Baculites compressus
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
- BaculitesPBDB
- 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 most 78 million years on record.
Every occurrence read is dated to somewhere between 143.1 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
27 occurrences of Baculites compressus 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
27 occurrencesThese 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
8 formations
- Bearpaw Formation11
- Pierre Shale Formation · Montana Group6
- Bearpaw Formation3
- Bearpaw Shale Formation · Montana Group2
- Foremost Formation1
- Lea Park Formation1
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The named rock units Baculites compressus 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.
Baculites compressus and its relatives
Late CretaceousWhere Baculites compressus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
175 taxa- Hoploscaphites nodosus6 sites
- Placenticeras6 sites
- Inoceramus5 sites
- Leptocardia borealis5 sites
- Baculites ovatus4 sites
- Inoceramus (Cataceramus) tenuilineatus4 sites
- Ostrea4 sites
- Phelopteria linguaeformis4 sites
- Acanthoscaphites3 sites
- Anomia3 sites
- Arctica3 sites
- Baculites pseudovatus3 sites
- Dentalium3 sites
- Lunatia obliquata3 sites
- Nymphalucina occidentalis3 sites
- Placenticeras intercalare3 sites
- Syncyclonema hallii3 sites
- Acteon concinnus2 sites
- Amauropsis paludinaeformis2 sites
- Anchura2 sites
- Anisomyon centrale2 sites
- Corbula2 sites
- Crenella elegantula2 sites
- Cymbophora warrenana2 sites
The Paleobiology Database records 27 sites for Baculites compressus, 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
11 references- Geology of the Fort Peck area, Garfield, McCone and Valley counties, Montana11
- Geology of the Southern Alberta Plains. Part II. Paleontology of the marine formations of the Montana Group3
- Cephalopods of the Pierre Formation of Wallace County, Kansas, and adjacent area3
- Invertebrate paleontology of southern plans of Alberta2
- Descriptions of New Species of Fossils, from the Cretaceous Formations of Nebraska, with Observations upon Baculites ovatus and B. compressus, and the Progressive Development of the Septa in Baculites, Ammonites, and Scaphites2
- A new species of the durophagous mosasaur Globidens (Squamata: Mosasauridae) from the Late Cretaceous Pierre Shale Group of central South Dakota, USA1
- The molluscan and brachiopod fauna of the Late Cretaceous Pierre Shale (Baculites compressus/Baculites cuneatus biozones) near Kremmling, Colorado1
- New Baculites from the Bearpaw Shale and Equivalent Rocks of the Western Interior1
- Mosasaurus poultneyi a South Dakota mosasaur1
- The fauna of the Lea Park Shale1
- A Cretaceous and lower Tertiary section in south central Montana1
Each of the 27 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 content2
Picture of Baculites compressus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
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 itBaculites through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Say 1920