S136 - Top Rare Acheroraptor temertyorum (Dromaeosaurid Raptor Theropod) Dinosaur Tooth - Lance Creek Fm Alokistocare St Petersburg region

St Petersburg region

it can be any of the two genus of Sauropod mentioned above

as well as sifting through detritus (inferred from its lack of jaws and inability to bite)

Burmeister 1843 (trilobite)

Richter and Richter 1925 (trilobite)

S136 - Top Rare Acheroraptor temertyorum (Dromaeosaurid Raptor Theropod) Dinosaur Tooth - Lance Creek Fm Alokistocare St Petersburg regionWhile Acheroraptor is primarily known from the Hell Creek Formation, some fragmentary remains, including teeth, have been found in the geologically similar Lance Formation from the same time period. These fossils are from the late Maastrichtian age (around 66 million years ago). Identifying Acheroraptor teeth can be challenging, but they may have subtle apicobasal ridges and different sized serrations on the anterior versus posterior sides of the