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F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Vastanavidae is an extinct family of birds related to parrots and passerine birds. They are known from fossils from Eocene sites in India, Europe, and North America. The vastanavids resemble parrots and the extinct parrot relative Quercypsitta zygodactyl foot, in which two toes could face opposite the other two.
Description
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The Vastanavidae have a distinctive, parrot-like appearance. Notable anatomic features include a coracoid with a deep pit for the ball-and-socket joint of the shoulder, comparable to that of Quercypsitta . The humerus is built in a manner resembling birds of prey like hawks and falcons . The tarsometatarsus , the leg bone immediately above the foot, is short and stocky. Vastanavids had partially zygodactyl feet, as shown by skeletal features of the tarsometatarsus.[1] Avolatavis and Eurofluvioviridavis may have been adapted for grasping.[2]
Distribution
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Vastanavid birds have been found from three continents. Sites bearing vastanavid material include the Cambay Shale Formation in Gujarat province, India, where numerous bones of two species of Vastanavis lignite mine.[3] Avolatavis Green River Formation in the United States[4] London Clay of the United Kingdom.[5] Geisel Valley of Germany has produced the vastanavid Eurofluvioviridavis [2]
References
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^ a b Mayr, Gerald (2022). Paleogene fossil birds . Fascinating life sciences (2nd ed.). Cham: Springer. ISBN 978-3-030-87644-9
^ Mayr, G.; Rana, R. S.; Rose, K. D.; Sahni, A.; Kumar, K.; Smith, T. (1 December 2013). "New specimens of the early Eocene bird Vastanavis and the interrelationships of stem group Psittaciformes" . Paleontological Journal . 47 11 ): 1308–1314. Bibcode :2013PalJ...47.1308M . doi :10.1134/S0031030113110105 . ISSN 1555-6174 . S2CID 89380736 .
^ Ksepka, Daniel T.; Clarke, Julia A. (1 March 2012). "A new stem parrot from the Green River Formation and the complex evolution of the grasping foot in Pan-Psittaciformes" . Journal of Vertebrate Paleontology . 32 2 ): 395–406. Bibcode :2012JVPal..32..395K . doi :10.1080/02724634.2012.641704 . ISSN 0272-4634 . S2CID 85308803 .
^ Mayr, Gerald; Kitchener, Andrew C. (28 February 2023). "The Vastanavidae and Messelasturidae (Aves) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK)" . Neues Jahrbuch für Geologie und Paläontologie – Abhandlungen . 307 (2 ): 113–139. doi :10.1127/njgpa/2023/1119 . S2CID 257598310 .
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Vastanavidae&oldid=1186277295 " C a t e g o r i e s : ● E o c e n e b i r d s ● P r e h i s t o r i c b i r d s o f E u r o p e ● P r e h i s t o r i c b i r d s o f N o r t h A m e r i c a ● P r e h i s t o r i c b i r d f a m i l i e s ● N e o g n a t h a e H i d d e n c a t e g o r i e s : ● U s e d m y d a t e s f r o m N o v e m b e r 2 0 2 3 ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a ● A r t i c l e s w i t h ' s p e c i e s ' m i c r o f o r m a t s ● T a x o n b a r s w i t h o u t p r i m a r y W i k i d a t a t a x o n I D s
● T h i s p a g e w a s l a s t e d i t e d o n 2 2 N o v e m b e r 2 0 2 3 , a t 0 2 : 0 9 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
