Fossil discoveries in China, such as Castorocauda, reveal that mammaliaformes during the Jurassic were far more diverse and specialized than previously thought. These ancient relatives of mammals included semi-aquatic species and others adapted to tunneling, climbing, and gliding, showcasing an early burst of evolutionary innovation.
- advanced mammalian jaws and ears
- ancient mammalian relatives
- angiosperms and mammals
- Castorocauda fossils
- Cretaceous ecological changes
- early mammalian evolution
- evolution of mammals
- evolution of placental mammals
- fur and warm-blooded traits
- Jurassic evolutionary innovation
- Jurassic mammaliaformes
- Jurassic-era mammals
- mammaliaformes diversity
- mammalian adaptations
- mammalian ecological niches
- mammalian fossil discoveries
- mammalian insectivores
- Pangea breakup evolution
- pbs eons
- rise of therians
- specialized mammalian ancestors
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