MarielleK Posted January 9, 2018 Share Posted January 9, 2018 So this is my second fish post of the night. Just wanted to know what this guy was, and the time period it may have come from. Thank you! Link to comment Share on other sites More sharing options...
Ludwigia Posted January 9, 2018 Share Posted January 9, 2018 @oilshale ? Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 9, 2018 Share Posted January 9, 2018 What is the size of this item? My initial impression is that it is a Rhacolepis buccalis, from the Cretaceous, of Brazil. Size would help, though. 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...
Rockwood Posted January 9, 2018 Share Posted January 9, 2018 1 hour ago, Fossildude19 said: What is the size of this item? My initial impression is that it is a Rhacolepis buccalis, from the Cretaceous, of Brazil. Size would help, though. Would it have been colored, or are some of them naturally darker ? Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 9, 2018 Share Posted January 9, 2018 7 minutes ago, Rockwood said: Would it have been colored, or are some of them naturally darker ? Dale, It looks like there is some sort of coating applied to this. I don't think it is colored. They did range in color a bit, but, this also doesn't look like the typical concretions from there. Could be from a different member of the Crato Formation, or elsewhere from the Araripe Basin . Another shot of the back would help some. @MarielleK Is the back rounded at all, or perfectly flat? 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...
oilshale Posted January 9, 2018 Share Posted January 9, 2018 I'd be more leaning towards Notelops brama Agassiz, 1841. Operculum and suboperculum seems to fit better. Compare the head bones in Fig. 20 of this paper from Brito et al.: An updated review of the fish faunas from the Crato and Santana formations in Brazil a close relationship to the Tethys fauna.pdf Nice fish! Thomas 3 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...
Fossildude19 Posted January 9, 2018 Share Posted January 9, 2018 9 minutes ago, oilshale said: I'd be more leaning towards Notelops brama Agassiz, 1841. Operculum and suboperculum seems to fit better. Compare the head bones in Fig. 20 of this paper from Brito et al.: An updated review of the fish faunas from the Crato and Santana formations in Brazil a close relationship to the Tethys fauna.pdf Nice fish! Thomas Thanks for the correction, Thomas! Notelops brama looks like a match to me. Well done, sir. 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...
MarielleK Posted January 9, 2018 Author Share Posted January 9, 2018 4 hours ago, Fossildude19 said: What is the size of this item? My initial impression is that it is a Rhacolepis buccalis, from the Cretaceous, of Brazil. Size would help, though. 3 hours ago, Fossildude19 said: Dale, It looks like there is some sort of coating applied to this. I don't think it is colored. They did range in color a bit, but, this also doesn't look like the typical concretions from there. Could be from a different member of the Crato Formation, or elsewhere from the Araripe Basin . Another shot of the back would help some. @MarielleK Is the back rounded at all, or perfectly flat? It is about 7-10 inches long with a rounded back. Link to comment Share on other sites More sharing options...
RJB Posted January 9, 2018 Share Posted January 9, 2018 3 hours ago, Fossildude19 said: Is the back rounded at all, or perfectly flat? Yeah, with that layering of sediment above the head would tell someone with out seeing it that it very may well be flat on the bottom? RB Link to comment Share on other sites More sharing options...
Rockwood Posted January 9, 2018 Share Posted January 9, 2018 34 minutes ago, RJB said: Yeah, with that layering of sediment above the head would tell someone with out seeing it that it very may well be flat on the bottom? RB These concretions are to some degree layered (stratified). They would almost have to be for there to be such a number of good splits. Link to comment Share on other sites More sharing options...
MarielleK Posted January 9, 2018 Author Share Posted January 9, 2018 It is not flat on the bottom, it is rounded. Link to comment Share on other sites More sharing options...
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