Stagodontidae
Stagodontidae is an extinct family of carnivorous metatherian mammals that inhabited North America and Europe during the late Cretaceous, and possibly to the Eocene in South America.

Gregory P. Wilson, Eric G. Ekdale, John W. Hoganson, Jonathan J. Calede & Abby Vander Linden · CC BY 4.0 · 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
- MarsupialiformesPBDB
- Diet
- carnivore, durophagePBDB
- Life habit
- scansorialPBDB, for Theria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB
Time the record covers
At least 37 million years on record.
The record covers at least 93.9 Mya to 56 Mya. No occurrence read is dated outside 100.5 Mya to 48.07 Mya.
130 occurrences of Stagodontidae 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
130 occurrences- Late Cretaceous99%
- Eoceneunder 1%
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
20 formations
- Hell Creek Formation · Montana Group52
- Lance Formation29
- Judith River Formation · Montana Group7
- Oldman Formation · Belly River Group6
- Scollard Formation6
- Straight Cliffs Formation4
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The named rock units Stagodontidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Stagodontidae and its relatives
Late CretaceousWhere Stagodontidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
702 taxa- Didelphodon vorax69 sites
- Meniscoessus robustus51 sites
- Cimolodon nitidus33 sites
- Myledaphus bipartitus31 sites
- Lepisosteus occidentalis29 sites
- Trionychidae29 sites
- Mesodma thompsoni28 sites
- Scapherpeton tectum28 sites
- Protolambda hatcheri27 sites
- Champsosaurus26 sites
- Paronychodon25 sites
- Gypsonictops hypoconus24 sites
- Theropoda24 sites
- Brachychampsa montana23 sites
- Borealosuchus sternbergii22 sites
- Cimolomys gracilis22 sites
- Ceratopsidae21 sites
- Chelydridae21 sites
- Protolambda florencae21 sites
- Pediomys elegans20 sites
- Baenidae19 sites
- Dromaeosauridae18 sites
- Lonchidion selachos18 sites
- Adocus17 sites
The Paleobiology Database records 115 sites for Stagodontidae, 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
50 references- Fossil mammals from the type Lance Formation, Wyoming. Part II. Marsupialia14
- The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana13
- The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming12
- A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana9
- Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota7
- Latest Cretaceous mammals of upper part of Edmonton Formation of Alberta, Canada, and review of marsupial-placental dichotomy in mammalian evolution5
- A large carnivorous mammal from the Late Cretaceous and the North American origin of marsupials4
- Mammalian fauna of the Judith River Formation (Late Cretaceous, Judithian), northcentral Montana4
- Cretaceous mammals from Montana4
- Late Cretaceous mammals of western South Dakota, 19743
- Cretaceous mammals of Alberta3
- Earliest Divergence of Stagodontid (Mammalia: Marsupialiformes) Feeding Strategies from the Late Cretaceous (Turonian) of North America2
Each of the 130 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. 38 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 Stagodontidae
- Source
- Wikipedia/Commons
- Credit
- Gregory P. Wilson, Eric G. Ekdale, John W. Hoganson, Jonathan J. Calede & Abby Vander Linden
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Stagodontidae 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.
The description on this site
- 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 itMarsupialiformes through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Marsh 1889)