Robert Sansom
@fossilrob.bsky.social
1.1K followers
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190 posts
Palaeobiologist in Manchester | Fossils, Parenting, Animal Evolution, Fish, Phylogeny, Existential Despair, Taphonomy, and occasionally Eurovision
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Robert Sansom
@fossilrob.bsky.social
· Sep 2
Robert Sansom
@fossilrob.bsky.social
· Sep 2
A phylogeny for Heterostraci (stem‐gnathostomes)
The armoured jawless fishes (‘ostracoderms’) are major and widespread components of middle Palaeozoic ecosystems. As successive branches on the gnathostome stem lineage, they represent the early sequ...
onlinelibrary.wiley.com