Troodon Posted May 10, 2018 Author Share Posted May 10, 2018 Hell Creek / Lance Tyrannosaur hand bones Adult T-rex Hand claws: Top Left digit I, Right Digit II Adult Nannotyrannus Hand claws: Bottom Left Digit I, Right Digit II Metacarpal I Juvie Nanotyrannus Left Hand Juvie Nanotyrannus on top of adult Juvie Nanotyrannus (middle) compared to Adult T-rex : Top Wyrex, Bottom Sue Sue & Wyrex are all roughly circular in crossection, Nanotyrannus clearly triangular! 6 Link to comment Share on other sites More sharing options...
Meatasaurus93 Posted July 9, 2018 Share Posted July 9, 2018 A wonderful resource and beautiful collection! This topic helped me out with a recent purchase. Thanks for all your contributions to the forum! Link to comment Share on other sites More sharing options...
Troodon Posted July 9, 2018 Author Share Posted July 9, 2018 2 hours ago, Meatasaurus93 said: A wonderful resource and beautiful collection! This topic helped me out with a recent purchase. Thanks for all your contributions to the forum! Thanks that was the intended purpose, glad it was helpful Link to comment Share on other sites More sharing options...
Troodon Posted June 30, 2019 Author Share Posted June 30, 2019 Avian, bird Claws from this fauna are often mistaken for Theropod but a recent publication can help shed some light on one Avisaurus archibaldi. Like I did with Troodon we look at other faunas to compare against since nothing appears to be described from the HC. Here we have an Avisauridae from the Kaiparowits Fm of Utah that appears to be a good representation of the HC/Lance Avisaurus spp. . Scale: 0.5 cm Atterholt, J., Hutchison, J.H., O'Connor, J.K (2018) "The most complete enantiornithine from North America and a phylogenetic analysis of the Avisauridae" PeerJ November 13, 2018 From my collection think its one 5 Link to comment Share on other sites More sharing options...
Troodon Posted June 30, 2019 Author Share Posted June 30, 2019 Small Microraptorians are most likely present in these faunas but nothing is described. Here we have a foot claw from an early cretaceous, Barremian, species Zhongjianosaurus from China. The morphology looks similar to its larger Dromaeosaurid cousins just a lot smaller Scale: 5 mm Xu, Xing; Qin, Zi-Chuan (2017). "A new tiny dromaeosaurid dinosaur from the Lower Cretaceous Jehol Group of western Liaoning and niche differentiation among the Jehol dromaeosaurids" 4 Link to comment Share on other sites More sharing options...
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