CompuServe Thread

Moroccan Fossils

5 messages in this thread
#137395From: Joseph Y. MurakamiJul 14, 1994 12:55 AM
Dear Mike, I'm obviously new to this forum. From your answer to Rob Sacks about collecting 300 lb of Green River fossils, I can only assume that you're very involved in the hobbie. Are you involved in the retail end?? Regarding the "faked" Moroccan fossils, I've seen many plaster or calcium monohydrate cast reproductions of those large Moroccan Phacops, but I would think that only a cursory look at the matrix stone would alert even the casual observer to a cast reproduction. I've never seen these casts misrepresented anywhere. However, I have recently seen several large trilobites that made me wonder… I saw several Dicranurus monstrosus of about 3" size, very well prepared on the same dark black marble matrix I'm used to seeing the Phacops on. Their forms looked so identical that I took a photo to compare to my own specimen. As expected, the matrix and the pose of the specimen was slightly different. Whew! I'm also familiar with those large 6-15 inch long Paradoxides from Morroco. Beautiful, painted a tanned ochre like limonite on well-prepared platters, each specimen weighing from 5-20 lb. I couldn't resist and acquired one when I was in Seattle a few years back. Then recently I saw an astounding picture of a Selenopeltis 7" specimen ($1000) on the same marble matrix,..then another one of similar size at the local Nature store right here in Honolulu! Then I saw a photo of a beautiful Koneprusia brutoni trilobite 1.5" again chipped out of the same dark matrix. Of course, I know they're genuine. But, they must be so plentiful! I can imagine cheap labor and all, but they must really have a mother-lode of beautiful available, somewhat affordable fossils and an army of technicians chipping away, preparing them. Makes me wish I could go to Morocco if only to see where these fossils really come from,…and maybe score a bunch of really primo specimens!! Can you or anyone tell me about Morocco?? There's precious little information on the giant Paradoxides, the multitude of 5-6" Phacops, and the Dicranurus. And their "prices" are so reasonable compared to Ardmore, Oklahoma's prices… Incidentally, I did have problems with mold growing on my Hoekaspis and my Hemirrhodon amplipyge specimens. This was really gross, to think that there was enough biologically active stuff on my fossils that can still decay after all these hundreds of millions of years! I think the specimens are stable enough to take a blast of Tilex, but I really ought to ask someone who knows…. Will look forward to any replies… -Joseph
#137535From: SyndesisJul 15, 1994 9:30 AM
I, too, have wondered about the fossil business in Morocco. It must be extensive. But I also have a vague memory of hearing that their government has grown concerned about this outflow of natural manterial, and was going to clamp down on it… Mold eating away at stone fossils? There couldn't be any biological mmaterial left. It mmust've been eating something else.
#137614From: Joseph Y. MurakamiJul 16, 1994 1:49 AM
John, I swear to god that it's mold growing on my Hoekaspis and my Hemirhodon amplipyge. On a separate case a few feet away, I also had some antlers I was saving to use to pressure-flake my stash of flint, and the antlers were similarly blighted with a light dusting of mold, complete with a powdery blanket of spores shadowing the antlers on bare glass. The humidity in Hawaii's pretty high, though nothing like Hong Kong or Thailand. Anyway, all the adjacent fossils to the above-mentioned trilobites are entirely free of "mold." There's got to have been some sort of organic residue or carbon-film that provided enough nutrients for the saprophytes. I was entirely disgusted with the whole thing!! Thank goodness none of my coprolites were moldy! That would've been too much. Incidentally, does anyone out there in cyberspace have any Moroccan connections here (USA) to access specific specimens??? -Joseph
#137634From: SyndesisJul 16, 1994 9:14 AM
I'd guess that even a thin layer of dust would enough to feed some molds or fungi. It may be that they found enough to eat in a crack, and then grew a little further looking for more. Maybe you need a sealed case with a can of dessicant.
#137702From: Michael SternbergJul 16, 1994 8:16 PM
Welcome to the forum Joseph I am definitely not a dealer, just a distracted collector. I am by no means knowledgeable about all Moroccan fossils, and am particularly ignorant about trilobites. My aspersion is based on the "ugly" polished orthecera and other ammonites. My main interests are of local Miocene marine fossils (Olympic Peninsula region) and Eocene plant fossils (Chuckanut Formation) Michael