Show Notes & Research
From the Show
Broadcast: 16th August, 2015
Last update: 20th August, 2015
- Read the feedback, notes from the last show
- Begin recording
- Introduction and description of the podcast, goals, modus operandi.
- What An investigation of everything from a British perspective by two brothers (who consider themselves to be relatively normal chaps), one topic at a time.
- Who Geoffrey Campos (engineer and devil’s advocate),
Benjamin de-Campos (designer and believer).
- How Choose a topic of interest, spend a little time researching it, have a discussion then publish the notes.
- Why The main benefits are the fostering of a greater understanding of the world before we die and hopefully, to prompt further thought and discussion from our listeners.
- The topic we will be discussing in this episode is (are?) Dinosaurs
Over 200 million years ago, terrestrial and oceanic reptiles known collectively as Dinosaurs appeared and dominated Earth's fauna for approximately 135 million years. Fuelled by lush forests, warm temperatures and a conducive atmosphere, the diversity of clade Dinosauria ranged from rodent size carnivores, building size herbivores, seafaring goliaths and airborne hunters. Contemporaneous for much of their reign with birds and mammals, environmental changes conspired to tilt the balance of power towards these competitors ending their dominance and ultimately leading to their extinction. What do we know about the epoch in which they lived? What is the appeal of their enduring legacy and will we ever see their like again?
What we’re not talking about
- Rod Stewart (known as ‘Dyno-Rod’ during the triassic)
Each bullet is a talking point. Sub-bullets are topics that may or may not be covered. Usage: Read the bullet and sub-bullets then talk about some or all sub-bullets.
- What does the word ‘dinosaur’ mean to us
- First discovery
- 1824, by William Buckland - found and named Megalosaurus. Sir Richard Owen coined ‘dinosaur’.
- Dating - radiometrics, sedimentary vs. igneous, radiocarbon
- Paleozoic 540-250 MYA - before the dinosaurs, Pangea super-continent
- Triassic 250-200 MYA - start of mesozoic
- Jurassic 200-145 MYA
- Cretaceous 145-65 MYA - end of the mesozoic era, beginning of the Cenozoic
- What came before dinosaurs?
- sea crustaceans
- archosaurs - from which the clade Dinosauria evolved
- Birds are not descended from dinosaurs
- Oh, but they are
- How were the big ones so big?
- Lightweight, hollow bones
- easy eating food, less chewing
- water support
- Oxygen levels
- What covered their bones?
- They probably weren’t scaly
- Where did dinosaurs live?
- All over the planet or what? Were T-rexes roaming around Brandon for example?
- What was earth like during the dino-years?
- How different were the shapes of continents and that sort of thing
- climate, air quality, stuff like that.
- How do we know how old they are?
- Meat eating dinosaurs were rare
- No change there then. Carnivores are always a tiny minority in any pyramid.
- 10km meteorite strike
the Yucatan Peninsula which I’ve been to. Almost certainly the hottest place I’ve ever experienced. Probably why they all died. Drowned in their own sweat. At least the ones in the Yucatan Peninsula did.
- Were all the dinosaurs killed in the Cambrian Explosion?
- Smartest Troodon. Close to Prince Charles in the IQ stakes.
- Heaviest Argentinosaurus. 77 tonnes, close to 14 African elephants. Possibly titanosaur was heavier.
- Fastest ornithomimids. They were similar to Ostriches and could probably hit 25Mph (about 40kmh).
- Most popular Tyrannosaurus Rex. Discoverer: Edward Drinker Cope
- Longest name Micropachycephalosaurus. ‘Tiny thicky’
Terminology specific to the topic
- Cladistics The classification of organisms (including dinosaurs) according to their evolutionary relationships, rather than any external similarities. Creatures in different "clades" are less closely related than those in the same clade, even if they superficially resemble one another.
- Kent ‘Dr Dino’ Hovind is a doctor and is an expert on dinosaurs. He has recently been released from prison.
- Explains fossilisation through the mechanism of ‘hydrodynamic sorting’ which he uses to rationalise
- Details about site, contacts, next show: Extraterrestrial Life
- Outro music choice - something open source or out of copyright so we don’t get sued
- Dinosaur by Orange Corp, an alternative/indie/pop band from Western Massachusetts. Via LastFM
- Recording ends, postmortem recording begins
- Add intro music, outro, any editing
From the Show
Notes, corrections and further references
Scientific American article on soft tissue preservation through the fossilisation process (2010).
Creationists taking soft tissue preservation as proof that it’s a young Earth.
BBC news item on the discovery of the largest dinosaur yet discovered: 77 tonne Argentinosaurus.
Encyclopedia Britannica list of articles discussing radiometric dating.