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Books about Etruscus:
LE RHINOCEROS DE DUSINO (RHINOCEROS ETRUSCUS FALC.VAR. ASTENSIS SACC. by F. Sacco (1895)
The Rhinoceros etruscus from Castelnuovo Berardenga near Siena (Tuscany) positively belongs to the Pliocene by Pietro Cuscani Politi (1972)
Wiki information Etruscus:
Herennius Etruscus, was Roman emperor in 251, in a joint rule with his father Decius. Emperor Hostilian was his younger brother. Herennius was born in or near Sirmium in Pannonia, during one of his father's military postings. His mother was Herennia...
Ursus etruscus is an extinct species of mammal of the family Ursidae, endemic to Europe, Asia and North Africa during the Pliocene through Pleistocene, living from ~5.3 Mya—11,000 years ago, existing for approximately 5.289 million years. Ursus...