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The Eocene Tologaysor (say that 3 times in a row) formation in Kazakhstan shows this transition nicely. The point is that it is clear the Megatooth shark lineage (Carcharocles) was born from the Otodus lineage.

Each zone of the formation has Otodus teeth that are slightly more serrated over geologic time until they start looking like an early Carcharocles tooth. Notice, nothing was said about the Great White Shark, Carcharodon Carcharias.

Once the Otodus teeth became mostly serrated, paleontologists renamed the serrated Otodus genus to the Carcharocles genus, and thus the Carcharocles genus arose. That's because the Megalodon is NOT related to the Great White Shark. To learn about Great White shark origins and evolution, click here to go to the Great White Shark Gallery page.

Where the genus transition occurs depends on which paleontologist you ask. Over time the Megatooth shark went through slight morphological changes.

The quality of this vertebra indicates it was probably swallowed. There is absolutely no credible evidence that megalodon exists today.

There is overwhelming evidence that megalodon is extinct.

With that said, no one is sure what the body of the megalodon shark looked like. Using tooth and jaw reconstructions from associated fossils, paleontologists have calculated possible size estimates.

Therefore it is difficult to say how big the megalodon shark could get. Some estimates (Pimiento & Balk 2015) give a megalodon a maximum average length of around 59 feet (18 m), while other estimates are a little higher, such as 66 feet (20.2 m) (Gottfried et al. The average size of a megalodon was around 33 feet (10 m).

To view either bite force article, scroll to the bottom of the page to the references section for links.

The teeth became more regularly serrated, the Otodus cusps got smaller, the crown got broader, and the overall size increased. The megalodon shark became extinct during the Pliocene and left no next of kin; the megalodon became too large and too specialized for its own good. A very rough chronology of Megatooth species, leading to the megalodon is shown on the following table: It's important to note that each species is the Megatooth shark, with a slight change in tooth form over different periods of time.

Paleontologists assigned each slight tooth change of the Megatooth shark to a new Carcharocles species. As a result, there are many teeth that are a cross between two species. subauriculatus have large cusps, where by late Miocene the cusps are very small.

Left Image: Standing behind a reconstructed Megalodon Jaw with fossil teeth at the Smithsonian Museum of Natural History in D. Right Image: Assortment of Carcharocles Megalodon Fossil Shark Teeth Found Over the Years.

Name: Carcharocles Megalodon in Greek is: Carcharocles: "Famed for Jaggedness" and Megalodon: "Big Tooth" Discovery: People have been finding Fossil Shark teeth, including the large Megalodon teeth, throughout history: Pliny the Elder, around 70 AD, beleived shark teeth were triangular objects dropped from the sky during lunar eclipses.