Showing posts with label paleontologists. Show all posts
Showing posts with label paleontologists. Show all posts

Friday, August 14, 2015

"Scarface" Fossils Reveal New Species of Venomous Mammal - http://clapway.com/2015/08/14/scarface-fossils-reveal-new-species-of-venomous-mammal/

It isn’t every day that a new species of venomous pre-mammal is found, but scientists at The Field Museum have come across an ancient animal from Zambia that they have named Ichibengops, which literally translates to Scarface.


”Scarface” is a New Species of Pre-Mammal Ancient Relative


According to a press release from the The Field Museum in Chicago, the public can now say hello to our little friend: Scarface, a new species of a prehistoric mammal relative.


The researchers discovered the new animal species by a unique groove on the upper jaw. In a nod to the animal’s origins in Zambia, they named the animal Ichibengops, which is a combination of the Bemba word ichibenga (which means scar) and the Greek suffix ops (which, if you guessed correctly, means face).


While the researchers and media have dubbed the fossil by its informal name of Scarface, the connotations to the Al Pacino movie from the 80s doesn’t just end with the moniker. Both the movie and the prehistoric animal have a history of violence and drug use, albeit the latter for the animal was seen mostly in its venomous bite.


New Species Of Venomous Mammals Survived Largest Mass Extinction


The researchers believe Scarface may have had a deadly bite. Due to grooves above its teeth, the scientists concluded it could have been one of the few pre-mammal species that could transmit venom when they take a nibble of an animal.


Venomousness is so rare in ancient mammals and even modern mammals that only a few now still produce venom. One of these is the odd-looking platypus, but also a few species of shrews carry a toxic set of chompers.


Though a venomous bite may sound scary, the now-extinct animal is believed to be the size of a modern-day dachshund, AKA weiner dogs. So, though the name implies a hardcore gangster and the bite could very possibly kill its prey, the creature needed all the weapons at its disposal thanks to its relatively tiny size.


Scientists from the University of Washington and the Burke Museum, as well as the University of Utah assisted the Field Museum scientists in publishing their findings and the species description in the Journal of Vertebrate Paleontology.


Paleontologists Say New Species “Scarface” Can Teach Us About Evolution and Extinction


The Ichibengops was a part of the suborder Therocephalia, a large group of mammal-like relatives that lived about 255 million years ago. They made a good evolutionary run, being one of the lucky few species that survived the Permian-Triassic extinction, otherwise known as the biggest mass extinction event in the history of the world. However, competition with reptiles and climate change may have done them in somewhere between 247 to 237 million years ago.


The discovery of the new animal is exciting for the field of paleomammalogy as it can provide a better picture in the evolutionary puzzle of our pre-mammal ancestors.


Kenneth Angielczyk, the Field Museum’s associate curator of paleomammalogy, believes that researching these ancient relatives of mammals will lead us to apply the lessons to the latest mass extinction event.



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"Scarface" Fossils Reveal New Species of Venomous Mammal

Saturday, August 8, 2015

Six New Dinosaurs Revealed After Study Analyzing Teeth - http://clapway.com/2015/08/08/six-new-dinosaurs-from-teeth-101/

Six new species of dinosaurs have been found after researchers from the University of Alberta analyzed theropod teeth from eight regions in Spain.


A Study On Teeth Revealed Six New Dinosaurs of the Theropod Species


University of Alberta researchers have quadrupled the number of known dinosaur species in Spain from only two species to eight new dinosaurs species. The research was conducted using 142 isolated theropod teeth from a part of the South Pyrenean Basin dated around the Late Cretaceous epoch.


The teeth analyzed in the study were from eight different localities in Spain, including Treviño County, Huesca, Lerida, and Laño. Though two species of theropod were already known, the researchers happened across six additional species during their research on dinosaur evolution at the final stages of the Cretaceous period.


The new species of theropod would have been present during the timeframe that spanned the Campanian age, which lasted about 83.6 million to 72.1 million years ago, and the Maastrichtian age, from 72.1 million to 66 million years ago.


The study was published in the journal Acta Palaeontologica Polonica.


More Teeth Means More Theropods For Researchers in Spain


Though the research was not initially to investigate the number of theropod species in the area, the sample of 142 isolated teeth revealed more species than researchers could have imagined.


Through analysis, the study concluded that a total of six toothed theropod species had lived in the area, five of which had been small, while the last one was large in comparison.


Angelica Torices, lead author of the study from the University of Alberta, believes the importance of the discovery may help lead paleontologists to better understand how the dinosaurs lived and what caused their extinction.


As no complete theropod skeletons have been revealed in Spain and the surrounding countries, paleontologists must rely on the smallest element available to know the timeline of dinosaur evolution: theropod teeth.


Though teeth may seem to be rather small, Torices and the other researchers say the teeth are the key to reconstructing the dinosaurs lives, especially in Europe during the Late Cretaceous ages.


Diversity of Carnivorous Dinosaurs in Cretaceous Europe


Theropods are a species of carnivorous dinosaurs who frequently lost and subsequently replaced their teeth. A massive number of teeth would be produced by one dinosaur during its lifetime.


These dental fixtures would fall out when the time was ready, only to be found millions of years later by scientists eager to learn more about the lives of theropods.


Though nothing else of the dinosaurs remained, the teeth showed their value in this study as their armed researchers with the knowledge that even the tiniest bit of extra information can help fill in the gaps in the evolutionary timeline of theropods.


The study researchers believe their findings have highlighted the diversity of carnivorous dinosaurs in Europe, but will also highlight how these dinosaurs and other large animals responded to climate change.


The fossil record may be incomplete for now, but at least the six new dinosaur species have been found thanks to a few forgotten teeth.



 


MAYHAPS YOU SHOULD AWAKE BEFORE TEETH ARE ALL THAT’S LEFT OF YOU




Six New Dinosaurs Revealed After Study Analyzing Teeth