pterosaurnet.blogspot.com
Pterosaurs to Birds: June 2015
http://pterosaurnet.blogspot.com/2015_06_01_archive.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Friday, June 26, 2015. Primitive birds - Quick summary. There were pennaceous-feathered, long-bony-tailed primitive birds. The most basal were flying. Eg scansoriopterygids, tetrapterygids. Some later ones became secondarily flightless. Eg oviraptors, eudromaeosaurids. Posted by Dr. Pterosaur. Links to this post. Attached to the m...
pterosaurnet.blogspot.com
Pterosaurs to Birds: Dinosaurs are not similar to primitive birds
http://pterosaurnet.blogspot.com/2015/06/dinosaurs-are-not-similar-to-primitive.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Friday, June 5, 2015. Dinosaurs are not similar to primitive birds. The following study shows that there were 51 synapomorphies. Are not similar to. Which is a point that I have being making for a very long time. It is good to see a cladistic analysis confirm this point. 2011 study (Xu et al):. China and the origin of Avialae.
pterosaurnet.blogspot.com
Pterosaurs to Birds: Zhenyuanlong
http://pterosaurnet.blogspot.com/2015/07/zhenyuanlong.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Monday, July 20, 2015. Zhenyuanlong is a secondarily flightless. Http:/ www.nature.com/srep/2015/150716/srep11775/full/srep11775.html. A large, short-armed, winged dromaeosaurid (Dinosauria: Theropoda) from the Early Cretaceous of China and its implications for feather evolution. Zhenyuanlong evolved from more volant ancestors.
pterosaurnet.blogspot.com
Pterosaurs to Birds: Pubis evolution
http://pterosaurnet.blogspot.com/2014/12/pubis-evolution.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Wednesday, December 17, 2014. Http:/ pterosaurheresies.files.wordpress.com/2011/09/prepubes588.jpg. Pterosaur pubis (in green) and prepubis (in yellow). The drawing of MPUM 6009 is the most relevant. The pterosaur pubis (green) is homologous with the basal paraves. The pubis/prepubis parts of MPUM 6009 above, correspond to the 3 p...
pterosaurnet.blogspot.com
Pterosaurs to Birds: Primitive Birds
http://pterosaurnet.blogspot.com/2015/08/primitive-birds.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Sunday, August 9, 2015. Here is a partial list of primitive (feathered, long-bony-tailed) flying and secondarily flightless birds. Scansoriopterygids (Temporal range: Late Jurassic, 165–156 Ma). Anchiornis (Temporal range: Late Jurassic, 161–160.5 Ma). Aurornis (Temporal range: Late Jurassic, 160 Ma). Posted by Dr. Pterosaur.
pterosaurnet.blogspot.com
Pterosaurs to Birds: Dinosaur to bird - implausible rates of change
http://pterosaurnet.blogspot.com/2015/01/dinosaur-to-bird-improbable-rates-of.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Tuesday, January 6, 2015. Dinosaur to bird - implausible rates of change. Http:/ www.bbc.co.uk/nature/28563682. Huge meat-eating, land-living dinosaurs evolved into birds by constantly shrinking for over 50 million years, scientists have revealed. Theropods shrunk 12 times from 163kg to 0.8kg before becoming modern birds. The rese...
pterosaurnet.blogspot.com
Pterosaurs to Birds: Primitive birds flying
http://pterosaurnet.blogspot.com/2015/07/primitive-birds-flying.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Sunday, July 5, 2015. Primitive birds (basalmost paraves) flapped their wings and flew using the same set of muscles as their pterosaur ancestors. Http:/ press.princeton.edu/witton/sa.pterosaurs.pdf. At one stage, it was thought that the flight muscles of. Pterosaurs were very [modern] birdlike, with the arm lifted by. Archaeopter...
pterosaurnet.blogspot.com
Pterosaurs to Birds: Oviraptor Propatagium
http://pterosaurnet.blogspot.com/2015/06/oviraptor-propatagium.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Monday, June 22, 2015. More evidence that oviraptors were secondarily. Flightless and not transitional between dinosaurs and Paraves. Https:/ www.google.ca/url? Testing the neoflightless hypothesis: propatagium reveals flying ancestry of oviraptorosaurs (2015). Alan Feduccia1• Stephen A. Czerkas2. Or was it secondarily flightless.
pterosaurnet.blogspot.com
Pterosaurs to Birds: July 2015
http://pterosaurnet.blogspot.com/2015_07_01_archive.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Monday, July 20, 2015. There is a set of 4-winged, flying, primitive birds (eg. Anchiornis, Aurornis, Xiaotingia etc.) that at times have been classified as avialans and sometimes as dromaeosaurids. They actually belong to the basalmost. They are the Tetrapterygidae. Https:/ en.wikipedia.org/wiki/Paraves. Adapted to an arboreal.
pterosaurnet.blogspot.com
Pterosaurs to Birds: Feet
http://pterosaurnet.blogspot.com/2014/12/feet.html
This site presents the idea that birds developed from pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs. Sunday, December 14, 2014. Pterosaur feet are like basal paraves feet. Dinosaur feet are not. Like basal paraves feet. Distally the [Epidendrosaurus] trochlea of metatarsal I aligns with those of II and III as in advanced perching birds, but not in other known dinosaurs. Theropods. Although it does not preserve a reversed. Subscri...