“The rex bite is unique among better known dinosaurs. Instead of inflicting a long, shallow wound, rex jaws would thrust a few crowns deep into bone armor, killing a Triceratops with a single blow. We see close-linked co-evolution here, a terminal Cretaceous arms race. Triceratops is the commonest horned dino of the time, the final dinosaurian Age, the Lancian. T’tops departs from the ceratopsian tradition of frill construction. Torosaurus, very rare during the Lancian Age of the Cretaceous, retains that basic design: the frill is composed of thin bone rods that make a frame, with huge holes in the middle. Triceratops fills in the holes with greatly thickened bone. Why would Triceratops invest in five times as much bone volume in its frill? Well…to me the answer is obvious. Because the commonest predator has evolved great, armor-penetrating teeth. The argument goes in the other direction – T. rex evolved swollen, tall tooth crowns to deal with the unusual protection of the commonest horned herbivore.”

—  Robert T. Bakker

As quoted in Paleontological Profiles: Robert Bakker http://scienceblogs.com/laelaps/2008/04/07/paleontological-profiles-rober/, scienceblogs (April 7, 2008)

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "The rex bite is unique among better known dinosaurs. Instead of inflicting a long, shallow wound, rex jaws would thrust…" by Robert T. Bakker?
Robert T. Bakker photo
Robert T. Bakker30
American paleontologist 1945

Related quotes

Robert T. Bakker photo

“Without doubt the most dangerous devices for active defense among the Dinosauria emerged in Triceratops. The scene has been portrayed in paintings, drawings, and illustrations hundreds of times, but it remains thrilling. Tyrannosaurus, the greatest dinosaur toreador, confronts Triceratops, the greatest set of dinosaur horns. No matchup between predator and prey has ever been more dramatic. It's somehow fitting that those two massive antagonists lived out their co-evolutionary belligerence through the very last days of the very last epoch in the Age of Dinosaurs. Tyrannosaurus stood over twenty feet tall when fully erect, and a large adult was as heavy as a small elephant - five tons. No predatory dinosaur, no predatory land animal of any sort, had more powerful jaws. Withstanding a Tyrannosauruss attack required either tanklike armor – the approach taken by Ankylosaurus”

Robert T. Bakker book The Dinosaur Heresies

or most powerful defensive weapons - the approach taken by Triceratops.
The Dinosaur Heresies: A Revolutionary View of Dinosaurs (1986), Longman Scientific & Technical, p. 240-241
The Dinosaur Heresies (1986)

Will Cuppy photo

“During the Cretaceous Period many of the inland seas dried up, leaving the Plesiosaurs stranded without any fish. Just about that time Mother Nature scrapped the whole Age of Reptiles and called for a new deal. And you can see what she got. [Footnote: Here we see the working of another Law of Nature: No water, no fish. ]”

Will Cuppy (1884–1949) American writer

The Plesiosaur
How to Become Extinct (1941)

Will Cuppy photo

“During the Cretaceous Period many of the inland seas dried up, leaving the Plesiosaurs stranded without any fish. Just about that time Mother Nature scrapped the whole Age of Reptiles and called for a new deal. And you can see what she got.”

Will Cuppy (1884–1949) American writer

Footnote: Here we see the working of another Law of Nature: No water, no fish.
The Plesiosaur
How to Become Extinct (1941)

Gregory Scott Paul photo

“The culmination of tyrannosaur evolution, T. rex was one of the very last North American dinosaurs. Nothing else combined its size, speed, and power. Since its demise we have had to make do with lions and tigers and bears, and other "little" mammalian carnivores.”

Gregory Scott Paul (1954) U.S. researcher, author, paleontologist, and illustrator

Gregory S. Paul (1988) Predatory Dinosaurs of the World, Simon and Schuster, p. 346
Predatory Dinosaurs of the World

“I would give ten years off the beginning of my life to see, only once, Tyrannosaurus rex come rearing up from the elms of Central Park, a Morgan police horse screaming in its jaws. We can never have enough of nature.”

Edward Abbey book Down the River

Down the River (1982)

Clifford D. Simak photo

“"We're very close to immortal, you know. The time mechanism keeps it that way."
"No, I hadn't known," said Boone.
"Inside the time bubble we do not age. We age only when we are outside of it."”

Clifford D. Simak Highway of Eternity

Highway of Eternity (1986)

“This is not an age of castles, moats, and armor, where people can sustain a competitive advantage for very long. This is an age that calls for cunning, speed, and enterprise.”

Richard D’Aveni (1953) American economist

Richard D'Aveni, in: "The Mavericks," Fortune, June 1995.

Ray Harryhausen photo

“The most popular exhibits in any natural history musem are, without doubt, the dinosaurs. These creatures' popularity grows each year, partly because of the recent resurgence of dinosaur movies, but also because a skeleton of a full-sized tyrannosaurus rex still has the ability, even 65 million years after its death, to chill us to the bone.”

Ray Harryhausen (1920–2013) American animator

Source: An Animated Life (2003), p. 195

Vera Stanley Alder photo

“Nations will for a long time insist upon a large measure of self-government, but when they begin to see the benefits which accrue from each successive international co-operative development, they will finally grasp the new principle of synthesis, and the age of separation will be over for ever.”

Vera Stanley Alder (1898–1984) British artist

Source: Humanity Comes of Age, A study of Individual and World Fulfillment (1950), Chapter II Planning a Model World

Gerald of Wales photo

“To his industry we are exclusively indebted for all that is known of the state of Ireland during the whole of the middle ages, a few barren Chronicles excepted.”

Gerald of Wales (1146) Medieval clergyman and historian

John S Brewer Giraldi Cambrensis Opera Vol. 1 (1861), p. xl.
Criticism

Related topics