Hedenstroemia kossmati

Yale Peabody Museum · CC0 · via GBIF. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- HedenstroemiaPBDB
- Diet
- carnivorePBDB, for Ceratitida
- Life habit
- nektonicPBDB, for Ceratitida
- Motility
- actively mobilePBDB, for Ceratitida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 5 million years on record.
Every occurrence read is dated to somewhere between 251.902 Mya and 247 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Hedenstroemia kossmati on record, most of them in the Early Triassic. 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
12 occurrences- Early Triassic100%
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
3 formations
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The named rock units Hedenstroemia kossmati has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Hedenstroemia kossmati and its relatives
Early TriassicWhere Hedenstroemia kossmati and its relatives were recorded in the Early Triassic.
Found in the same rock
75 taxa- Aspenites acutus6 sites
- Inyoites oweni6 sites
- Lanceolites compactus6 sites
- Meekoceras gracilitatis6 sites
- Wyomingites aplanatus6 sites
- Pseudosageceras multilobatum5 sites
- Abrekites arthaberi4 sites
- Dieneroceras dieneri4 sites
- Guodunites hooveri4 sites
- Juvenites dieneri4 sites
- Parussuria compressa4 sites
- Submeekoceras mushbachanum4 sites
- Anaflemingites russelli3 sites
- Churkites noblei3 sites
- Confusionella loczyi3 sites
- Cordillerites angulatus3 sites
- Euflemingites cirratus3 sites
- Juvenites septentrionalis3 sites
- Juvenites thermarum3 sites
- Lanceolites bicarinatus3 sites
- Meekoceras cristatum3 sites
- Paranannites aspenensis3 sites
- Pseudaspidites wheeleri3 sites
- Xenoceltites cordilleranus3 sites
The Paleobiology Database records 11 sites for Hedenstroemia kossmati, 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- Smithian ammonoid faunas from Utah: implications for Early Triassic biostratigraphy, correlation and basinal paleogeography7
- Lower Triassic ammonoids of North America4
- The Triassic cephalopod genera of America1
Each of the 12 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Hedenstroemia kossmati
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Hedenstroemia kossmati 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 itHedenstroemia through timeFormations of the Early TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hyatt and Smith 1905)