Chalcedony pseudomorph / fossil after Gastropod (Hippochrenes volgensis)

Volga River Region, near settlement Batai in Saratov Region, Russia
Small Cabinet, 5.7 x 4.7 x 4.2 cm
Start Time: 05/12/2022 8:00:00 pm (CDT)
End Time: 05/19/2022 6:50:00 pm (CDT)
Auction Closed
Winning Bid: $310
Winning Bidder: Private Bidder

Item Description

We picked this piece up from a good friend in Tucson this year, and it's one of the better examples we've had to offer of this beautiful material. This showy and aesthetic small cabinet sized specimen is a really enticing piece due to the fact that it's an unusual pseudomorph and a fossil all in one. This piece features several beautifully fossilized spiral Gastropod (Hippochrenes volgensis) shells which have been completely replaced by gemmy smoky colored Chalcedony on matrix. The largest shell measures 2.8 cm long. Most of the shells are nearly complete, and have been exposed by sandblasting away the surrounding host rock. It's incredibly difficult to find ONE well-preserved fossil shell of this material on matrix, but to have MULTIPLE fossils on matrix is a big deal according to our friend. A rare opportunity to pickup an attractive and desirable pseudomorph / fossil specimen. For reference, the species Hippochrenes volgensis has only been known for a little over 30 years, as it was first described by Moroz & Yermokhina in 1991.

Bidding History

Bidder Bid Amount Bid Time
Private Bidder $310 05/19/2022 6:43:35 pm (CDT)
Private Bidder $300 05/19/2022 6:43:35 pm (CDT)
Private Bidder $290 05/19/2022 6:39:37 pm (CDT)
Private Bidder $280 05/19/2022 6:39:37 pm (CDT)
Private Bidder $260 05/19/2022 6:03:43 pm (CDT)
Private Bidder * $250 05/19/2022 6:03:09 pm (CDT)
Private Bidder * $250 05/19/2022 6:03:09 pm (CDT)
Private Bidder $175 05/19/2022 6:02:40 pm (CDT)
Private Bidder $165 05/19/2022 6:02:40 pm (CDT)
Private Bidder $121 05/19/2022 5:00:56 pm (CDT)
Private Bidder $111 05/19/2022 5:00:56 pm (CDT)
Private Bidder $95 05/19/2022 12:36:47 pm (CDT)
Private Bidder $85 05/14/2022 4:44:01 pm (CDT)
Private Bidder $75 05/14/2022 4:44:01 pm (CDT)
Private Bidder $60 05/14/2022 10:44:46 am (CDT)
Private Bidder $50 05/14/2022 10:43:52 am (CDT)
Private Bidder $48 05/14/2022 10:43:52 am (CDT)
Private Bidder $16 05/12/2022 8:19:31 pm (CDT)
Private Bidder $11 05/12/2022 8:19:30 pm (CDT)
Private Bidder $10 05/12/2022 8:14:43 pm (CDT)
* Proxy Bid Battle: In the event of two customers inputting matching proxy bids, the leading bid goes to the earliest of the two proxy bids. Tie winners are shown in bold.