This breed  was obtained in Tuscany (Italy) by crossbreeding and successive crosses  between Maremmana and Chianina breeds. 
It was  extinguished because those breeding areas had been abandoned. Recently the  above mentioned crossbreeding has been restored and there are some heads that  in any case are not to be considered as a breed but simply a crossbreed between  Maremmana and Chianina.
“Pasturina: a modest group of cattle in  Casentino area (Arezzo) crossbred between the local Podolica (Maremmana) and the prevailing  Chianina. The heads have lyre shaped horns, white coat shading to grey, quite  short strong limbs, dark skin. They are mainly apt to labour.” (pag. 518 of  “Bovini” – Torino-Ottavio Parisi). 
		  Pasturina - Cow (photo www.consdabi.org)