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Trilobites: An Introduction

Palaeontologist, Hidden HorizonsDirector, Yorkshire Fossil Festival

Dr Liam Herringshaw

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Welcome!

Visit trilobites.info – it’s brilliant!Which specimen catches

your eye?

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What is a trilobite?

Edward Llwyd’s flatfish (1698)

Ogygiocarella debuchiCarmarthen, Wales

(images from NationalMuseum of Wales)

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What is a trilobite?

(image from WikimediaCommons)

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Trilobites = arthropods

Regier et al. (2010) https://www.nature.com/articles/nature08742

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Trilobite variety

Which one of your 13 might NOT be a trilobite?

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Agnostics & paradoxes

Image from trilobites.info

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Cambrian originsCambrian arthropods (Dr David Legg)

Cambrian trilobites(Paterson et al., 2019)

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Ordovician diversity

AsaphuscornutusOrdovician,St Petersburg

Anything note-worthy about it?

Also: Cybeloides girvanensis, Geragnostus callavei, Onnia superba

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Silurian splendour

Dudley Bug and the Black Country beauties

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On a Moroccan roll

Trilobites from the Devonianof Morocco

LapworthMuseum of Geology, Birmingham

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End = Permian

Image from trilobites.info

(image from Wikimedia Commons)

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Next week:

Today’s slides are onwww.fossilhub.org

Heads or tails?

Trilo-sight

Trilobite life

Paralejurus, DevonianMorocco(WikimediaCommons)

Q. What do you call a trilobite with no eyes?

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