Ammonite sculpture with off-white ribbed shells on stand from Madagascar. Perisphinctes sp. - Upper Jurasic ( 163 -145 ma ) This exquisite sculpture of composed Perisphinctes sp. ammonites shows a beauty variation of ribbed ammonite shells in pastel off-white . A stable brass metal stand is providing a sophisticated display for this unique geological artifact. 12 x 13 x 6.5 cm ; 540 g Since it is not known when the auctioneer will post this offer online, it is uncertain whether the following information will be relevant. !!! According to DHL, packages picked up from our company on Friday, December 19th at noon will be delivered before Christmas in Belgium, France, Luxembourg, the Netherlands, Austria, and Switzerland. This requires payment to be completed via the Catawiki system by 8:00 AM on Friday, December 19th. For delivery before Christmas in Germany, payment via the Catawiki system is required by 8:00 AM on Monday, December 22nd.