Borealaspis biformis
No picture of Borealaspis biformis 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 Borealaspis biformis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- BorealaspisPBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 7.7 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
11 occurrences of Borealaspis biformis 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
11 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
1 formation
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The named rock units Borealaspis biformis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Borealaspis biformis and its relatives
OrdovicianWhere Borealaspis biformis and its relatives were recorded in the Ordovician.
Found in the same rock
87 taxa- Krausella7 sites
- Eurychilina5 sites
- Aparchites4 sites
- Bolbopisthia4 sites
- Ceratopsis4 sites
- Diplopsis socialis4 sites
- Bairdiocypris3 sites
- Bumastoides3 sites
- Ceraurinus3 sites
- Cyphoproetus3 sites
- Dolichoharpes3 sites
- Hesperorthis3 sites
- Schmidtella3 sites
- Sphaerocoryphe robusta3 sites
- Acanthoparypha goniopyga2 sites
- Calyptaulax2 sites
- Ceraurinella brevispina2 sites
- Cybeloides2 sites
- Dicranella2 sites
- Escharopora2 sites
- Glyptorthis2 sites
- Holtedahlina sulcata2 sites
- Isotelus2 sites
- Milleratia2 sites
The Paleobiology Database records 11 sites for Borealaspis biformis, 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- New cheirurinid trilobites from the lower Whittaker Formation (Ordovician), southern Mackenzie Mountains8
- A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie3
Each of the 11 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Borealaspis biformis 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 Borealaspis biformis, or no answer at all. This entry cannot say which.
No 3D scan of Borealaspis biformis was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itBorealaspis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ludvigsen 1976