Navigation Links
Rare 95 million-year-old flying reptile Aetodactylus halli is new pterosaur genus, species
Date:4/27/2010

lus, changes in tooth size along the jaw follow a similar pattern to those of other ornithocheirids. However, Aetodactylus differs from all other ornithocheirids in that its jaws were thin and delicate, with a maximum thickness not much greater than 1 centimeter, Myers says. But the specimen does compare favorably with Boreopterus, a related pterosaur from the Early Cretaceous of China, in terms of the number of teeth present in the lower jaw, he says.

Myers has estimated the wingspan around roughly 3 meters, or about 9 feet, indicating Aetodactylus would have been a "medium-sized" pterosaur, he says. While it's not known how Aetodactylus died, at the time of death the reptile was flying over the sea and fell into the water, perhaps while fishing, Jacobs says.

Find hints at new diversity of pterosaurs

North American pterosaurs that date from the Cretaceous are all toothless, except for Aetodactylus and Coloborhynchus, Myers says. The thinness of the jaws, the upward angle of the back half of the mandible and the lack of a pronounced expansion of the jaw tips indicate that Aetodactylus is different from other ornithocheirids and represents a new genus and species of pterosaur.

"Discovery of another ornithocheirid species in Texas hints at a diversity of pterosaurs in the Cretaceous of North America that wasn't previously realized," Myers says. "Aetodactylus also represents one of the final occurrences of ornithocheirids prior to the Late Cretaceous transition to pterosaur faunas that were dominated by the edentulous, or toothless, species."

Texas now claims the only two of their kind

Much of Texas was once submerged under the Western Interior Seaway. The massive sea split North America from the Gulf of Mexico to the Arctic Ocean.

On shore, the terrain was flat and flowering plants were already dominating flora communities in this part of North America, according to paleobotanist Bonnie Jacobs, associ
'/>"/>

Contact: Margaret Allen
mallen@mail.smu.edu
214-768-7664
Southern Methodist University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. New 150 million-year-old crab species discovered
2. 390-million-year-old scorpion fossil -- biggest bug known
3. Scientists melt million-year-old ice in search of ancient microbes
4. 480-million-year-old fossil sheds light on 150-year-old paleontological mystery
5. 65-million-year-old asteroid impact triggered a global hail of carbon beads
6. Scientists find 245 million-year-old burrows of land vertebrates in Antarctica
7. Origin of claws seen in 390-million-year-old fossil
8. Fossil fragments reveal 500-million-year-old monster predator
9. CU-Boulder study shows 53 million-year-old high Arctic mammals wintered in darkness
10. Study pits man v. machine in piecing together 425-million-year-old jigsaw
11. Story of 4.5 million-year-old whale unveiled in Huelva
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rare 95 million-year-old flying reptile Aetodactylus halli is new pterosaur genus, species
(Date:10/31/2014)... project has developed a new test that can distinguish ... strain of avian influenza virus or "bird flu" with ... a significant step in the fight against this often ... the poultry populations of South East Asia, particularly Indonesia ... its possible transmission to humans and the threat of ...
(Date:10/30/2014)... life, cells immediately begin accepting assignments to become a ... humans, are special. The cells of mammalian embryos get ... the protective placenta or to commit to forming the ... research from Michigan State University has revealed key discoveries. ... PLOS Genetics , provide insights into where ...
(Date:10/30/2014)... York | Heidelberg, 30 October 2014 Biological membranes ... better understanding of adsorption of solution ions onto ... cells. Now, a new study provides a quantitative ... surrounding solution ions. Joanna Kotyńska and Zbigniew Figaszewski ... authors of a study describing these findings, just ...
Breaking Biology News(10 mins):New step towards eradication of H5N1 bird flu 2Identifying the source of stem cells 2Ion adsorption matter in biology 2
... a mathematical model of the mechanism birds use to ... feather structures involve the coordination of at least two ... "Understanding these mechanisms of feather growth gives a whole ... Richard Prum, senior author on the study. Prum is ...
... Conservation Union reported an unprecedented decline in biodiversity, with ... most species is loss of habitat. And as habitat ... accurately predict the population dynamics and extinction risk of ... new study, John Drake tests models traditionally used to ...
... cause of hospital-acquired infections can persist for days ... healthcare settings, including bed linens, computer keyboard covers ... at the 105th General Meeting of the American ... is a major cause of hospital-acquired infections in ...
Cached Biology News:Simple explanation for complex pattern of feather development 2Traditional models underestimate extinction rates 2
(Date:10/31/2014)... , Oct. 31, 2014  Tavistock Development ... by Tavistock Group, celebrated the groundbreaking of the ... City. The 92,000-square-foot, three-story facility ... Central Florida designed specifically for life ... the heart of the 650-acre Lake Nona Medical ...
(Date:10/30/2014)... 30, 2014  Ardelyx, Inc. (NASDAQ: ... cardio-renal, gastrointestinal and metabolic diseases, today announced that ... on Thursday, November 6, 2014. Following the announcement, ... conference call and webcast at 4:30pm ET to ... business update. The live webcast can ...
(Date:10/30/2014)... SoundConnect , an industry leading ... end users the key to turning this already ... adding voice enablement and hybrid audio conferencing. , ... communication tool that includes presence, instant messaging and ... becomes a comprehensive unified communications solution. Adding the ...
(Date:10/30/2014)... 30, 2014 Whitehouse Laboratories has formally ... Stability Testing and Package Test Capacity. Responding to growing ... a dramatic increase in environmental chamber storage space that ... and aging samples to be securely held on site ... capital expenditure has already taken place with the recent ...
Breaking Biology Technology:GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 2GuideWell Innovation Center Groundbreaking Hosted by Tavistock Development Company at Lake Nona Medical City 3Ardelyx to Report Third Quarter 2014 Financial Results on November 6, 2014 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 2SoundConnect Launches Voice Enablement and Hybrid Audio Conferencing for Office 365 3Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3
... Reproductive Health Drugs Advisory Committee met today to discuss the new drug ... Desire Disorder (HSDD) in pre-menopausal women.  The advisory committee was convened by ... FDA will consider the committee,s advice as part of its final assessment ... , ...
... , LONDON , ... in,The Lancet reports that using an artificial pancreas system ... children and,adolescents with type 1 diabetes.(1) Moreover, the first ... and glucagon has shown,that this system can prevent development ...
... gush out of the desert floor at a place called Ash ... species found nowhere else in the world. A new Brigham ... is completing a 15,000-year journey, flowing slowly underground from what is ... bombs there for four decades, and a crack in the Earth,s ...
Cached Biology Technology:Artificial Pancreas can Prevent the Development of Hypoglycemia 2Artificial Pancreas can Prevent the Development of Hypoglycemia 3