrences467–466 Mya — about 0.1 occurrences466–465 Mya — about 0.1 occurrences465–464 Mya — about 0.1 occurrences464–463 Mya — about 0.4 occurrences463–461 Mya — about 0.6 occurrences461–460 Mya — about 1 occurrence460–459 Mya — about 3 occurrences459–458 Mya — about 3 occurrences458–457 Mya — about 3 occurrences457–455 Mya — about 3 occurrences455–454 Mya — about 3 occurrences454–453 Mya — about 3 occurrences453–452 Mya — about 4 occurrences452–450 Mya — about 4 occurrences450–449 Mya — about 3 occurrences449–448 Mya — about 2 occurrences448–447 Mya — about 2 occurrences447–446 Mya — about 2 occurrences446–444 Mya — about 2 occurrences444–443 Mya — about 2 occurrences443–442 Mya — about 0.3 occurrences442–441 Mya — about 0.2 occurrences441–439 Mya — about 0.4 occurrences439–438 Mya — about 0.5 occurrences438–437 Mya — about 0.6 occurrences437–436 Mya — about 0.6 occurrences436–435 Mya — about 0.6 occurrences435–433 Mya — about 0.6 occurrences433–432 Mya — about 0.3 occurrences459.7 Mya438.6 Mya468.7 Mya432.2 Mya

48 occurrences of Calymenella 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

48 occurrences

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

24 formations

Upper Ktaoua — 30.42°N, 5.35°WUpper Ktaoua — 30.72°N, 5.60°WUpper Ktaoua — 31.08°N, 5.25°WUpper Ktaoua — 30.77°N, 5.66°WUpper Ktaoua — 30.00°N, 5.50°WSaint-Germain-sur-Ille — 49.50°N, 1.60°WSaint-Germain-sur-Ille — 48.18°N, 1.44°WSaint-Germain-sur-Ille — 48.22°N, 1.70°WLower Ktaoua — 30.00°N, 8.50°WLower Ktaoua — 31.23°N, 4.53°WLower Ktaoua — 31.15°N, 5.10°WPunta Serpeddi — 39.35°N, 9.18°EPunta Serpeddi — 39.92°N, 9.55°ELetna — 50.00°N, 14.00°EZahorany — 50.00°N, 14.00°EGlauzy — 43.00°N, 3.00°EGlauzy — 43.54°N, 3.31°EBancos Mixtos — 39.00°N, 4.00°WBancos Mixtos — 38.78°N, 4.83°WSodus — 43.24°N, 77.02°WSodus — 43.15°N, 75.56°WPortixeddu — 39.23°N, 8.50°ELiben — 49.72°N, 13.57°ELiben — 49.83°N, 13.83°EBohdalec — 50.00°N, 14.00°ETrapiche — 30.00°S, 69.00°WSanta Gertrudis — 25.00°S, 65.00°WSchistes de Morgat — 48.25°N, 4.47°WCabeco do Peao — 39.00°N, 8.00°WGrès de May — 49.00°N, 0.00°ECalymenella Quartzite — 39.41°N, 7.24°WUpper Second Bani — 30.00°N, 8.50°WPizarras Carretera — 39.00°N, 4.00°WQuartzites Botella — 38.00°N, 4.00°WBedinan — 37.28°N, 49.48°ECantera Shale — 38.90°N, 4.06°WKermeur — 48.24°N, 4.46°W

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The named rock units Calymenella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Calymenella and its relatives

Ordovician

Where Calymenella and its relatives were recorded in the Ordovician.

Found in the same rock

366 taxa

The Paleobiology Database records 47 sites for Calymenella, 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

26 references

Each of the 48 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. 14 further references are not listed. 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 Calymenella

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 Calymenella 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 itEohomalonotinae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bergeron 1890