Mystiornis is an extinct genus of bird which existed in what is now western Siberia, Russia during the early Cretaceous period (Barremian/Aptian age). It is known from an isolated metatarsus found in the Shestakovo-1 locality of southern Western...
The Enantiornithes (literally, "opposite birds", by which name they are popularly known), also known as enantiornithines or enantiornitheans in literature, are a group of extinct avialans ("birds" in the broad sense). They were the most abundant and...
Kiyacursor (meaning "Kiya River runner") is an extinct genus of noasaurid theropod dinosaur from the Early Cretaceous Ilek Formation of Russia. The genus contains a single species, K. longipes, known from a partial skeleton. Kiyacursor represents...
Magnusavis (meaning "big bird") is an extinct genus of large enantiornithean birds from the Late Cretaceous (Maastrichtian-aged) Hell Creek Formation of Montana, United States. The genus contains a single species, M. ekalakaensis, known from an...
Martinavis is a genus of enantiornithine birds which existed in what is now southern France, North America and Salta Province, Argentina during the late Cretaceous period. It was named by Cyril A. Walker, Eric Buffetaut and Gareth J. Dyke in 2007,...
Enantiornis is a genus of Enantiornithes. The type and only currently accepted species E. leali is from the Late Cretaceous Lecho Formation at El Brete, Argentina. It was described from specimen PVL-4035, a coracoid, proximal scapula and proximal...
Concornis is a genus of enantiornithean birds which lived during the early Cretaceous period, in the late Barremian age about 125 million years ago. Its remains are known from the Calizas de La Huérgina Formation at Las Hoyas, Cuenca province,...
Neuquenornis volans is a species of enantiornithean birds which lived during the late Cretaceous period in today's Patagonia, Argentina. It is the only known species of the genus Neuquenornis. Its fossils were found in the Santonian Bajo de la Carpa...
Avisauridae is a family of extinct enantiornithine dinosaurs from the Cretaceous period, distinguished by several features of their ankle bones. Depending on the definition used, Avisauridae is either a broad and widespread group of advanced...
Gobipipus ("Gobi Desert chick") is a genus of enantiornithine bird. It lived during the middle Campanian stage of the Upper Cretaceous around 80 to 76 million years ago in what is now Mongolia. It is known from an incomplete embryonic individual...