History Recap / Dinosauria

* TheCretaceousIsAlwaysDoomed: Focuses on the day the K-T impact put an end to the Mesozoic era.

* CoveredInScars: The male ''T. rex'' has scars on his face consistent with the bite marks of another T. rex. The Edmontosaurus and the Triceratops at the watering hole also have healed bite wounds from a T. rex, highlighting their wariness of the female T. rex coming to drink.

* CartoonCreature: According to the making off video the small Mesozoic birds are a mosaic of Cretaceous enantiornitheans. They are imaginary and dubbed "[[CanisLatinicus Madeupornis birdi]]" ("[[DepartmentOfRedundancyDepartment Made-up bird bird]]").

* DownerEnding: The asteroid hits, and the dinosaurs(the non-avian ones) go extinct.

* DownerEnding: The asteroid hits, and the (non-avian) dinosaurs go extinct.

* DownerEnding: The asteroid hits, and the dinosaurs go extinct.

* PaleFemalesDarkMales: Most male animals are contrasted with pale female ones. A possible exception might be the ''Gorgosaurus'', in which the female (inferred by larger size and it being the recipient of a food offering) is darker than the male.

* PaleFemalesDarkMales: Most male animals are contrasted with pale female ones. A possible exception might be the ''Gorgosaurus'', in which the female (inferred by larger size) is darker than the male.

* ArtisticLicensePaleontology: The short portrays hadrosaurs as monogamous; in fact the plot hinges around a ''Lambeosaurus''' grief over losing his partner and desperation over getting a new one. It is generally agreed that hadrosaurs were most likely polygamous like deer and other ungulates since they have similar sexual dimorphism.

** The ''Troodon'' is based on a arctic fox, due to living in a cave-like den with its young and having to rely on its speed and intelligence to survive against larger predators.

** The ''Troodon'' is based on a coyote, due to living in a cave-like den with its young and having to rely on its speed and intelligence to survive against larger predators.

*** Also, the feathers found on the above mentioned specimens were not downy, but quill-like (essentially just the hollow shaft of a feather), and were only found on the lower end of the dorsum or tail. So far, it is still unclear whether or not Ornithiscians (bird-hipped dinosaurs) had advanced feathers at all.

*** This applies to a lesser degree to ''Nanuqsaurus'', also depicted here as having a full-body fluffy coat in lieu of lacking any skin impressions. This generally isn't considered as bad as ''Pachyrhinosaurus'' due to ''Yutyrannus'' providing precedent for large tyrannosauroids in cool climates to be fully-feathered. Even if it was feathered, it likely didn't have the white and grey coat the specimens in the short have, as the Prince Creek formation didn't have enough year-round snow to justify the adaptation.

* BizarreSexualDimorphism: The female ''Geosternbergia'' are smaller, less colorful and have much smaller crests than their male counterpart.

* PteroSoarer: Averted--the ''Geosternbergia'' are all accurate, being properly proportioned, catching prey in their beaks instead of their feet, sexually dimorphic, etc. and even display plausible behaviors not often seen in most media, such as being polygynous, communicating via bill clacks and catching fish by diving underwater.

* AsskickingEqualsAuthority: ''Styracosaurus'' social hierarchies (at least for the males) are very decidedly based on who is the best fighter.