Plaesiacomia
No picture of Plaesiacomia 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 Plaesiacomia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ColpocoryphinaePBDB
- 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 18 million years on record.
The record covers at least 471.3 Mya to 452.8 Mya. No occurrence read is dated outside 477.1 Mya to 445.2 Mya.
69 occurrences of Plaesiacomia 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
69 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
25 formations
- Sarka Formation10
- Fonte da Horta Formation · Cacemes Group6
- Navas de Estena Formation3
- Postolonnec Formation3
- Botella Quartzite Formation3
- Kermeur Formation2
Loading coastlines…
The named rock units Plaesiacomia has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 22 occurrences have no formation on record, which is common for older literature.
Plaesiacomia and its relatives
OrdovicianWhere Plaesiacomia and its relatives were recorded in the Ordovician.
Found in the same rock
373 taxa- Neseuretus tristani17 sites
- Colpocoryphe11 sites
- Glyptarca9 sites
- Eohomalonotus8 sites
- Eohomalonotus sdzuyi8 sites
- Heterorthina kerfornei8 sites
- Kerfornella brevicaudata8 sites
- Neseuretus henkei8 sites
- Placoparia8 sites
- Ectillaenus7 sites
- Myoplusia7 sites
- Colpocoryphe rouaulti6 sites
- Crozonaspis6 sites
- Crozonaspis struvei6 sites
- Kloucekia6 sites
- Modiolopsis6 sites
- Neseuretus6 sites
- Calix5 sites
- Crozonaspis incerta5 sites
- Heterorthina5 sites
- Iberocoryphe verneuili5 sites
- Lardeuxella5 sites
- Praenucula5 sites
- Quadrijugator5 sites
The Paleobiology Database records 67 sites for Plaesiacomia, 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
21 references- Calymenacea (Trilobita) aus dem Ordovizium von Spanien; ihre Biostratigraphie, Oekologie und Systematik22
- New species of the suborder Calymenina Swinnerton, 1915 (Trilobita) from the Barrandian area10
- Trilobites ordoviciens du Massif armoricain6
- The stratigraphy of the Upper Ordovician of central Portugal5
- Estudio bioestratigrafico del Llanvirn y Llandeilo (Dobrotiviense) en la parte meridional de la zona Centroiberica (España)4
- Lyrodesma el autres mollusques bivalves des Quartzites Botella (Ordovicien Mayen) de la Zone Centre-ibérique (Espagne)3
- El Ordovícico Medio del Anti-Atlas marroquí: paleobiodiversidad, actualización bioestratigráfica y correlación2
- Ordovician Tergomya and Gastropoda (Mollusca) of the Anti-Atlas (Morocco)2
- An outline of the stratigraphy and palaeontology of the Ordovician rocks of Central Portugal2
- Phacopidella (Prephacopidella) hupei nov. sp., nouveau trilobite de l'ordovicien du Finistere2
- Apparition soudaine de Protolloydolithus (Trilobita, Trinucleidae) dans l'Ordovicien (Llandeilo) du Massif Armoricain; un essai d'interpretation1
- Les mollusques bivalves et rostroconches Ordoviciens de l’Anti-Atlas marocain: Intérêt paléogéographique de leur inventaire1
Each of the 69 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. 9 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 content0
No picture of Plaesiacomia 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 Plaesiacomia, or no answer at all. This entry cannot say which.
No 3D scan of Plaesiacomia 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 itColpocoryphinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hawle and Corda 1847