domingo, 25 de noviembre de 2012

Nimbadon lavarackorum, una especie de koala que vivió en Australia hace 15 millones de años


Científicos de la Universidad de nueva Gales del Sur y la Universidad de Adelaida de Australia, han estudiado sobre el esqueleto de una especie conocida como Nimbadon lavarackorum, que fue descubierto en el yacimiento Queesland. (Patrimonio de la Humanidad).

Nimbadon pertenece a un grupo extinto de marsupiales llamados diprotodontoids. Este grupo incluía a los mamíferos más grandes en los ecosistemas australianos durante al menos los últimos 25 millones de años, hasta su extinción hace unos 30.000 años.



La investigación ha revelado que el marsupial vivió hace 15 millones de años, pesaba unos 70 kilos y tenía unas poderosas extremidades para escalar a los troncos de los árboles.

Los científicos han comparado el esqueleto de  Nimbadon con animales vivos, como el koala, la zarigüeya , el oso malayo... y han visto que era lo más parecido a un koala.

Hoy en día, el marsupial con más peso en subirse a los árboles es el canguro, Bennett , que puede llegar a pesar hasta 14 kg.

El artículo ha sido publicado esta semana en PloSone


(Ilustración: Peter Schouten)

WorldNews Australia  AustralianGeographic

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