tempo di lettura: 4 minuti . ARGOMENTO: BIOLOGIA PERIODO: 380 MA AREA: AUSTRALIA parole chiave: fossili, placodermi . Fossilised soft tissues, such as skin and muscle, are exceptionally hard to come by. When you think the chances of an animal being fossilised is less than one in a million – and these usually have only bone preserved – the chances […]
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