Zapsalis
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Zapsalis is a genus of dromaeosaurine theropod dinosaurs. It is a tooth taxon, often considered dubious because of the fragmentary nature of the fossils, which include teeth but no other remains.
Photo of Edward Drinker Cope, the describer of Zapsalis.
Paronychodon
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Paronychodon is an extinct theropod dinosaur genus. It is a tooth taxon, often considered dubious because of the fragmentary nature of the fossils, which include "buckets" of teeth from many disparate
Zapsalis
…other theropod dinosaurs like Deinodon, Aublysodon, and Dromaeosaurus. Z. abradens was moved to Dromaeosaurus and synonymized with the other Dromaeosaur Paronychodon. It wasn't until 2002 that Julia Sankey e.a. concluded the teeth represented a separate "?Dromaeosaurus Morphotype A". In 2013 Derek Larson and Philip…
Comparison of troodontid teeth; K is P. lacustris
Patagonykuspuertai
Confuciusornis plumage pattern
Patagopteryx deferrariisi