Jeffersonia timon
No picture of Jeffersonia timon 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 Jeffersonia timon, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- JeffersoniaPBDB
- Diet
- deposit feederPBDB, for Proetida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Bathyuridae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 16 million years on record.
Every occurrence read is dated to somewhere between 483.4 Mya and 468 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
23 occurrences of Jeffersonia timon 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
23 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
- Catoche Formation · St. George Group18
- Kirtonryggen Formation2
- Beauharnois Formation · Beekmantown Group1
- Boat Harbour Formation · St. George Group1
- Wandel Valley Formation1
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The named rock units Jeffersonia timon has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Jeffersonia timon and its relatives
OrdovicianWhere Jeffersonia timon and its relatives were recorded in the Ordovician.
Found in the same rock
90 taxa- Petigurus nero18 sites
- Bathyurellus abruptus16 sites
- Bolbocephalus convexus15 sites
- Ischyrotoma anataphra13 sites
- Benthamaspis conica10 sites
- Strigigenalis caudata10 sites
- Jeffersonia jenni9 sites
- Punka flabelliformis9 sites
- Strotactinus insularis9 sites
- Catochia ornata8 sites
- Euchasma blumenbachi8 sites
- Isoteloides canalis8 sites
- Bathyurellus platypus7 sites
- Benthamaspis gibberula7 sites
- Uromystrum affine7 sites
- Isoteloides peri6 sites
- Uromystrum5 sites
- Catochia glabra4 sites
- Ischyrotoma4 sites
- Petigurus4 sites
- Bolbocephalus kindlei3 sites
- Cassinoceras wortheni3 sites
- Ceratopea canadensis3 sites
- Illaenus3 sites
The Paleobiology Database records 22 sites for Jeffersonia timon, 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
13 references- The rostroconch mollusc Euchasma Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland7
- Early Ordovician trilobite faunas of the Boat Harbour and Catoche Formations (St. George Group) in the Boat-Harbour-Cape Norman area, Great Northern Peninsula, western Newfoundland3
- Lower Ordovician trilobites of the Kirtonryggen Formation, Spitsbergen2
- Trilobite and Conodont Biostratigraphy of the St. George Group, Eddies Cove west area, Western Newfoundland2
- The upper St. George Group, western Port au Port Penensula: lithostratigraphy, biostratigraphy, depositional environments and regional implications1
- Fauna of the lower Beauharnois Formation (Beekmantown Group, Lower Ordovician), Grand île, Quebec1
- Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland1
- Early Ordovician trilobites from the Wandel Valley Formation, eastem North Greenland1
- Cambrian-Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland1
- Preliminary Ordovician trilobite stratigraphy of the Eddies Cove West-Port au Choix area, western Newfoundland1
- Further developments in western Newfoundland Cambro-Ordovician biostratigraphy1
- Early Ordovician trilobites from the Catoche Formation (St. George Group), western Newfoundland1
Each of the 23 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. 1 further reference is not listed. 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 Jeffersonia timon 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 Jeffersonia timon, or no answer at all. This entry cannot say which.
No 3D scan of Jeffersonia timon 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 itJeffersonia through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Billings 1865)