Episode 476: Dino Hint Fossils Half 2: Chew Marks, burrows, scars, and extra. Each stage in a dinosaur’s life left behind hint fossils: claw marks from a guardian excavating a burrow, eggshells left by hatchlings, fossilized digested meals, battle scars, and in the end, tooth marks left by predators or scavengers.
Among the ichnology subjects we cowl this week:
- Dinosaur bones with punctures, grooves, and scrapes assist to establish their predators (or scavengers)
- Eggs present proof of communal nesting and the mom’s physique temperature
- A filled-in burrow preserved the dinosaur that was sleeping inside
- Fossilized regurgitate, intestine contents, and feces all inform us about what dinosaurs ate
A few of our favourite sources about ichnology:
- The e-book “Hint Fossils: Ideas, Issues, Prospects” edited by William Miller III supply
- The e-book “Hint Fossils as Indicators of Sedimentary Environments”, edited by Dirk Knaust and Richard G. Bromley (good intro, and contains the historical past of the examine of ichnofossils) supply
- The e-book “Ichnology: Organism-Substrate Interactions in Area and Time” by Luis A. Buatois and M. Gabriela Mangano (has an excellent intro on what ichnology is) supply
- The e-book “Dinosaurs With out Bones” by Anthony J. Martin (talks in regards to the traces dinosaurs particularly left behind, and possibly was my first introduction to ichnology, once I learn the e-book after we have been first beginning the podcast—we interviewed Anthony approach again in episode 2, and not too long ago remastered the episode) supply
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The dinosaur of the day: Bihariosaurus
- Ornithopod that lived within the Early Cretaceous in what’s now Romania
- Iguanodontian, just like Camptosaurus
- Appeared like different ornithopods
- Walked on two legs, cumbersome physique, lengthy tail, elongated head (in paleoart)
- Unknown how massive it was
- No distinct options in fossils discovered, appears like different ornithopods, so thought-about to be a nomen nudum
- Bonebed the place it was discovered is usually ornithopods
- Kind species is Bihariosaurus bauxiticus
- Genus identify means “bihor lizard”
- Bihor County is in Romania
- Named in 1989 by Florian Marinescu (didn’t describe it)
- Marinescu excavated by hand over 500 bones from the realm in 1978 to 1979
- Marinescu named Bihariosaurus based mostly on materials studied by Patrulius and others (he was a part of it), who recognized Hypsilophodon and Valdosaurus, Iguanodon and Vectisaurus within the bone assemblage
- Fossils discovered embody lengthy bones of the hand (metapodials), vertebral centra, and phalanges (bones within the hand or toes)
Enjoyable Reality:
There aren’t solely fossilized feces (coprolites) but in addition traces of fossilized urine (urolites).
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