Episode 172: Rhynchocephalians

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 Lepidosauria, but despite their outward appearance, are not lizards themselves and have a number of differences that make them distinct. In this interview, we speak to Dr. Victor Beccari, an expert in rhynchocephalians, and discuss this and more about this fascinating group of reptiles.

You can listen to Episode 172: Rhynchocephalians online on Radio and Podcast. Open the player on this page to stream the available audio.

Episode 172: Rhynchocephalians is an episode from Palaeocast by Dave Marshall.

This episode is 52:15 long.

This episode was published on Feb 5, 2026.

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