Hominoid Primates from a new Miocene locality named Meswa Bridge in Kenya - 1981
The Tinderet Miocene sequence in Kenya - 1981
A middle Miocene (12.2 my old) forest in the East African Rift Valley, Keny - 1987
Jemezius, a new omomyid primate from the early Eocene of northwestern New Mexico - 1987
Stirtonia victoriae, a new species of Miocene Colombian Primate - 1987
Manual proximal phalanx of Laccopithecus robustus from the latest Miocene site of Lufeng - 1988
A new species of Micropithecus from the middle Miocene of Kenya - 1989
New fossil platyrrhines from the Pinturas Formation, southern Argentina - 1990
New platyrrhine tali from La Venta, Colombia - 1990
Fejej: a new paleoanthropological research area in Ethiopia - 1991
New hominid fossils from Fejej, Southern Ethiopia - 1991
Pliocene and Pleistocene archeological sites west of Lake Turkana, Kenya - 1992
New hominoid fossils from the early Miocene site of Songhor, Kenya - 1992
Large fossil platyrrhines from the Rio Acre local fauna, late Miocene, western Amazonia - 1993
Tephra correlations between the Gadab prehistoric site and the Turkana Basin - 1994
A note on the reported occurrence of very early Homo from West Lake Turkana, Kenya - 1994
Variables versus models of early Pleistocene hominid land use - 1994
New cercamoniine adapid from Fayum, Egypt - 1995
New primate from the Palaeogene of Thailand, and the biogeographical origin of anthropoids - 1995
Presence of the Cercopithecid genus Theropithecus in Cueva Victoria (Murcia, Spain) - 1995
A new genus of large primate from the late Oligocene of Lothidok, Turkana District, Kenya - 1995
An early date for the Middle Stone Age of central Zambia - 1996
Age of Australopithecus afarensis from Fejej, Ethiopia - 1996
A revised systematic scheme for the Eurasian Miocene fossil Hominidae - 1997
Fuente Nueva-3 (Orce, Granada, Spain) and the first human occupation of Europe - 1997
Ecological diversity and community ecology in the Fayum sequence (Egypt) - 1997
Body mass in comparative primatology - 1997
New Kohatius (Omomyidae) from the Eocene of Pakistan - 1997
Hominid status of the Orce Cranial fragment reasserted - 1998
Zooarchaeology and taphonomy of Aurora Stratum (Gran Dolina, Sierra de Atapuerca, Spain) - 1999
Ungulates from Atapuerca TD6 - 1999
A new anthropoid from the latest middle Eocene of Pondaung, central Myanmar - 2001
Primate canines from the early Miocene Pinturas Formation, Southern Argentina - 2002
The skull of Orce: parietal bones or frontal bones? - 2002
The upper dentition and face of Pondaungia cotteri from central Myanmar - 2002
New fossil Primate from Chile - 2003
Molar scaling in strepsirrhine primates - 2005
A new pliopithecoid genus from the early Miocene of Uganda - 2006
New platyrrhine monkeys from the Solimoes Formation (late Miocene, Acre State, Brazil) - 2006
The anatomy of Dolichocebus gaimanensis, a stem platyrrhine monkey from Argentina - 2008
The anatomy and systematic position of the early Miocene proconsulid from Meswa Bridge, Kenya - 2009
Systematics of early and middle Miocene Old World monkeys - 2009
Early Eocene primates from Gujarat, India - 2009
First record of a parapithecid primate from the Oligocene of Kenya - 2011
New adapiform primate of Old World affinities from the Devil’s Graveyard Formation of Texas - 2011
New early Miocene primate fossils from northern Patagonia, Argentina - 2012
First record of Plesiadapiformes (Primates, Mammalia) from Spain - 2012
A platyrrhine talus from the early Miocene of Peru (Amazonian Madre de Dios Sub-Andean Zone) - 2012
The westernmost tarsier: A new genus and species from the Miocene of Pakistan - 2013