Nostoceras
Nostoceras is an extinct genus of ammonites. The genus name comes from Ancient Greek νόστος (nóstos), meaning "return", and κέρας (céras), meaning "horn", named as such by Alpheus Hyatt because the species' shell bends back on itself.
Mr Fink ( talk ) · CC BY-SA 3.0 · via Wikipedia/Commons. 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
- NostoceratidaePBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Ammonoidea
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 11 million years on record.
The record covers at least 83.6 Mya to 72.2 Mya. No occurrence read is dated outside 93.9 Mya to 66 Mya.
204 occurrences of Nostoceras on record, most of them in the Late Cretaceous. 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
204 occurrences- Late Cretaceous100%
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
34 formations
- Saratoga Chalk Formation · Navarro Group36
- Nacatoch Sand Formation32
- Pierre Shale Formation · Montana Group11
- Shinarish Formation8
- Navesink Formation6
- Neylandville Marl Formation5
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The named rock units Nostoceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 further formations hold fewer occurrences each and are not listed. 56 occurrences have no formation on record, which is common for older literature.
Nostoceras and its relatives
Late CretaceousWhere Nostoceras and its relatives were recorded in the Late Cretaceous.
Found in the same rock
606 taxa- Inoceramus20 sites
- Baculites claviformis14 sites
- Cirroceras conradi14 sites
- Baculites13 sites
- Cymbophora13 sites
- Baculites ovatus12 sites
- Hoploscaphites pumilus12 sites
- Solenoceras texanum12 sites
- Baculites undatus11 sites
- Didymoceras11 sites
- Granocardium11 sites
- Legumen ellipticum11 sites
- Turritella trilira11 sites
- Lewyites oronensis10 sites
- Anchura9 sites
- Corbula9 sites
- Glossus9 sites
- Nemodon9 sites
- Nuculana9 sites
- Tenea9 sites
- Cardium8 sites
- Eutrephoceras planoventer8 sites
- Gyrodes8 sites
- Liopistha protexta8 sites
The Paleobiology Database records 143 sites for Nostoceras, 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
40 references- Upper Campanian-Maastrichtian ammonites (Nostoceratidae, Diplomoceratidae) from Tercis les Bains (Landes, France)41
- The larger invertebrate fossils of the Navarro group of Texas37
- Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas36
- Heteromorph ammonites from the Upper Campanian (Upper Cretaceous) Baculites cuneatus and Baculites reesidei zones of the Pierre Shale in Colorado, USA10
- Upper Campanian (Cretaceous) ammonites from the Shinarish Formation, Djebel Sinjar, northwest Iraq8
- Atabekyan and Khakimov, 19767
- Additions to the ammonite fauna of the Upper Cretaceous Navesink Formation of New Jersey6
- Cretaceous ammonites and nautiloids from Angola6
- Campanian ammontes from the Annona Chalk near Yancy, Arkansas4
- Maastrichtian heteromorph ammonites from the Carnarvon Basin, Western Australia4
- Late Cretaceous (Campanian and Maastrichtian) ammonites from Awaji Island, southwest Japan4
- Maastrichtian ammonites from the United Arab Emirates-Oman border region3
Each of the 204 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. 28 further references are 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 content2
Picture of Nostoceras
- Source
- Wikipedia/Commons
- Credit
- Mr Fink ( talk )
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Nostoceras”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itNostoceratidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1894