Groenwallia microphthalma
No picture of Groenwallia microphthalma 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 Groenwallia microphthalma, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GroenwalliaPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Andrarinidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 7.5 million years on record.
Every occurrence read is dated to somewhere between 504.5 Mya and 497 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Groenwallia microphthalma on record, most of them in the Cambrian. 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
4 occurrences- Cambrian100%
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 Groenwallia microphthalma has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Groenwallia microphthalma and its relatives
CambrianWhere Groenwallia microphthalma and its relatives were recorded in the Cambrian.
Found in the same rock
20 taxa- Valenagnostus marginatus3 sites
- Acidusus aculeatus2 sites
- Glaberagnostus bituberculatus2 sites
- Glaberagnostus cicer2 sites
- Goniagnostus nathorsti2 sites
- Lejopyge laevigatus2 sites
- Megagnostus glandiformis2 sites
- Proampyx acuminatus2 sites
- Solenopleura brachymetopa2 sites
- Acadagnostus ferox1 site
- Agnostida1 site
- Andrarina costata1 site
- Diplorrhina quadrata1 site
- Opsidiscus bilobatus1 site
- Paradoxides forchhammeri1 site
- Proampyx aculeatus1 site
- Proampyx anceps1 site
- Proampyx difformis1 site
- Tomagnostella exsculpta1 site
- Trilobita1 site
The Paleobiology Database records 4 sites for Groenwallia microphthalma, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Middle Cambrian agnostoids and trilobites from the Lower Allochthon, Swedish Caledonides3
- Cambrian and Ordovician fossils from the Hardangervidda Group, Haukelifjell, southern Norway1
Each of the 4 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 Groenwallia microphthalma 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 Groenwallia microphthalma, or no answer at all. This entry cannot say which.
No 3D scan of Groenwallia microphthalma 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 itGroenwallia through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Angelin 1851)