Thylacus cretaceus
No picture of Thylacus cretaceus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Thylacus cretaceus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ThylacusPBDB
- Diet
- suspension feederPBDB, for Calyptraeidae
- Life habit
- epifaunalPBDB, for Calyptraeidae
- Motility
- facultatively mobile, attachedPBDB, for Calyptraeidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
37 occurrences of Thylacus cretaceus 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
37 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
7 formations
- Prairie Bluff Formation13
- Ripley Formation · Selma Group7
- Coffee Sand Formation · Selma Group6
- Owl Creek Formation4
- Corsicana Marl Formation4
- Providence Formation2
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The named rock units Thylacus cretaceus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Thylacus cretaceus and its relatives
Late CretaceousWhere Thylacus cretaceus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
872 taxa- Turritella vertebroides27 sites
- Veniella conradi27 sites
- Exogyra (Exogyra) costata24 sites
- Turritella22 sites
- Crenella serica21 sites
- Anomia argentaria20 sites
- Cliona20 sites
- Crassatella vadosa20 sites
- Bellifusus19 sites
- Idonearca capax19 sites
- Turritella trilira19 sites
- Anchura18 sites
- Neogastropoda18 sites
- Serpula18 sites
- Cubitostrea tecticosta17 sites
- Cyprimeria17 sites
- Drilluta17 sites
- Gyrodes (Sohlella) spillmani17 sites
- Nuculana17 sites
- Euspira rectilabrum16 sites
- Gyrodes abyssinus16 sites
- Bryozoa15 sites
- Paladmete cancellaria15 sites
- Vertebrata15 sites
The Paleobiology Database records 37 sites for Thylacus cretaceus, 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
9 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain18
- Archeogastropoda, Mesogastropoda and stratigraphy of the Ripley, Owl Creek, and Prairie Bluff Formations5
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain4
- The Streptoneuran gastropods, exclusive of the Stenoglossa, of the coffee sand (Campanian) of Northeastern Mississippi3
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals2
- Changes in Late Cretaceous - early Tertiary benthic marine assemblages: analyses from the North American coastal plain shallow-shelf2
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf1
- Gastropods from the coffee Sand (Upper Cretaceous) of Mississippi1
- The fauna of the Ripley formation on Coon creek, Tennessee1
Each of the 37 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 content0
No picture of Thylacus cretaceus was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Thylacus cretaceus, or no answer at all. This entry cannot say which.
No 3D scan of Thylacus cretaceus 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 itThylacus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1860