Holmdalia tubercula
No picture of Holmdalia tubercula 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 Holmdalia tubercula, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HolmdaliaPBDB
- Diet
- carnivorePBDB, for Trilobita
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Marjumiidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 504.5 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Holmdalia tubercula 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
5 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
3 formations
- Holm Dal Formation · Tavsens Iskappe Group3
- Rabbitkettle Formation1
- Shallow Bay Formation1
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The named rock units Holmdalia tubercula has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Holmdalia tubercula and its relatives
CambrianWhere Holmdalia tubercula and its relatives were recorded in the Cambrian.
Found in the same rock
69 taxa- Kormagnostus seclusus4 sites
- Modocia4 sites
- Onchonotopsis4 sites
- Proagnostus bulbus4 sites
- Bolaspidella stymacantha3 sites
- Bynumia3 sites
- Catillicephala rotunda3 sites
- Cedaria3 sites
- Conopolus granulus3 sites
- Durinia3 sites
- Hemirhodon3 sites
- Marjumia3 sites
- Oidalagnostus trispinifer3 sites
- Tomagnostella exsculpta3 sites
- Agnostus2 sites
- Balderia2 sites
- Blountia2 sites
- Crepicephalus2 sites
- Cryptoderaspis metisensis2 sites
- Dorispira holmdalense2 sites
- Dorispira pearylandica2 sites
- Elrathia2 sites
- Olenoides2 sites
- Pearylandia2 sites
The Paleobiology Database records 5 sites for Holmdalia tubercula, 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
1 referenceEach of the 5 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 Holmdalia tubercula 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 Holmdalia tubercula, or no answer at all. This entry cannot say which.
No 3D scan of Holmdalia tubercula 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 itHolmdalia through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Westrop and Dengler 2017