New postcrania of Deccanolestes from the Late Cretaceous of India and their bearing on the evolutionary and biogeographic history of euarchontan mammals.

Die Naturwissenschaften
Doug M BoyerJohn J Flynn

Abstract

Extant species of the supraordinal mammal clade Euarchonta belong to the orders Primates, Scandentia, or Dermoptera. The fossil record of euarchontans suggests that they underwent their initial radiation during the Paleocene (65-55 million years ago) in North America, Eurasia, and Africa. The time and place of origin is poorly resolved due to lack of definitive fossils of euarchontan stem taxa. We describe a fragmentary humerus and two fragmentary ulnae from the latest Cretaceous of India that bear significantly on this issue. The fossils are tentatively referred to Deccanolestes cf. hislopi due to their small size and the fact that Deccanolestes is the only eutherian dental taxon to have been recovered from the same locality. The new fossils are used to evaluate the existing behavioral hypothesis that Deccanolestes was arboreal, and the competing phylogenetic hypotheses that Deccanolestes is a stem eutherian versus a stem euarchontan. The humerus resembles those of euarchontans in possessing a laterally keeled ulnar trochlea, a distinct zona conoidea, and a spherical capitulum. These features also suggest an arboreal lifestyle. The ulnar morphology is consistent with that of the humerus in reflecting an arboreal/scansorial ani...Continue Reading

References

May 24, 1974·Science·W A Clemens
Nov 5, 1965·Science·L Van Valen, R E Sloan
Jan 1, 1980·Folia primatologica; international journal of primatology·F S Szalay, M Dagosto
Feb 13, 2002·Proceedings. Biological Sciences·Per G P EricsonJanette A Norman
Jul 18, 2002·Systematic Biology·J R MaceyT J Papenfuss
Nov 27, 2002·Evolution; International Journal of Organic Evolution·Elena ContiDavid A Baum
Jan 29, 2003·Proceedings of the National Academy of Sciences of the United States of America·Mark S SpringerStephen J O'Brien
Jul 19, 2006·Proceedings of the National Academy of Sciences of the United States of America·Thierry SmithPhilip D Gingerich
Jan 19, 2007·Proceedings of the National Academy of Sciences of the United States of America·Jonathan I BlochEric J Sargis
Apr 9, 1965·Science·R E Sloan, L Van Valen
Nov 3, 2007·Science·Jan E JaneckaWilliam J Murphy
Nov 10, 2007·Science·G V R PrasadA Khosla
May 28, 2008·Die Naturwissenschaften·Gerhard Storch
Mar 24, 2009·Journal of Human Evolution·Kenneth D RoseThierry Smith
Nov 1, 2003·American Journal of Botany·Robert J Morley, Christopher W Dick

❮ Previous
Next ❯

Citations

Sep 21, 2011·Proceedings of the National Academy of Sciences of the United States of America·Anjali GoswamiJohn J Flynn
Aug 3, 2011·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Mark S SpringerWilliam J Murphy
Jan 22, 2015·Proceedings of the National Academy of Sciences of the United States of America·Stephen G B ChesterWilliam A Clemens
Jun 13, 2018·Royal Society Open Science·Mariela C CastroMax C Langer
Apr 4, 2017·Journal of Human Evolution·Magdalena N Muchlinski, E Christopher Kirk
Mar 4, 2019·Journal of Human Evolution·Stephen G B ChesterEric J Sargis

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Proceedings of the National Academy of Sciences of the United States of America
Anjali GoswamiJohn J Flynn
Proceedings of the National Academy of Sciences of the United States of America
Jonathan I BlochEric J Sargis
Proceedings of the National Academy of Sciences of the United States of America
Mark SpringerStephen J O'Brien
© 2021 Meta ULC. All rights reserved