Amphidiadema denticulata
No picture of Amphidiadema denticulata was found. Wikipedia and Wikidata were searched and had none. iDigBio and GBIF were not searched: the Paleobiology Database does not place Amphidiadema denticulata firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
On record
Recorded, not inferred- Sits inside
- AmphidiademaPBDB
Time the record covers
At most 14 million years on record.
Every occurrence read is dated to somewhere between 85.7 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Amphidiadema denticulata 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
4 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
1 formation
Loading coastlines…
The named rock units Amphidiadema denticulata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Amphidiadema denticulata and its relatives
Late CretaceousWhere Amphidiadema denticulata and its relatives were recorded in the Late Cretaceous.
Found in the same rock
27 taxa- Inoceramus2 sites
- Isabelidinium belfastense2 sites
- Menuites2 sites
- Baculites bailyi1 site
- Baculites rectus1 site
- Baculites vagina cazadorianus1 site
- Caldeonites validus1 site
- Eubostrychoceras1 site
- Eupachydiscus1 site
- Gaudryceras (Gaudryceras) strictum1 site
- Groussouvrites gemmatus1 site
- Isabelidinium cretaceum1 site
- Jouaniceras (Ainoceras)1 site
- Kitchinites (Neopuzosia) japonicus1 site
- Kitchinites angolaensis1 site
- Kossmaticeras (Karapadites)1 site
- Natalites1 site
- Nelsoniella1 site
- Neograhamites1 site
- Neograhamites taylori1 site
- Odontochitina porifera1 site
- Pseudoxybeloceras1 site
- Pseudoxybeloceras lineatum1 site
- Ryugasella1 site
The Paleobiology Database records 2 sites for Amphidiadema denticulata, 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- Campanian-Maastrichtian (Cretaceous) stratigraphy of the James Ross Island area, Antarctica2
- Palynology of the Marambio Group (Upper Cretaceous) of northern Humps Island1
- Palynology of the Lachman Crags Member, Santa Marta Formation (Upper Cretaceous) of north-west James Ross Island1
Each of the 4 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 content0
No picture of Amphidiadema denticulata was found. Wikipedia and Wikidata were searched and had none.
iDigBio and GBIF were not searched: the Paleobiology Database does not place Amphidiadema denticulata firmly enough to tell it from something else bearing the same name, and a search on the name alone returns whichever of them was photographed.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
No 3D scan of Amphidiadema denticulata was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itAmphidiadema through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cookson and Eisenack 1960