WALTER G. JOYCE

Connecticut's Pleistocene Horse Reassigned to the 19th Century (2008)

Cynthia Faux, Walter G. Joyce

Radiocarbon dating of the specimen YPM 40001 at the Yale Peabody Museum of Natural History, previously referred to the Pleistocene horse Equus cf. niobrarensis, determined that the specimenis less...

Phylogenetic Relationships of Mesozoic Turtles (2007)

Walter G. Joyce

Presented herein is the first morphological analysis of turtle relationships to examine the monophyly of many turtle groups by using only single species as terminals and by integrating a large number...

A NEW TURTLE FROM THE ARUNDEL CLAY FACIES (POTOMAC FORMATION, EARLY CRETACEOUS) OF MARYLAND, U.S.A. (2006)

THOMAS R. LIPKA, FRANÇOIS THERRIEN, DAVID B. WEISHAMPEL, HEATHER A. JAMNICZKY, WALTER G. JOYCE, MATTHEW W. COLBERT, ...

A new paracryptodiran turtle, Arundelemys dardeni, gen. et sp. nov., is described on the basis of an isolated, nearly complete skull from the Early Cretaceous Arundel Clay facies of Maryland, USA....

Zangerlia ukhaachelys, New Species, a Nanhsiungchelyid Turtle from the Late Cretaceous of Ukhaa Tolgod, Mongolia (2005)

WALTER G. JOYCE, MARK A. NORELL

The Late Cretaceous continental deposits of Ukhaa Tolgod, Mongolia, have yielded remains of a new nanhsiungchelyid turtle, Zangerlia ukhaachelys, n.sp. This taxon is based on a single individual that...

DEVELOPING A PROTOCOL FOR THE CONVERSION OF RANK-BASED TAXON NAMES TO PHYLOGENETICALLY DEFINED CLADE NAMES, AS EXEMPLIFIED BY TURTLES (2004)

WALTER G. JOYCE, JAMES F. PARHAM, JACQUES ARMAND GAUTHIER

We present a rank-free phylogenetic nomenclature for 25 well-established ancient clades of living turtles. This is the first attempt to document fully the nomenclatural history of a clade with the...

Carettochelyine Turtle from the Neogene of Europe (2004)

Walter G. Joyce, Nicole Klein, Thomas Mörs

We identify a fragmentary turtle specimen from the middle Miocene (MN 5) of Hambach, Germany, as the bridge peripheral of a carettochelyine turtle. This important find extends the fossil record of...

Palaeoecology of triassic stem turtles sheds new light on turtle origins.

Joyce, Walter G., Gauthier, Jacques A.

Competing hypotheses of early turtle evolution contrast sharply in implying very different ecological settings-aquatic versus terrestrial-for the origin of turtles. We investigate the palaeoecology...