Uno scheletro composito di tirannosauro rex (T-Rex) è stato venduto all'asta per 4,8 milioni di franchi oggi, martedì, a Zurigo. Era stato stimato tra i sei e gli otto milioni di franchi. Si tratta della prima vendita di questo tipo in Europa e della terza al mondo.
Lo scheletro, denominato "TRX-293 Trinity", è alto 3,9 metri e lungo 11,6 metri. Ha un'età compresa tra i 65 e i 67 milioni di anni ed è composto da 293 ossa originali (50,2% dello scheletro) di tre diversi T-Rex rinvenuti in Montana e Wyoming (Stati Uniti nord-occidentali) tra il 2008 e il 2013 e da riproduzioni ossee (49,8%).
Le ossa del cranio di "Trinity" provengono dallo stesso scheletro. Il suo livello di conservazione è "incredibilmente buono", secondo la casa d'aste Koller.
Fino al 2021 sono stati trovati solo 32 T-Rex fossili, la maggior parte dei quali senza cranio. Quasi tutti si trovano nei musei.
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