Dallasiella

Ewell, K. · CC0 · via GBIF. 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
- LamniformesPBDB
- Diet
- carnivorePBDB, for Lamniformes
- Life habit
- nektonicPBDB, for Lamniformes
- Motility
- actively mobilePBDB, for Lamniformes
Time the record covers
At least 10 million years on record.
The record covers at least 93.9 Mya to 83.6 Mya. No occurrence read is dated outside 113.2 Mya to 72.2 Mya.
15 occurrences of Dallasiella 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
15 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
6 formations
- Carlile Shale Formation · Colorado Group3
- Kaskapau Formation · Smoky Group2
- Greenhorn Limestone Formation2
- Dunvegan Formation1
- Atco Formation · Austin Group1
- Kazhdumi Formation1
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The named rock units Dallasiella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Dallasiella and its relatives
Late CretaceousWhere Dallasiella and its relatives were recorded in the Late Cretaceous.
Found in the same rock
192 taxa- Archaeolamna kopingensis7 sites
- Cretoxyrhina mantelli7 sites
- Squalicorax falcatus7 sites
- Cretalamna appendiculata6 sites
- Johnlongia parvidens6 sites
- Squalicorax pawpawensis6 sites
- Enchodus shumardi5 sites
- Heterodontus5 sites
- Pseudoscapanorhynchus compressidens5 sites
- Ptychodus whipplei5 sites
- Cretomanta canadensis4 sites
- Ptychodus mammillaris4 sites
- Squalicorax4 sites
- Anacoracidae3 sites
- Cantioscyllium decipiens3 sites
- Cederstroemia siverssoni3 sites
- Chiloscyllium3 sites
- Cretodus semiplicatus3 sites
- Hybodus3 sites
- Ischyrhiza texana3 sites
- Pachyrhizodus3 sites
- Pachyrhizodus minimus3 sites
- Paranomotodon3 sites
- Protolamna3 sites
The Paleobiology Database records 15 sites for Dallasiella, 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- Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK3
- Late Cretaceous marine vertebrates from the upper half of the Pfeifer Shale Member of the Greenhorn Limestone in central Kansas, USA, and comments on the geologically oldest mosasaur remains in Kansas2
- A high latitude euselachian assemblage from the early Turonian of Alberta, Canada2
- First report of Albian–Cenomanian ichthyological microremains from the Kazhdumi Formation Fars Province, Zagros Basin, South Iran1
- A new dallasiellid shark from the lower Campanian (Upper Cretaceous) of Sweden1
- Fossil marine vertebrates from the Codell Sandstone Member (middle Turonian) of the Upper Cretaceous Carlile Shale in Jewell County, Kansas, USA1
- Late Cretaceous marine vertebrate fauna from the Fairport Chalk Member of the Carlile Shale in southern Ellis County, Kansas, U.S.A.1
- Early Coniacian (Late Cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas1
- A middle Cenomanian euselachian assemblage from the Dunvegan Formation of northwestern Alberta1
- Late Cretaceous sharks Cretoxyrhina and Cardabiodon from Montana, USA1
- Additions aux faunes de sélaciens du Crétacé du Texas (Albien supérieur-Campanien)1
Each of the 15 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 content1

Picture of Dallasiella
- Source
- GBIF
- Credit
- Ewell, K.
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Dallasiella 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 itLamniformes through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cappetta and Case 1999