Faysal was featured in New York University Abu Dhabi speaking on his longterm field project in the Baynunah Formation.
The year is almost over, and there have been quite a few changes. First and foremost, Gabi successfully defended her dissertation. Congratulations, Dr. Sobral!
Also, Sebastian won the 2nd place in the student competition at the annual meeting of the Herpetological Association of Africa. Congrats also here!
Finally, Christy will be leaving the lab to start her new position in Melbourne, Australia, in January. After Johannes, Christy was the longest member of the lab, and we wish her all the best for her career down under!
Many things happened in the last 6 months, and we have to apologize for being slow with the updates.
In a nutshell:
– And Martin Kirchner defended his M.Sc. thesis. Congratulations!
Our team has just announced the discovery of a cheek tooth of a fossil monkey from the Al Gharbia region of Abu Dhabi Emirate, United Arab Emirates. This research is published today in the prestigious journal Proceedings of the National Academy of Sciences.
From anatomical comparisons, we determined that the UAE fossil monkey was related to the ancestors of living guenon monkeys. Guenon monkeys are today known only from Africa south of the Sahara, and are especially diverse in the rain forests of Central and West Africa. Interestingly, guenons were only known from a scant fossil record as old as 4 million years ago, and only from Africa. Until now. At around 7 million years old, the Al Gharbia fossil monkey is the oldest guenon monkey known in the world, and the first record that guenons ever ranged outside of Africa.
The discovery of a fossil guenon monkey in the U.A.E. offers another reminder of how different Arabian climate and environments must have been 7 million years ago. The presence of rivers and woodland areas fits with our team’s previous discoveries of fossil hippopotamus, crocodiles, swamp rats, fish, turtles, and other water-loving animals and even fossil tree trunks in the Al Gharbia region.
The Al Gharbia fossil guenon is only the second specimen of a fossil monkey known from the entire Arabian Peninsula (the first is also from Al Gharbia but was less informative).
The fossil tooth is very small (just over half a centimeter in length) and was found by our team on the island of Shuwaihat. We were in the process of sieving through sands looking for tiny fossils such as rodent teeth and snake bones. We estimate the body mass of the Al Gharbia fossil monkey to have been between 4 and 6 Kg, which is similar to many guenons living today.
Though it is only known from a single tooth, the Al Gharbia fossil guenon provides compelling evidence of the existence of these animals in Arabia in the past, far beyond their modern-day range. It also highlights that monkeys living seven million years ago had no problems dispersing between Africa and the Arabian Peninsula. This matches with the many fossil antelopes, hippos, crocodiles, rodents, giraffes, elephants, and carnivores that we have found in Al Gharbia to date that also indicate strong and continuous faunal connections with Africa.
Images of the fossil tooth in multiple angles. Scale bar = 1mm. (photo: Erik Lazo-Wasem)
Read the full press release here.
Abu Dhabi Authority for Tourism and Culture Arabic language press release here.
Reference: Christopher C. Gilbert, Faysal Bibi, Andrew Hill, and Mark J. Beech. 2014. Early guenon from the late Miocene Baynunah Formation, Abu Dhabi, with implications for cercopithecoid biogeography and evolution. Proceedings of the National Academy of Sciences, doi: 10.1073/pnas.1323888111
Johannes’ talk that he gave at the Museo Nacional de Ciencias Naturales in Madrid in November 2013 is now online. You can watch it here.
Faysal Bibi joined the lab for the coming years. Welcome to Berlin!
A follow-up to Gabi’s award notification: here’s a pic with her official certificate, handed over at the 2013 SVP meeting in Los Angeles. Congratulations again!
Our team has published two papers reviewing all the fossil species that we and previous teams have found from the Baynunah Formation of the Al Gharbiya region of Abu Dhabi Emirate.
The first is titled Before archaeology: life and environments in the Miocene of Abu Dhabi (pdf), from the book Fifty Years of Emirates Archaeology (editors D. Potts & P. Hellyer), published in 2012.
The second, also a book chapter, is titled Late Miocene Fossils from the Baynunah Formation, United Arab Emirates: Summary of a Decade of New Work (pdf), from a recently published book called Fossil Mammals of Asia (Columbia Univ. Press, editors X. Wang, M. Fortelius, L. Flynn).
In addition to providing information on the wide range of animals that existed in Abu Dhabi in the Late Miocene, these papers also review the history of discovery of fossils in the Al Gharbia region. The reviews (especially the second one) also compare the similarity of these late Miocene fossil animals to those from Africa and Asia, showing that the region at the time housed a mix of African and southern Asian animals that is not recorded anywhere else.
To anyone previously unfamiliar with the subject, these reviews show quite clearly the diversity of prehistoric animals that used to live in this part of the Arabian Peninsula. This large diversity of everything from shells to crocodiles, rodents, birds, monkeys, and elephants was supported by a river system that once flowed through what is now the U.A.E., and that has long since gone dry and disappeared.