Trinodus agnostiformis
No picture of Trinodus agnostiformis 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 Trinodus agnostiformis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TrinodusPBDB
- Diet
- detritivorePBDB, for Agnostida
- Life habit
- epifaunalPBDB, for Agnostida
- Motility
- slow-movingPBDB, for Agnostida
- Vision
- blindPBDB, for Metagnostidae
Time the record covers
At most 5.4 million years on record.
Every occurrence read is dated to somewhere between 458.2 Mya and 452.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Trinodus agnostiformis 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
5 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
2 formations
- Campile Formation · Duncannon Group4
- Sularp Formation1
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The named rock units Trinodus agnostiformis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Trinodus agnostiformis and its relatives
OrdovicianWhere Trinodus agnostiformis and its relatives were recorded in the Ordovician.
Found in the same rock
74 taxa- Allolichas laxatus4 sites
- Flexicalymene4 sites
- Tretaspis4 sites
- Calyptaulax3 sites
- Conulariida3 sites
- Cybelinae3 sites
- Gastropoda3 sites
- Remopleurides3 sites
- Ampyx2 sites
- Bivalvia2 sites
- Crinoidea2 sites
- Dalmanellida indet.2 sites
- Oanduporella2 sites
- Orthoconida indet.2 sites
- Strophomenida2 sites
- Aegiria1 site
- Amphilichas1 site
- Ampyxina1 site
- Anisopleurella1 site
- Asaphus (Neoasaphus) glabratus1 site
- Brachypleura sexlineata1 site
- Bryozoa1 site
- Bucania erratica1 site
- Cephalopoda1 site
The Paleobiology Database records 5 sites for Trinodus agnostiformis, 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- Trilobite faunas of the Duncannon Group: Caradoc stratigraphy, environments and palaeobiogeography of the Leinster Terrane, Ireland4
- Swedish Late Ordovician marine benthic assemblages and their bearing on brachiopod zoogeography1
Each 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. 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 Trinodus agnostiformis 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 Trinodus agnostiformis, or no answer at all. This entry cannot say which.
No 3D scan of Trinodus agnostiformis 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 itTrinodus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. McCoy 1846