Nannolytoceras polyhelictum
No picture of Nannolytoceras polyhelictum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Nannolytoceras polyhelictum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- NannolytocerasPBDB
- 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 2.3 million years on record.
The record covers at least 170.9 Mya to 168.6 Mya. No occurrence read is dated outside 174.7 Mya to 168.2 Mya.
5 occurrences of Nannolytoceras polyhelictum on record, most of them in the Middle Jurassic. 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
5 occurrences- Middle Jurassic100%
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
1 formation
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The named rock units Nannolytoceras polyhelictum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Nannolytoceras polyhelictum and its relatives
Middle JurassicWhere Nannolytoceras polyhelictum and its relatives were recorded in the Middle Jurassic.
Found in the same rock
47 taxa- Lytoceras eudesianum4 sites
- Calliphylloceras disputabile2 sites
- Holcophylloceras zignodianum2 sites
- Nuculidae2 sites
- Phylloceras trifoliatum2 sites
- Ptychophylloceras2 sites
- Abbasitoides modestus1 site
- Allocosmia1 site
- Alocolytoceras isztimeri1 site
- Cadomites1 site
- Catella caterinae1 site
- Crossostoma1 site
- Diplesioceras1 site
- Discohelix1 site
- Fischeriella1 site
- Hammatoceras1 site
- Lepidotrochus1 site
- Leptosphinctes schmiereri1 site
- Lissoceras oolithicum1 site
- Lytoceras subfrancisci1 site
- Marmolatella1 site
- Masckeites psilacanthoides1 site
- Megalytoceras kasakovae1 site
- Megalytoceras rubescens1 site
The Paleobiology Database records 5 sites for Nannolytoceras polyhelictum, 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- Bajocian (Middle Jurassic) ammonites of stratigraphical and Palaeobiogeographical importance from Mombasa, Kenya, East Africa2
- New species and stratigraphic data on Lower Bajocian (Middle Jurassic) lytoceratids (Ammonoidea) from Lókút, Bakony Mts, Hungary2
- A middle Jurassic bivalve and gastropod fauna from Umbria (Central Italy)1
Each of the 5 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 Nannolytoceras polyhelictum was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Nannolytoceras polyhelictum, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itNannolytoceras through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Böckh 1881)