We Welcome! Which specimen catches your eye? Visit - PDF document

12/8/20 Trilobites: An Introduction Dr Liam Herringshaw Palaeontologist, Hidden Horizons Director, Yorkshire Fossil Festival 1 We Welcome! Which specimen catches your eye? Visit trilobites.info – it’s brilliant! 2 Wh What is is a tr trilobite? Ogygiocarella debuchi Carmarthen, Wales (images from National Museum of Wales) Edward Llwyd’s flatfish (1698) 3 1

12/8/20 Wh What is a trilobite? (image from Wikimedia Commons) 4 Trilobites = Tr = art rthropods Regier et al. (2010) https://www.nature.com/articles/nature08742 5 Tr Trilobite variety Which one of your 13 might NOT be a trilobite? 6 2

12/8/20 Agn gnostics cs & par arad adoxes es Image from trilobites.info 7 Ca Cambr brian n or origins Cambrian arthropods (Dr David Legg) Cambrian trilobites (Paterson et al., 2019) 8 Or Ordovician diversity Asaphus cornutus Ordovician, St Petersburg Anything note- worthy about it? Also: Cybeloides girvanensis , Geragnostus callavei , Onnia superba 9 3

12/8/20 Si Silurian sp sple lendour Dudley Bug and the Black Country beauties 10 On On a Mo Moroccan roll Trilobites from the Devonian of Morocco Lapworth Museum of Geology, Birmingham 11 En End = Permian Image from trilobites.info (image from Wikimedia Commons) 12 4

12/8/20 Ne Next week: Today’s slides are on Heads or tails? www.fossilhub.org Trilo-sight Paralejurus , Devonian Morocco (Wikimedia Trilobite life Commons) Q. What do you call a trilobite with no eyes? 13 5