Sassy PaleoNerd Posted December 20, 2019 Share Posted December 20, 2019 Hello there! A year ago I bought a fossil fish from Brazil at a convention, yet I am unaware of the animals genus. The fossil has a lenght of 37 cm's, and a skull the lenght of 7 cm. 0,7 cm is the average lenght of the individual vertebrae, 39 vertebrae are vsible in the fossil. Skull bones: Maxilla: 4 cm Subopegulum: 4.6 cm (lenght) 3 cm (height) Operculum: 4.6 cm (lenght) 3.5 cm (height) Dentary: 3,2 cm Height of Tail Fin: 7.9 cm Age Location: Presumably Romualdo Formation, based on Matrix and Preservation Aptian-Albian More Pictures in the comments, I am, somehow to dumb to know how to make an image smaller Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 There you go Link to comment Share on other sites More sharing options...
Xiphactinus Posted December 20, 2019 Share Posted December 20, 2019 Looks a bit like a “Frankenstein-fish” I see a connection between the head and body, the tail looks too small, and the entire fish looks like it’s in an artificial matrix That being said, I’m no expert at all on the Brazilian fish. 3 Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 20, 2019 Share Posted December 20, 2019 Definitely a franken-fish. 3 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Ptychodus04 Posted December 20, 2019 Share Posted December 20, 2019 I'm not convinced this is a composite. I've prepped a ton of these fish concretions both from Brazil and Morocco and the fish in them are often really messed up. I don't think the vertebrae are differently sized. Rather, I think it is a very poor prep and the vertebrae have been prepped away in areas. There is definitely filler between the head and the body but that could just be where the concretion broke. 1 Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 20, 2019 Share Posted December 20, 2019 That said, the skull does resemble a very small Cladocyclus sp. As a side note, anyone interested in the fish from Brazil should get a copy of "Santana Fossils: An Illustrated Atlas" ... edited by John Maisey. 3 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 20, 2019 Share Posted December 20, 2019 2 minutes ago, Ptychodus04 said: I'm not convinced this is a composite. I've prepped a ton of these fish concretions both from Brazil and Morocco and the fish in them are often really messed up. I don't think the vertebrae are differently sized. Rather, I think it is a very poor prep and the vertebrae have been prepped away in areas. There is definitely filler between the head and the body but that could just be where the concretion broke. I am unsure, due to the weird anal fin area. Those look like regular ribs, to me? A photo of the back side may help to discern it's authenticity. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 1 minute ago, Ptychodus04 said: I'm not convinced this is a composite. I've prepped a ton of these fish concretions both from Brazil and Morocco and the fish in them are often really messed up. I don't think the vertebrae are differently sized. Rather, I think it is a very poor prep and the vertebrae have been prepped away in areas. There is definitely filler between the head and the body but that could just be where the concretion broke. It's indeed broken at those points, the cross section shows that it's the same material, not sure about the fin though, it's indeed the part I was worryed about. @Fossildude19 @Xiphactinus Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 6 minutes ago, Fossildude19 said: I am unsure, due to the weird anal fin area. Those look like regular ribs, to me? A photo of the back side may help to discern it's authenticity. I will post a photo of the backside of the fossil once I get home then Link to comment Share on other sites More sharing options...
doushantuo Posted December 20, 2019 Share Posted December 20, 2019 I'd never buy a fish with a "subopegulum", BTW. In other words, Sassy: I think that's a spelling mistake. Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 6 minutes ago, doushantuo said: I'd never buy a fish with a "subopegulum"",BTW. In other words,Sassy: I think that's a spelling mistake darn it! I meant subopergulum Link to comment Share on other sites More sharing options...
doushantuo Posted December 20, 2019 Share Posted December 20, 2019 Still not right. Hint: If there's an operculum Taphonomywise, your specimen is slightly reminiscent of: (from: Starr Jordan's Peixes Cretaceos de Ceara) Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 14 minutes ago, doushantuo said: still not right Hint: if there's an operculum Taphonomywise,your specimen is slightly reminiscent of It looked like a g on this image ): Link to comment Share on other sites More sharing options...
doushantuo Posted December 20, 2019 Share Posted December 20, 2019 Hey, no worries, you don't have to explain. I my mistakes on this forum were laid end to end, we might yet end up with a road to the Cassini division. 1 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted December 20, 2019 Share Posted December 20, 2019 Just now, doushantuo said: hey,no worries,you don't have to explain. I my mistakes on this forum were laid end to end,we might yet end up with a road to the Cassini division Which is coincidentally where my Secret Santa gift went via. And "I my..." proves your point. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
doushantuo Posted December 20, 2019 Share Posted December 20, 2019 I dont want to get legal with you, but the omishun of the eph waz delibberut. 1 Link to comment Share on other sites More sharing options...
oilshale Posted December 20, 2019 Share Posted December 20, 2019 This is a Cladocyclus gardneri. In any case not well preserved and prepared - possibly also partly composed of several specimens. I also have such a thing - doesn't look better either. They're like this - if you don't want to spend real money…. 4 Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
doushantuo Posted December 20, 2019 Share Posted December 20, 2019 OK Link to comment Share on other sites More sharing options...
oilshale Posted December 20, 2019 Share Posted December 20, 2019 This is from the book "Santana Fossils: An Illustrated Atlas" ... edited by John Maisey. 2 Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 Backside @Fossildude19 Link to comment Share on other sites More sharing options...
goatinformationist Posted December 20, 2019 Share Posted December 20, 2019 So, no one else noticed the look of utter fright/surprise in the first picture? Link to comment Share on other sites More sharing options...
oilshale Posted December 20, 2019 Share Posted December 20, 2019 2 hours ago, Sassy PaleoNerd said: Backside @Fossildude19 By the way, the matrix around the fish is added - this is (very likely) not the original matrix in which the fish was found (might be concrete or mortar). Please take a picture of the edge of the broken part. 1 Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
Sassy PaleoNerd Posted December 20, 2019 Author Share Posted December 20, 2019 1 hour ago, oilshale said: By the way, the matrix around the fish is added - this is (very likely) not the original matrix in which the fish was found (might be concrete or mortar). Please take a picture of the edge of the broken part. Here you go Link to comment Share on other sites More sharing options...
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