Come sanno i Paleontologi dove trovare i fossili? – Video –

Stefano Rossignoli 9 settembre 2011

Un breve video che racconta il modo in cui spesso vengono trovati i siti di scavo fossiliferi!

Inizialmente imbarazzato, ma mi auguro migliorerò col tempo!

Lasciate un commento qui sotto, Grazie!
Alla prossima.

Esplorando il Monte San Giorgio e la festa UNESCO

L’8-9 e 10 aprile si festeggiava in diversi comuni italiani e svizzeri l’inserimento del Monte San Giorgio nel patrimonio dell’UNESCO…
In quanto collaboratore di uno dei responsabili scientifici, sono stato invitato insieme ad un paio di mie colleghe (Veronica e Gaia) ad accogliere gli escursionisti presso un sito di scavo storico degli anni 70 e poi successivamente ad accogliere una fotografa (Francesca) di ti-press ad un altro sito di scavo storico (al Sasso Caldo) attivo fino al 2004 in cui è stato trovato il famoso Besanosaurus leptorincus un rettile marino lungo 6m visibile presso il museo di storia naturale di Milano ed il museo di Besano…

L’8-9 e 10 aprile si festeggiava in diversi comuni italiani e svizzeri l’inserimento di tutto il Monte San Giorgio nel patrimonio dell’UNESCO…
Anche il ‘lato’ italiano (quello svizzero era già stato inserito nel 2003) del Monte San Giorgio è stato inserito nell’UNESCO per l’importanza dei suoi fossili che risalgono al Triassico Medio (periodo tra i 240 e 230 milioni di anni fa ca.).

Photogallery

Lo studio di questi fossili comincià nella seconda metà del 1800 da parte italiana a causa del fatto che alcune rocce della montagna, venivano estratte (in miniere a cielo aperto o in gallerie) per il loro ricco contenuto in bitume. Queste rocce sono appunto gli scisti Bituminosi della ‘Formazione di Besano’ o ‘Grenzbitumenzone’ datata al limite tra Anisico e Ladinico (Trias. Medio). Gli operai trovavano fossili e così, venivano seguiti dagli scenziati del tempo, come i vari e famosi Stoppani, De Alessandri… Agli inizi del 900 anche sul lato svizzero ci furono le prime ricerche scientifiche da parte ad esempio del Professor Peyer… Durante le sue campagne di scavo degli anni 30 venne estratto il Ceresiosaurus (Conservato a Zurigo ma di cui è visibile il calco al Museo dei fossili di Meride (non in questi giorni per ragioni di spazio…) e in quello di Storia Naturale di Milano). I siti studiati  a fine 800 inizi 900 vennero poi ristudiati con rigore scientifico tramite scavi sistematici condotti da università e musei svizzeri, italiani, considerando Leggi tutto “Esplorando il Monte San Giorgio e la festa UNESCO”

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