Anzu
Anzu is a genus of caenagnathid dinosaur from North Dakota, South Dakota, and Montana that lived during the Late Cretaceous in what is now the Hell Creek Formation. The type species, Anzu wyliei, known from numerous skeletons that preserve cranial and postcranial elements. It was named in 2014 by Matthew C. Lamanna, Hans-Dieter Sues, Emma R. Schachner, and Tyler R. Lyson.

LittleLazyLass · 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- Also called
- chicken from hellPBDB
- Sits inside
- CaenagnathinaePBDB
- Diet
- omnivorePBDB, for Oviraptorosauria
- Life habit
- ground dwelling, depth=surfacePBDB, for Oviraptorosauria
- Motility
- actively mobilePBDB, for Oviraptorosauria
- Environment
- terrestrialPBDB, for Oviraptorosauria
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Anzu 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
6 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
1 formation
- Hell Creek Formation · Montana Group6
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The named rock units Anzu has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Anzu and its relatives
Late CretaceousWhere Anzu and its relatives were recorded in the Late Cretaceous.
Found in the same rock
83 taxa- Acheroraptor temertyorum2 sites
- Axestemys infernalis2 sites
- Baenidae2 sites
- Basilemys2 sites
- Compsemys victa2 sites
- Leepierceia preartocarpoides2 sites
- Lepisosteus2 sites
- Neurankylus2 sites
- Ornithischia2 sites
- Pachycephalosaurus wyomingensis2 sites
- Theropoda2 sites
- Triceratops2 sites
- Acipenser albertensis1 site
- Adocus1 site
- Adocus lineolatus1 site
- Albertonykus1 site
- Ankylosaurus magniventris1 site
- Apalone1 site
- Aspideretoides1 site
- Aspideretoides superstes1 site
- Aves1 site
- Axestemys1 site
- Basilemys sinuosa1 site
- Borealosuchus1 site
The Paleobiology Database records 5 sites for Anzu, 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
5 references- A New large-bodied oviraptorosaurian theropod dinosaur from the latest Cretaceous of western North America2
- The paleontology, geology and taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota1
- Metatarsals of a large caenagnathid cf. Anzu wyliei (Theropoda: Oviraptorosauria) from the Hell Creek Formation in South Dakota, U.S.A.1
- Morphology and osteohistology of a large‐bodied caenagnathid (Theropoda, Oviraptorosauria) from the Hell Creek Formation (Montana): implications for size‐based classifications and growth reconstruction in theropods1
- New cranial material of Gilmoremys lancensis (Testudines, Trionychidae) from the Hell Creek Formation of southeastern Montana, U.S.A1
Each of the 6 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 Anzu
- Source
- Wikipedia/Commons
- Credit
- LittleLazyLass
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Anzu 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
- Source
- Wikipedia, “Anzu wyliei”
- 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 itCaenagnathinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lamanna et al. 2014