Hoplitoplacenticeras

via iDigBio · CC0 · via iDigBio. 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
- PlacenticeratidaePBDB
- 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 89.8 Mya to 66 Mya.
66 occurrences of Hoplitoplacenticeras 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
66 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
14 formations
- Ahlen Formation7
- Daralitau Formation5
- Santa Marta Formation3
- Saint Cirac Formation2
- Gulpen Formation2
- Cerro Cazador Formation1
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The named rock units Hoplitoplacenticeras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 occurrences have no formation on record, which is common for older literature.
Hoplitoplacenticeras and its relatives
Late CretaceousWhere Hoplitoplacenticeras and its relatives were recorded in the Late Cretaceous.
Found in the same rock
245 taxa- Baculites9 sites
- Cataceramus balticus5 sites
- Baculites anceps4 sites
- Pachydiscus (Pachydiscus) haldemsis4 sites
- Baculites vertebralis3 sites
- Bostrychoceras polyplocum3 sites
- Desmophyllites diphylloides3 sites
- Hoploscaphites3 sites
- Menuites3 sites
- Neancyloceras bipunctatum3 sites
- Pachydiscus3 sites
- Pecten (Syncyclonema) membranaceus3 sites
- Phylloceras3 sites
- Tetragonites3 sites
- Trachyscaphites spiniger3 sites
- Amphithelion (Amphithelion) macrommata2 sites
- Anagaudryceras subsacya2 sites
- Aporrhais2 sites
- Arca2 sites
- Astarte similis2 sites
- Belemnitella mucronata2 sites
- Cardiaster2 sites
- Cardium2 sites
- Cassianella gryphaeata2 sites
The Paleobiology Database records 51 sites for Hoplitoplacenticeras, 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
25 references- Campanian and Maastrichtian ammonites from northern Aquitaine, France17
- Atabekyan and Khakimov, 19768
- Die Großfauna der Mukronatenkreide (unteres Obercampan) im östlichen Münsterland7
- Die Cephalopoden der oberen Kreide Südpatagoniens5
- Cretaceous ammonites and nautiloids from Angola3
- Hoplitoplacenticeras (H.) howarthi Collignon, 1970 (Cephalopoda: Ammonoidea) from KwaZulu-Natal, South Africa and Madagascar; intraspecific variation, dimorphism and affinities2
- Ammonites and nannofossils from the Campanian of Nalzen (Ariége, France)2
- El Cretacio Superior del sudeste de la Isla James Ross, Antartida2
- The ammonite fauna of the type Maastrichtian with a revision of Ammonites colligatus Binkhorst, 18612
- Part I. Ammonites from the Upper Campanian of the Teshio Mountains2
- Le gisement campanien de Mira (Beira litorale, Portugal): sedimentologie, micropaleontologie, revision de Madreporaires [The Campanian of Mira (Beira, Portugal)): sedimentology, micropaleontology, revision of Scleractinia)]2
- Late Cretaceous ophiuroids from the Münsterland Basin (Germany): preliminary observations1
Each of the 66 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. 13 further references are not listed. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Hoplitoplacenticeras
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Hoplitoplacenticeras 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 itPlacenticeratidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Paulcke 1906