Acroteuthis
Acroteuthis is a genus of belemnite from the early Cretaceous of Asia, Europe, and North America.
Daderot · CC0 · 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
- BelemnitidaePBDB
- Diet
- carnivorePBDB, for Cephalopoda
- Life habit
- nektonicPBDB, for Belemnitida
- Motility
- fast-movingPBDB, for Cephalopoda
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 23 million years on record.
The record covers at least 143.1 Mya to 119.57 Mya. No occurrence read is dated outside 149.2 Mya to 113.2 Mya.
118 occurrences of Acroteuthis 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
118 occurrences- Late Jurassicunder 1%
- Early Cretaceous99%
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
7 formations
- Budden Canyon Formation13
- Mount Goodenough Formation8
- Paskenta Formation2
- Paksa Formation1
- Brokenback Hill Formation1
- Ust'-Balyk Formation1
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The named rock units Acroteuthis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 91 occurrences have no formation on record, which is common for older literature.
Acroteuthis and its relatives
Early CretaceousWhere Acroteuthis and its relatives were recorded in the Early Cretaceous.
Found in the same rock
327 taxa- Buchia18 sites
- Camptonectes12 sites
- Entolium12 sites
- Buchia volgensis11 sites
- Astarte10 sites
- Cylindroteuthis10 sites
- Lagonibelus10 sites
- Lima (Limatula) consobrina10 sites
- Arctica9 sites
- Buchia inflata9 sites
- Buchia keyserlingi9 sites
- Hectoroceras (Hectoroceras) kochi9 sites
- Pinna9 sites
- Pleuromya9 sites
- Surites9 sites
- Pachyteuthis8 sites
- Buchia terebratuloides7 sites
- Tollia7 sites
- Homomya6 sites
- Inoceramus6 sites
- Musculus5 sites
- Astarte saemanni4 sites
- Bogoslovskya4 sites
- Buchia uncitoides4 sites
The Paleobiology Database records 78 sites for Acroteuthis, 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
17 references- The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm59
- Poliptikhity (Ammonity) i biostratigrafiya boreal'nogo Valanzhina14
- Lower Cretaceous stratigraphic units of Northern California9
- Uppermost Jurassic and Cretaceous rocks of Aklavik Range, Northeastern Richardson Mountains, Northwest Territories8
- Additional observations on the invertebrates (chiefly ammonites) of the Jurassic and Cretaceous of East Greenland6
- Mesozoic and ? Tertiary rocks of Quatsino Sound, Vancouver Island, Bristish Columbia4
- Lower Cretaceous deposits in California and Oregon4
- Macrofossil zones of the marine Cretaceous of the Western Interior of Canada and their correlation with the zones and stages of Europe and the Western Interior of the United States3
- Valanginian brachiopods from the Caspian Basin2
- Ammonites of Early Cretaceous age (Valanginian and Hauterivian) from the Pacific Coast states2
- Correlation of the Barremian belemnite successions of northwest Europe and the Ulyanovsk Saratov area (Russian Platform)1
- Biostratigraphy of the Neocomian of the northern Ob' region1
Each of the 118 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. 5 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 content1
Picture of Acroteuthis
- Source
- Wikipedia/Commons
- Credit
- Daderot
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Acroteuthis”
- 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 itBelemnitidae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stolley 1911