Hemiarges leviculus
No picture of Hemiarges leviculus 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 Hemiarges leviculus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HemiargesPBDB
- Diet
- carnivorePBDB, for Lichida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Lichidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 3.6 million years on record.
Every occurrence read is dated to somewhere between 453.8 Mya and 450.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Hemiarges leviculus 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
2 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
2 formations
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The named rock units Hemiarges leviculus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Hemiarges leviculus and its relatives
OrdovicianWhere Hemiarges leviculus and its relatives were recorded in the Ordovician.
Found in the same rock
67 taxa- Hemiarges paulianus2 sites
- Acanthoparypha goniopyga1 site
- Anataphrus1 site
- Ancistrorhyncha1 site
- Aparchites1 site
- Apianurus1 site
- Bairdiocypris1 site
- Bolbopisthia1 site
- Boreadorthis1 site
- Borealaspis biformis1 site
- Borealaspis whittakerensis1 site
- Bumastoides1 site
- Calyptaulax1 site
- Ceratopsis1 site
- Ceraurinella brevispina1 site
- Ceraurinus1 site
- Ceraurus globulobatus1 site
- Ceraurus mackenziensis1 site
- Chasmops1 site
- Cybeloides1 site
- Cyphoproetus1 site
- Denella cumera1 site
- Dicranella1 site
- Dimeropyge1 site
The Paleobiology Database records 2 sites for Hemiarges leviculus, 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
2 references- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie1
- The fauna of the Kimmswick limestone of Missouri and Illinois1
Each of the 2 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. 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 Hemiarges leviculus 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 Hemiarges leviculus, or no answer at all. This entry cannot say which.
No 3D scan of Hemiarges leviculus 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 itHemiarges through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bradley 1930