PUBLIC LECTURE NOVEMBER 2ND, 2012 – 7:30PM OPT 347 A PALEONTOLOGICAL JOURNEY TO THE BURGESS SHALE Canada’s Burgess Shale is famous for its exquisitely DEPARTMENTAL LECTURE preserved fossils of soft-bodied animals that evolved in NOVEMBER 2ND, 2012 – 1:30 PM PHYS 150 EVOLUTION’S BIG BANG: LESSONS FROM THE BURGESS SHALE the aftermath of the Cambrian Explosion, 505 million years ago. Discovered in 1909 by Charles Walcott, this UNESCO World Heritage site continues to be central to our understanding of the roots of modern biodiversity and modern ecosystems. In this talk, I will give an overview of the Burgess Shale and the research The “Cambrian Explosion” refers to the sudden conducted by the Royal Ontario Museum through appearance of animals in the fossil record around 542 a dedicated website developed by the ROM in million years ago and is one of the most pivotal, and yet partnership with Parks Canada (www.burgess- surprisingly one of the least understood, evolutionary shale.rom.on.ca). This website available in English and events in the entire history of life. Arguably the best French provides the most comprehensive and current record of life following this event comes from the Middle resource about the Burgess Shale to date. Last, I will also Cambrian Burgess Shale in Yoho National Park, British present some preliminary concepts for a new permanent Columbia. This site is world-famous for its exceptional gallery on Early Life at the Royal Ontario Museum. This preservation of abundant and diverse soft-bodied gallery is currently slated to open by 2014 and will cover animals ranging from arthropods, chordates, sponges to more than 3 billion years of evolution with the Burgess worms - Most of these organisms would stand no chance Shale playing a central part in this exhibit. of being preserved in normal fossil deposits, i.e. those which contain shelly remains only. Continuing discoveries, in particular fuelled by new fieldwork activities by the Royal Ontario Museum from the Burgess Shale, help us to revise our understanding of Cambrian life and the environments in which animals lived, interacted, and ultimately were preserved. In this talk, I will summarize our current state of knowledge about the Burgess Shale and emphasize the critical role that these fossils continue to play today in the study of bodyplan evolution and the origin of modern diversity. 2012 SPEAKER DR. JEAN-BERNARD CARON CURATOR OF INVERTEBRATE PALEONTOLOGY DEPARTMENT OF NATURAL HISTORY ROYAL ONTARIO MUSEUM WWW.BURGESS-SHALE.ROM.ON.CA