Acernaspis (Eskaspis)
No picture of Acernaspis (Eskaspis) was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Acernaspis (Eskaspis), or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AcernaspisPBDB
- Diet
- carnivorePBDB, for Phacopina
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Phacopidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 1.9 million years on record.
The record covers at least 440.5 Mya to 438.6 Mya. No occurrence read is dated outside 449.5 Mya to 432.9 Mya.
11 occurrences of Acernaspis (Eskaspis) on record, most of them in the Silurian. 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- Ordovician8%
- Silurian92%
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
6 formations
- Wether Law Linn Formation6
- Cock Rig Formation1
- White Head Formation1
- Wood Burn Formation1
- Wood Burn Grits Formation1
- Vtorye Utyosy Formation1
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The named rock units Acernaspis (Eskaspis) has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Acernaspis (Eskaspis) and its relatives
SilurianWhere Acernaspis (Eskaspis) and its relatives were recorded in the Silurian.
Found in the same rock
100 taxa- Encrinurus expansus6 sites
- Cyphoproetus comitilis4 sites
- Echinodermata4 sites
- Eoplectodonta penkillensis4 sites
- Eridotrypa4 sites
- Hecetastoma salteri4 sites
- Lingula4 sites
- Nautiloidea4 sites
- Youngia4 sites
- Atrypa (Atrypa)3 sites
- Coolinia applanata3 sites
- Craspedobolbina3 sites
- Cyphoproetus depressa3 sites
- Dictyocaris3 sites
- Encrinurus3 sites
- Helopora3 sites
- Leonaspis3 sites
- Liospira simulans3 sites
- Machaeridia3 sites
- Pentlandella3 sites
- Ptilodictya3 sites
- Skenidioides lewisii3 sites
- Visbyella visbyensis3 sites
- Anodontopsis2 sites
The Paleobiology Database records 11 sites for Acernaspis (Eskaspis), 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
6 references- Upper Llandovery fossil associations in the Pentland HIlls, Scotland4
- Scottish Silurian trilobites2
- Some Phacopina (Trilobita) from the Silurian of Scotland2
- Ordovician Sedimentary Basin and Paleobiotas of the Gorny Altai1
- Upper Llandovery Trilobites from the Pentland Hills, Scotland1
- Gaspé Peninsula, Percé area1
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. 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 Acernaspis (Eskaspis) was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Acernaspis (Eskaspis), or no answer at all. This entry cannot say which.
No 3D scan of Acernaspis (Eskaspis) 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 itAcernaspis through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Clarkson et al. 1977