Heliomeroides
Heliomeroides is a trilobite in the order Phacopida, that existed during the upper Ordovician in what is now the United States. It was described by Evitt in 1951, and the type species is Heliomeroides teres. The type locality was the Lincolnshire Formation in Virginia.
No picture of Heliomeroides 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 Heliomeroides, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CheiruridaePBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 22 million years on record.
The record covers at least 471.3 Mya to 448.8 Mya. No occurrence read is dated outside 483.4 Mya to 443.1 Mya.
30 occurrences of Heliomeroides 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
30 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
14 formations
- Esbataottine Formation9
- Table Cove Formation · Table Head Group3
- Las Aguaditas Formation3
- Valcour Formation · Chazy Group2
- Sunblood Formation1
- Dounans Limestone Formation1
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The named rock units Heliomeroides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Heliomeroides and its relatives
OrdovicianWhere Heliomeroides and its relatives were recorded in the Ordovician.
Found in the same rock
379 taxa- Dolichoharpes reticulata9 sites
- Ceratocephala triacantheis8 sites
- Holia glabra8 sites
- Walencrinuroides rolfi8 sites
- Chaulistomella7 sites
- Onychoplesia sp.6 sites
- Tetradella6 sites
- Acanthoparypha evitti5 sites
- Amphilichas5 sites
- Aparchites5 sites
- Apianurus parabarbatus5 sites
- Bolbopisthia5 sites
- Bumastoides lenzi5 sites
- Calyptaulax callirachis5 sites
- Ceraurinella nahanniensis5 sites
- Cybeloides cimelia5 sites
- Dimeropyge speyeri5 sites
- Hemiarges turneri5 sites
- Krausella5 sites
- Phorocephala pinguimitra5 sites
- Remopleurides canadensis5 sites
- Remopleurides pattersoni5 sites
- Sphaerexochus5 sites
- Sphaerexochus arenosus5 sites
The Paleobiology Database records 29 sites for Heliomeroides, 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
15 references- Ordovician formations and faunas, southern Mackenzie Mountains4
- Early Middle Ordovician (Chazy) trilobites of New York4
- Ordovician cheirurid trilobites from the Argentine Precordillera3
- Ontogenetic studies of Middle Ordovician trilobites from the Esbataottine Formation, Mackenzie Mountains, Canada3
- Trilobites of the Ordovician Table Head Formation, western Newfoundland3
- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie2
- Silicified Middle Ordovician trilobites from the South Nahanni River Area, District of Mackenzie, Canada2
- The Trilobites of the Chair of Kildare Limestone (Upper Ordovician) of Eastern Ireland. Part I.2
- The Ordovician trilobites from the Iberian Chains in the province of Aragon, NE Spain, 1: The trilobites of the Cystoid Limestone (Ashgill Series)1
- Early Ordovician Dounans Limestone fauna, Highland Border Complex, Scotland1
- Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States1
- Trilobites from the Upper Stinchar Limestone (Ordovician) of the Girvan District, Ayrshire1
Each of the 30 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. 3 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 Heliomeroides 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 Heliomeroides, or no answer at all. This entry cannot say which.
No 3D scan of Heliomeroides 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 itCheiruridae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Evitt 1951