Did Raptorex Really Exist?

The video explores the controversy surrounding the dinosaur specimen LH PV18, focusing on its age and classification. Scientists debate whether it belongs to the genus Raptorex or is a juvenile Tarbosaurus. The video explains fossil dating methods, including absolute and relative dating, and the challenges faced in dating LH PV18 due to its uncertain excavation site. It discusses potential future methods to resolve these uncertainties and highlights the scientific process's complexities.

What is the main controversy surrounding the LH PV18 dinosaur specimen?

• Its exact location of discovery

• Its classification and age

• Its size and diet

• Its color and habitat

Why can't carbon dating be used to determine the age of dinosaur fossils?

• Carbon-14 decays too quickly for fossils older than 50,000 years

• Carbon-14 decays too slowly

• Carbon-14 is not found in fossils

• Carbon-14 is too abundant in dinosaur fossils

Which elements are used in alternative absolute dating methods for older fossils?

• Hydrogen, helium, and lithium

• Uranium, lead, and argon

• Carbon, nitrogen, and oxygen

• Iron, copper, and zinc

What is lithostratigraphy?

• A technique to match rock layers to estimate fossil age

• A process of using carbon isotopes to date fossils

• A method of dating fossils using volcanic rocks

• A way to determine the diet of ancient animals

What was the key piece of evidence used to estimate the age of the Raptorex fossil?

• A dinosaur tooth

• A fish vertebra

• A plant fossil

• A volcanic rock layer

What is one potential future method mentioned for dating the Raptorex fossil?

• Magnetic resonance imaging

• Detrital Zircon testing

• Carbon dating

• DNA sequencing

What is the significance of bone fusion in determining the age of a dinosaur?

• It helps determine if the dinosaur was an adult or juvenile

• It indicates the dinosaur's diet

• It reveals the dinosaur's habitat

• It shows the dinosaur's speed

What is biostratigraphy?

• A technique to measure the size of fossils

• Using other fossils to estimate the age of a fossil

• Dating fossils using surrounding rock layers

• A method to determine the diet of ancient animals

What is the main challenge in using lithostratigraphy for the Raptorex fossil?

• The fossil was found in volcanic rock

• The exact location of the fossil is unknown

• The fossil is too small

• The fossil is too old

What is the unresolved question about the Raptorex fossil?

• Its color and habitat

• Its speed and strength

• Its exact age and classification

• Its diet and size