Isorthoceras junceum
No picture of Isorthoceras junceum 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 Isorthoceras junceum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IsorthocerasPBDB
- Diet
- carnivorePBDB, for Orthocerida
- Life habit
- nektonicPBDB, for Orthocerida
- Motility
- actively mobilePBDB, for Orthocerida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Orthocerida
Time the record covers
At least 5 million years on record.
The record covers at least 450.2 Mya to 445.2 Mya. No occurrence read is dated outside 457.3 Mya to 443.1 Mya.
22 occurrences of Isorthoceras junceum 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
22 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
14 formations
- Dunleith Formation · Galena Group8
- Ion Formation · Galena Group2
- Platteville Formation1
- Decorah Shale Formation1
- Cummingsville Formation1
- Prosser Limestone Formation1
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The named rock units Isorthoceras junceum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Isorthoceras junceum and its relatives
OrdovicianWhere Isorthoceras junceum and its relatives were recorded in the Ordovician.
Found in the same rock
306 taxa- Michelinoceras20 sites
- Manitoulinoceras18 sites
- Whitfieldoceras17 sites
- Centrocyrtoceras16 sites
- Metaspyroceras16 sites
- Diestoceras15 sites
- Cyrtocerina14 sites
- Orthoceras14 sites
- Tripteroceras14 sites
- Cameroceras13 sites
- Probillingsites11 sites
- Probillingsites welleri11 sites
- Endoceras10 sites
- Kionoceras decorahense10 sites
- Westonoceras10 sites
- Teichertoceras9 sites
- Gonioceras8 sites
- Oncoceras8 sites
- Endoceras proteiforme7 sites
- Polygrammoceras7 sites
- Actinoceras6 sites
- Beloitoceras6 sites
- Gorbyoceras6 sites
- Redpathoceras6 sites
The Paleobiology Database records 22 sites for Isorthoceras junceum, 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
3 references- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area20
- The cephalopods of Boda Limestone, Late Ordovocian, of Dalarna, Sweden1
- Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationships1
Each of the 22 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 Isorthoceras junceum 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 Isorthoceras junceum, or no answer at all. This entry cannot say which.
No 3D scan of Isorthoceras junceum 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 itIsorthoceras through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)