Baculite Fossil with Calcite crystals

Phillips County, Montana
Large Cabinet, 15.3 x 4.2 x 2.1 cm and 5.2 x 2.6 x 1.3 cm
Start Time: 09/03/2020 7:00:00 pm (CDT)
End Time: 09/10/2020 6:45:00 pm (CDT)
Auction Closed
Winning Bid: $200
View Closed Auction Set

Item Description

Here we have a wonderful example of the famous Baculite fossils from Montana. I'm not certain if this is from the Bearpaw Formation (Bearpaw Shale), it was only labeled as coming from Phillips County. The species for this material is Baculites compressus, and dates from the late Cretaceous formation (75-80 million years ago). These ancient cephalopods are fairly well-known from this locality. This piece is actually a two-part specimen, which fits back together very well, but were it not for the break, you wouldn't be able to see that the central chamber is loaded with attractive golden Calcite rhombs! It reminds me of the fossil clams from Florida which are often lined with Calcite. A fantastic example of this classic and hard to find material from Montana.

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Bidding History

Bid Amount Bid Time
$200 09/10/2020 6:05:57 pm (CDT)
$190 09/10/2020 6:05:56 pm (CDT)
$180 09/10/2020 6:05:51 pm (CDT)
$170 09/10/2020 6:05:51 pm (CDT)
$160 09/10/2020 11:09:00 am (CDT)
$150 * 09/10/2020 11:08:42 am (CDT)
$150 * 09/10/2020 11:08:42 am (CDT)
$68 09/06/2020 9:30:04 pm (CDT)
$58 09/06/2020 9:30:04 pm (CDT)
$10 09/04/2020 7:26:56 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.