Tretaspis hadelandica
No picture of Tretaspis hadelandica 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 Tretaspis hadelandica, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TretaspisPBDB
- Diet
- suspension feederPBDB, for Trinucleidae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- limitedPBDB, for Tretaspis
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 400 thousand years on record.
The record covers at least 449.2 Mya to 448.8 Mya. No occurrence read is dated outside 453 Mya to 445.2 Mya.
14 occurrences of Tretaspis hadelandica 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
14 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
5 formations
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The named rock units Tretaspis hadelandica has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Tretaspis hadelandica and its relatives
OrdovicianWhere Tretaspis hadelandica and its relatives were recorded in the Ordovician.
Found in the same rock
104 taxa- Stenopareia4 sites
- Arthrorhachis tarda3 sites
- Atractopyge3 sites
- Oxoplecia plicata3 sites
- Panderia3 sites
- Triplesia hintsae3 sites
- Caryocrinites rugatus2 sites
- Cybeloides2 sites
- Eospirigerina sulevi2 sites
- Katastrophomena (Costistrophomena) costata2 sites
- Laticrura erecta2 sites
- Leangella2 sites
- Leptaena2 sites
- Onniella jonesi2 sites
- Platylichas laxatus2 sites
- Prionocheilus2 sites
- Skenidioides craigensis2 sites
- Sowerbyella raegaverensis2 sites
- Stygina2 sites
- Anisopleurella1 site
- Astroproetus1 site
- Boreadorthis sheehani1 site
- Calyptaulax1 site
- Catazyga1 site
The Paleobiology Database records 14 sites for Tretaspis hadelandica, 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
4 references- The trilobite Tretaspis from the upper Ordovician of the Oslo region, Norway8
- Trilobites et Brachiopodes ashgilliens (Ordovicien supérieur) de l'"Assise" de Fosse, Bande de Sambre-Meuse (Belgique)4
- Coronate echinoderms from the Ordovician of the Llanddowror area, South Wales1
- The Ashgill rocks of the Glyn Ceirog district, North Wales1
Each of the 14 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 Tretaspis hadelandica 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 Tretaspis hadelandica, or no answer at all. This entry cannot say which.
No 3D scan of Tretaspis hadelandica 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTretaspis through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stormer 1945