PODCAST

Palaeocast

A free webseries exploring the fossil record and the evolution of life on Earth.

science natural sciences

All Episodes

52:15

Episode 172: Rhynchocephalians

Palaeocast ·

2026/02/05

Today, there is only one living species of rhynchocephalian: the tuatara of Aotearoa/New Zealand. Despite today's paucity of species, this was once a diverse group of reptiles, with a wide range of lifestyles from swimming in the ocean to climbing trees. Once highly abundant around the world, reasons for their decline are still debated and may have had to do with competition from their relatives, the squamates, or changing environments. Rhynchocephalians are related to lizards and snakes within

01:34:04

Episode 171: Freshwater Mosasaurs

Palaeocast ·

2025/12/12

We've been given exclusive access to a brand new study examining the chemistry of a mosasaur tooth found within the Late Cretaceous Hell Creek Formation, North Dakota. The remarkable circumstances of how this tooth was discovered meant that multiple lines of chemical evidence could be reliably gathered, each acting as a powerful palaeoenvironmental proxy providing clues as to how and where this giant aquatic predator lived. The results of the study now mean that a revision of mosasaur palaeoecology

57:25

SVP 2025

Palaeocast ·

2025/12/03

01:50:19

Episode 170: Cariocecus bocagei

Palaeocast ·

2025/09/19

The iguanodontians were an incredibly successful group within the Cretaceous. They could reach incredible sizes, with the largest species even matching the proportions of some sauropods, and they also had an incredible palaeogeographic range, meaning that their remains are found all over the world today. In the late Jurassic, they were a lot less diverse and much smaller, so the late Jurassic and early Cretaceous are key times for understanding the evolution of this group. Cariocecus bocagei is a

49:05

Episode 169: Grasslands Pt2

Palaeocast ·

2025/09/13

Grassy biomes, including grasslands, savannahs and crops, cover over 40% of all land on Earth. They play a significant role in carbon and silica cycles and have a large impact upon the climate. Grasslands (grass-dominated ecosystems) have shaped the evolution of numerous groups of organisms, most obviously grazing mammals, and can support a huge amount of biodiversity. Humans evolved in the savannas and through domestication of grasses formed agriculture, leading to a modern diet dominated by

01:07:30

Episode 168: Grasslands Pt1

Palaeocast ·

2025/09/02

51:01

Episode 167: Origin of Teeth Pt2

Palaeocast ·

2025/08/15

Determining the origin of teeth in vertebrates is an incredibly significant but notoriously difficult problem within palaeontology. Teeth didn’t evolve in the mouths of our ancestors, but are first seen as part of the external skeletons of jawless fish as structures called ‘odontodes’. These would later migrate into the mouth with the evolution of jaws, becoming the teeth we have today, but odontodes still remain present in the skin of modern cartilaginous fish, giving them their rough texture. The

43:31

Episode 166: Origin of Teeth Pt1

Palaeocast ·

2025/08/01

Determining the origin of teeth in vertebrates is an incredibly significant but notoriously difficult problem within palaeontology. Teeth didn't evolve in the mouths of our ancestors, but are first seen as part of the external skeletons of jawless fish as structures called 'odontodes'. These would later migrate into the mouth with the evolution of jaws, becoming the teeth we have today, but odontodes still remain present in the skin of modern cartilaginous fish, giving them their rough texture.

49:34

Episode 165: Ants Pt2

Palaeocast ·

2025/07/15

Ants are a hugely successful family of eusocial insects with over 14,000 modern species described. They are known from every continent except Antarctica and show a wide range of ecologies. Whilst many of us are familiar with their highly organised social structures and castes, there still remain a lot of public misconceptions about how their societies function. The evolutionary history of ants is equally as impressive, with roughly as many fossil ant species known as there are of dinosaurs! Since

44:05

Episode 164: Ants

Palaeocast ·

2025/07/01

01:23:59

Episode 163: Ecosystem Engineers

Palaeocast ·

2025/02/22

An ecosystem can be described as all the interactions that occur between organisms and their physical environment. The processes acting within an ecosystem operate on a wide range of spatial and temporal scales and include both biotic and abiotic factors. Ecosystem engineers are those species that have a significant impact on the availability of resources to other species and can be responsible for the creation, maintenance, modification or destruction of an ecosystem. The introduction, or even

01:29:36

Episode 162: Cerney Wick

Palaeocast ·

2024/07/23

49:17

Episode 161: Notosuchians

Palaeocast ·

2024/06/15

Found in the fossil record between the Jurassic and the middle Miocene, Notosuchia was a highly diverse and strange group of crocodylomorphs, most notable for their terrestrial lifestyle. Joining us for today’s episode is Dr Yohan Pochat-Cottilloux from the Laboratoire de Géologie de Lyon, who specialises in the study of crocodylomorphs. Together, we will explore the wide range of scientific methodologies that have so far been used to study the lives of these strange reptiles and discuss how they

01:06:41

Episode 160: An introduction to Evolutionary Biology

Palaeocast ·

2024/03/22

The field of evolutionary biology has been greatly influenced by the development of modern genetic methodology. The understanding of genes, genomes and the molecular mechanisms key to life on Earth are all goals of evolutionary biology in the 21st century, yet its potential applications seem to be near limitless. Palaeontology and evolutionary biology continue to be closely related and both, with their deeply rooted origins, have been essential to our understanding of macroevolution (major

01:02:52

Episode 159: An Introduction to Palaeontology

Palaeocast ·

2024/02/19

In 12 years of podcasting, we have never actually taken the time to address the fundamentals of our field. Such questions could include: what is palaeontology, what is a fossil, how does one become a palaeontologist, and why is palaeontology important? For what should have been our very first episode, we've invited Prof. Roy Plotnick, University of Illinois Chicago, to help us outline everything you need to know about the field of palaeontology. Roy has had a long and varied palaeontological

58:17

200 Years of Dinos

Palaeocast ·

2024/02/07

It's been two centuries since the first dinosaur, Megalosaurus, was named by William Buckland and to commemorate the date, the Natural History Museum hosted '200 Years of Dinosaurs: Their Rise, Fall, and Rebirth'. This international conference provides a snapshot of dinosaur research in 2024, demonstrating just how far our understanding of this group has come since 1824. In our coverage of this event, we speak to many of the leading palaeontologists in the field, as we look back over the last 200

37:31

Episode 158: Ceoptera evansae

Palaeocast ·

2024/02/06

The Middle Jurassic is incredibly important to our understanding of pterosaur evolution; however, the remarkable rarity and incompleteness of Middle Jurassic pterosaurs has long hampered scientific understanding of the lineage. Joining us this episode on the other side of the microphone is one of Palaeocast’s own team members, Dr Liz Martin Silverstone, a Technical Specialist at the University of Bristol who has recently described

49:13

Episode 157: The Carnegie Diplodocus

Palaeocast ·

2023/12/08

Originally mounted in 1907, the Carnegie specimen is the best example of the sauropod dinosaur Diplodocus, and perhaps the most famous dinosaur skeleton in the world. Casts of the specimen, including the London example known as “Dippy”, were distributed around the world during the early 1900s, and a final concrete cast was even created in 1957 for the Utah Field House at Vernal. Although the moulds used to create these casts were lost sometime during the 1960’s, new ones created from the concrete

37:11

Life On Our Planet 8.4 - Dan Tapster

Palaeocast ·

2023/11/09

LOOP 8.4: LOOP Showrunner Dan Tapster returns to give a retrospective on the series and its production. We look at went well and address criticisms; is it possible to keep everyone happy? We finish this series by discussing the show’s take-home messages and Dan’s hopes for Life On Our Planet’s legacy. Life On Our Planet (LOOP) is a new 8-part series created for Netflix by Silverback Films and Amblin Television. This Steven Spielberg produced series, narrated by Morgan Freeman, is hugely ambitious in

33:28

Life On Our Planet 8.3 - Sophie Lanfear

Palaeocast ·

2023/11/09

LOOP 8.3: Episode 8’s producer, Sophie Lanfear, joins us again to describe how difficult it was to wrap the series up, having to balance telling the story of the last ice age with conveying the message of the series. We speak about climate change and the 6th mass extinction and try to find any positives. Ultimately, if documentaries keep having to make this point, is the message really getting through? Life On Our Planet (LOOP) is a new 8-part series created for Netflix by Silverback Films and

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