FossilizedJello Posted June 23, 2017 Share Posted June 23, 2017 Hey, I'm going to post some pictures of fossils from Big Brook from about 20 hours of collecting. Some I need ID which ill state and others I would just like to share! Thanks, any help in IDing would be appreciated. Due to the size limit im going to make multiple threads. 1. Unknown bone 2. Unknown jaw and teeth, maybe muskrat or something else? 3. Unknown bone #2 4. Ray? not sure 5. Possible imprint, most likely nothing special 6. Unknown vertebra proceed to next thread.. Link to comment Share on other sites More sharing options...
Al Dente Posted June 23, 2017 Share Posted June 23, 2017 Your #4 is a piece of ammonite. It is half of a cast of a chamber. Link to comment Share on other sites More sharing options...
FossilizedJello Posted June 23, 2017 Author Share Posted June 23, 2017 58 minutes ago, Al Dente said: Your #4 is a piece of ammonite. It is half of a cast of a chamber. It seems like it, found it on the link you sent me, and also identified one of my buddies fossil he found. Turns out he found a cow nosed ray fossil. Link to comment Share on other sites More sharing options...
erose Posted June 23, 2017 Share Posted June 23, 2017 #5 appears to be a concretion. Link to comment Share on other sites More sharing options...
FossilizedJello Posted June 23, 2017 Author Share Posted June 23, 2017 2 hours ago, erose said: #5 appears to be a concretion. So basically two different layers of sediment or material? Link to comment Share on other sites More sharing options...
erose Posted June 23, 2017 Share Posted June 23, 2017 55 minutes ago, FossilizedJello said: So basically two different layers of sediment or material? Concretions generally grow from a central nucleus. That could be just something in the matrix around which the minerals grew. Sometimes it's a fossil and sometimes not. And maybe the fossil is completely gone. The Monmouth sediments are full of concretions. Many of them are iron minerals such as Limonite or Hematite. In addition there are Phosphatic nodules. All take on strange forms and are notorious fossil look-alikes. After you collect there a number of times you will get a feel for what is fossil and what is not. In the mean time never hesitate to bring home something you are not sure of. Link to comment Share on other sites More sharing options...
Coco Posted June 24, 2017 Share Posted June 24, 2017 Hi, 2 is probably lagomorph (rabbit family). Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
FossilizedJello Posted June 24, 2017 Author Share Posted June 24, 2017 20 hours ago, erose said: Concretions generally grow from a central nucleus. That could be just something in the matrix around which the minerals grew. Sometimes it's a fossil and sometimes not. And maybe the fossil is completely gone. The Monmouth sediments are full of concretions. Many of them are iron minerals such as Limonite or Hematite. In addition there are Phosphatic nodules. All take on strange forms and are notorious fossil look-alikes. After you collect there a number of times you will get a feel for what is fossil and what is not. In the mean time never hesitate to bring home something you are not sure of. I see, thanks for the explanation. Ill have to do a little research on some of these so I wont get fooled. My buddy always thinks things aren't but like you say if you thing something may be a fossil, take it. Things are a lot clearer the next day when its dried off and such. 10 hours ago, Coco said: Hi, 2 is probably lagomorph (rabbit family). Coco Seems it, thanks. Any idea of how old it may be? Link to comment Share on other sites More sharing options...
Max-fossils Posted June 25, 2017 Share Posted June 25, 2017 22 hours ago, FossilizedJello said: Seems it, thanks. Any idea of how old it may be? Most likely Pleistocene, as fossils from Big Brook are often Cretaceous, with the exception of some Pleistocene bones. And rabbits hadn't evolved yet during the Cretaceous. It might also be modern, do a flame test to check. If it burns, you just have modern bone. If it doesn't, then you have a Pleistocene bone, and in that case that's a very cool find! Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
FossilizedJello Posted June 27, 2017 Author Share Posted June 27, 2017 On 6/25/2017 at 11:06 AM, Max-fossils said: Most likely Pleistocene, as fossils from Big Brook are often Cretaceous, with the exception of some Pleistocene bones. And rabbits hadn't evolved yet during the Cretaceous. It might also be modern, do a flame test to check. If it burns, you just have modern bone. If it doesn't, then you have a Pleistocene bone, and in that case that's a very cool find! I see, thanks for the insight. I did the burn test (i did not know existed before recently) on all my bones. The jaw we are discussing and #1 on this post and another bone on one other post turn out to be most likely modern. :(. However the other bone , #3 did not. Link to comment Share on other sites More sharing options...
Max-fossils Posted June 28, 2017 Share Posted June 28, 2017 15 hours ago, FossilizedJello said: I see, thanks for the insight. I did the burn test (i did not know existed before recently) on all my bones. The jaw we are discussing and #1 on this post and another bone on one other post turn out to be most likely modern. :(. However the other bone , #3 did not. Shame... the rest are still cool finds Max Derème "I feel an echo of the lightning each time I find a fossil. [...] That is why I am a hunter: to feel that bolt of lightning every day." - Mary Anning >< Remarkable Creatures, Tracy Chevalier Instagram: @world_of_fossils Link to comment Share on other sites More sharing options...
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