Jeffersonia jenni
No picture of Jeffersonia jenni 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 jenni, 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 32 million years on record.
Every occurrence read is dated to somewhere between 488.9 Mya and 457.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
31 occurrences of Jeffersonia jenni 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
31 occurrences- Cambrianunder 1%
- 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
4 formations
- Catoche Formation · St. George Group17
- Boat Harbour Formation · St. George Group10
- Kindblade Formation3
- Cotter Formation1
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The named rock units Jeffersonia jenni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Jeffersonia jenni and its relatives
OrdovicianWhere Jeffersonia jenni and its relatives were recorded in the Ordovician.
Found in the same rock
93 taxa- Bolbocephalus convexus24 sites
- Petigurus nero19 sites
- Isoteloides peri14 sites
- Benthamaspis conica13 sites
- Ischyrotoma anataphra13 sites
- Bathyurellus abruptus12 sites
- Uromystrum affine11 sites
- Catochia ornata10 sites
- Strigigenalis caudata10 sites
- Jeffersonia timon9 sites
- Grinnellaspis newfoundlandensis8 sites
- Strigigenalis brevicaudata8 sites
- Strotactinus insularis8 sites
- Isoteloides canalis7 sites
- Petigurus7 sites
- Punka flabelliformis7 sites
- Bathyurellus platypus6 sites
- Benthamaspis gibberula6 sites
- Benthamaspis5 sites
- Brachiopoda5 sites
- Euchasma blumenbachi5 sites
- Illaenus5 sites
- Ischyrotoma parallela5 sites
- Maclurites5 sites
The Paleobiology Database records 30 sites for Jeffersonia jenni, 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
9 references- 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 Newfoundland10
- Trilobite biostratigraphy and correlation of the Kindblade Formation (Lower Ordovician) of Carter and Kiowa Counties, Oklahoma4
- Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland4
- The rostroconch mollusc Euchasma Billings, 1865 from the Lower Ordovician Catoche Formation, western Newfoundland3
- Trilobite and Conodont Biostratigraphy of the St. George Group, Eddies Cove west area, Western Newfoundland3
- Cambrian-Ordovician biostratigraphic investigations, Great Northern Peninsula, western Newfoundland3
- Macropaleontological investigation of the Upper St. George Group, West Isthmus Bay to East Bay section, Port au Port Peninsula, Western Newfoundland2
- The upper St. George Group, western Port au Port Penensula: lithostratigraphy, biostratigraphy, depositional environments and regional implications1
- The stratigraphy of some Lower Ordovician formations of the Ozark uplift1
Each of the 31 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Jeffersonia jenni 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 jenni, or no answer at all. This entry cannot say which.
No 3D scan of Jeffersonia jenni 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 itJeffersonia through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cullison 1944