Invertebrate Fossils - Lesson 16 ( video )

lecciones de invertebrados en ingles .... sin subtitular pero muy entendible e interesante. Atreveos los iniciados al ingles, pronuncia claaaaaaaaramente !!!

https://www.youtube.com/watch?v=WqTKG9JtNaE&feature=BFa&list=FLCmlyeOeDSmq0QOWx0uoP-g

parte 1
Invertebrate Fossils - Lesson 16 - Part 1 of 7
•Invertebrates definition no backbone
•What is a fossil? Any trace of life.
•Trace fossils
•Make up of fossils
•Acid test for calcium carbonate
•Using diagrams to illustrate how a fossil is formed
•Silicification
•Rugose coral, Bryzoa

https://www.youtube.com/watch?v=AU2W5LHn6mE

parte 2

Invertebrate Fossils - Lesson 16 - Part 2 of 7
•Horn coral
•Brachiopod shells with external spines
•Seasonal growth of coral
•Cambrian fauna
•Precambrian Ediacara fauna Australia - First fossils formed with many cells

https://www.youtube.com/watch?v=boYm7Gu7VH0

parte 3

nvertebrate Fossils - Lesson 16 - Part 3 of 7
•Multi-cell advantages -- experiment to show multi-cell formation
•Trilobites
•Illustrated Geological time scale showing organisms from the Pre-Cambrian

https://www.youtube.com/watch?v=NeBGmrw7MTQ

parte 4

invertebrate Fossils - Lesson 16 - Part 4 of 7
•Mollusks
•Clam -- filter feeder
•Squid, Octopus
•Snails -- Gastropods
•Deposit feeders
•Cephalopods -- ammonites
•Bi-valves clams, oysters; filter feeders, hinged shells

https://www.youtube.com/watch?v=8ceKvwPrqOM

parte 5

Invertebrate Fossils - Lesson 16 - Part 5 of 7
•Mollusks in the Cambrian time
•Deposit feeders; snails gastropods, not many cephalopods
•This shows Cambrian ocean floor was dominated deposit feeders
•Graptolites floating organisms in Ordovician time
•Brachiopod filtering sea water -- Ordovician time
•Horn coral
•Echinoderm -- Sea urchin -- Sea Star filter feeders, Ordovician
•Ancient climates during these periods

https://www.youtube.com/watch?v=VKGtWfEzhP0

parte 6

Invertebrate Fossils - Lesson 16 - Part 6 of 7
•Three different Cambrian faunas
•Organisms in geological time
•Conditions under which organisms had to live
•Echinoderm -- Sea urchin -- Sea Star filter feeders

https://www.youtube.com/watch?v=s5Tq76gfI8Y

parte 7

Invertebrate Fossils - Lesson 16 - Part 7 of 7
•History of the study of fossils
•Story of "The Lying Stones; Beringer study of fossils
•beringer fossil hoax

Geologo Canadiense , buen post .... buen resumen, un buen abstract de los 70s.