Holcophylloceras aldersoni
No picture of Holcophylloceras aldersoni was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Holcophylloceras aldersoni, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- HolcophyllocerasPBDB
- Diet
- carnivorePBDB, for Phylloceratida
- Life habit
- nektonicPBDB, for Phylloceratida
- Motility
- actively mobilePBDB, for Phylloceratida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 6.4 million years on record.
Every occurrence read is dated to somewhere between 119.57 Mya and 113.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Holcophylloceras aldersoni on record, most of them in the Early 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
8 occurrences- Early 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
1 formation
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The named rock units Holcophylloceras aldersoni has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Holcophylloceras aldersoni and its relatives
Early CretaceousWhere Holcophylloceras aldersoni and its relatives were recorded in the Early Cretaceous.
Found in the same rock
16 taxa- Lytoceras batesi7 sites
- Melchiorites indigenes4 sites
- Parahoplitoides cerrosensis3 sites
- Puzosia3 sites
- Argonauticeras argonautarum2 sites
- Eotetragonites wintunius2 sites
- Gabbioceras angulatum2 sites
- Acanthoplites aegis1 site
- Acanthoplites gardneri1 site
- Hamulina aldersona1 site
- Hemibaculites cyclopius1 site
- Melchiorites shastensis1 site
- Parahoplites macfarlandi1 site
- Parahoplites stantoni1 site
- Pleurotomaria californica1 site
- Tropaeum percostatum1 site
The Paleobiology Database records 8 sites for Holcophylloceras aldersoni, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Lower Cretaceous stratigraphic units of Northern California6
- Ontogenetic study of Phylloceras (Hypophylloceras) onoense, Holcophylloceras aldersoni, and Phyllopachyceras theresae, Lower Cretaceous Phylloceratina (Ammonoidea) of California1
- Lower Cretaceous deposits in California and Oregon1
Each of the 8 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 Holcophylloceras aldersoni was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Holcophylloceras aldersoni, or no answer at all. This entry cannot say which.
No 3D scan of Holcophylloceras aldersoni 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 itHolcophylloceras through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Anderson 1938)