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avatar_Halichoeres

Laffonia: a ratfish egg case?

Started by Halichoeres, February 21, 2025, 07:27:08 PM

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Halichoeres

February 21, 2025, 07:27:08 PM
Laffonia is a fossil from the Jurassic of Switzerland that has been interpreted as a ctenophore or other soft-bodied animal. This paper argues that it is instead an egg case from a holocephalan similar to a modern short-nosed chimera. There are a few chimeras known from body fossils around the same time, such as Ischyodus, but they're pretty different from, for example, Hydrolagus. This might suggest they go back a bit farther than we thought.


Laffonia is C

Open access in Swiss Journal of Palaeontology: https://sjpp.springeropen.com/articles/10.1186/s13358-025-00352-x
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