JULIA A. CLARKE

Mosaicism, Modules, and the Evolution of Birds: Results from a Bayesian Approach to the Study of Morphological Evolution Using Discrete Character Data (2008)

Clarke, Julia A., Middleton, Kevin M.

The study of morphological evolution after the inferred origin of active flight homologous with that in Aves has historically been characterized by an emphasis on anatomically disjunct, mosaic...

Species Names in the PhyloCode: The Approach Adopted by the International Society for Phylogenetic Nomenclature (2008)

Dayrat, Benoît, Cantino, Philip D., Clarke, Julia A., De Queiroz, Kevin

FIRST ATLANTIC RECORD OF THE PUFFIN CERORHINCA (AVES, ALCIDAE) FROM THE PLIOCENE OF NORTH CAROLINA (2007)

N. ADAM SMITH, STORRS L OLSON, JULIA A CLARKE

New Avian Remains from the Eocene of Mongolia and the Phylogenetic Position of the Eogruidae (Aves, Gruoidea) (2005)

JULIA A. CLARKE, MARK A. NORELL, DEMBERELYIN DASHZEVEG

A well-preserved nearly complete avian tarsometatarsus was collected by the 2002 expedition of the Mongolian Academy of Sciences from upper Eocene deposits exposed at the locality of Alag Tsav in the...

New avian remains from the Eocene of Mongolia and the phylogenetic position of the Eogruidae (Aves, Gruoidea). American Museum novitates ; no. 3494 (2005)

Clarke, Julia A., Norell, Mark, Dashzeveg, Demberelyin

17 p. : ill., map ; 26 cm.

MORPHOLOGY, PHYLOGENETIC TAXONOMY, AND SYSTEMATICS OF ICHTHYORNIS AND APATORNIS (AVIALAE: ORNITHURAE) (2004)

JULIA A. CLARKE

Charles Darwin commented that Ichthyornis, as one of the “toothed birds” from the Late Cretaceous of Kansas, offered some of “the best support to the theory of evolution” (in litt., C. Darwin...

New Avialan Remains and a Review of the Known Avifauna from the Late Cretaceous Nemegt Formation of Mongolia (2004)

JULIA A. CLARKE, MARK A. NORELL

Small vertebrates have remained relatively poorly known from the Nemegt Formation, although it has produced abundant and well-preserved large dinosaur remains. Here we report three new avialan...

Morphology, phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae, Ornithurae). Bulletin of the AMNH ; no. 286 (2004)

Clarke, Julia A.

179 p. : ill. ; 26 cm.

New avialan remains and a review of the known avifauna from the late Cretaceous Nemegt Formation of Mongolia. American Museum novitates ; no. 3447 (2004)

Clarke, Julia A., Norell, Mark.

12 p. : ill., map ; 26 cm.

Description of the Earliest Fossil Penguin from South America and First Paleogene Vertebrate Locality of Tierra Del Fuego, Argentina (2003)

JULIA A. CLARKE, EDUARDO B. OLIVERO, PABLO PUERTA

We report the discovery of the first vertebrate from the Paleogene of Tierra del Fuego (Isla Grande), Argentina, in southernmost South America. The specimen consists of parts of an associated pelvic...

Description of the earliest fossil penguin from South America and first Paleogene vertebrate locality of Tierra Del Fuego, Argentina. American Museum novitates ; no. 3423 (2003)

Clarke, Julia A., Olivero, Eduardo B., Puerta, Pablo.

18 p. : ill., maps ; 26 cm.

The Morphology and Phylogenetic Position of Apsaravis ukhaana from the Late Cretaceous of Mongolia (2002)

JULIA A. CLARKE, MARK A. NORELL

The avialan taxon Apsaravis ukhaana from the Late Cretaceous of southern Mongolia is completely described and its phylogenetic position is evaluated. Apsaravis ukhaana is from continental sandstones...

The morphology and phylogenetic position of Apsaravis ukhaana from the late Cretaceous of Mongolia. American Museum novitates ; no. 3387 (2002)

Clarke, Julia A., Norell, Mark.

46 p. : ill., map ; 26 cm.

A New Carinate Bird from the Late Cretaceous of Patagonia (Argentina) (2001)

JULIA A. CLARKE, LUIS M. CHIAPPE

A new bird from the Late Cretaceous of Patagonia (Argentina), known from associated wing elements, is described and its phylogenetic position evaluated. Fossil taxa as well as representatives of...

A new carinate bird from the late Cretaceous of Patagonia (Argentina). American Museum novitates ; no. 3323 (2001)

Clarke, Julia A., Chiappe, Luis M.

23 p. : ill., 1 map ; 26 cm.

Stratigraphy and magnetostratigraphic/faunal constraints for the age of sauropod embryo-bearing rocks in the Neuquén Group (Late Cretaceous, Neuquén Province, Argentina). American Museum novitates ; no. 3290 (2000)

Dingus, Lowell., Clarke, Julia A., Scott, Gary R., Swisher, Carl Celso., Chiappe, Luis M., Coria, Rodolfo A.

11 p. : ill. (some col.), map ; 26 cm.

Paleogene equatorial penguins challenge the proposed relationship between biogeography, diversity, and Cenozoic climate change

Clarke, Julia A., Ksepka, Daniel T., Stucchi, Marcelo, Urbina, Mario, Giannini, Norberto, Bertelli, Sara, ...

New penguin fossils from the Eocene of Peru force a reevaluation of previous hypotheses regarding the causal role of climate change in penguin evolution. Repeatedly it has been proposed that penguins...

Insight into the evolution of avian flight from a new clade of Early Cretaceous ornithurines from China and the morphology of Yixianornis grabaui

Clarke, Julia A, Zhou, Zhonghe, Zhang, Fucheng

In studies of the evolution of avian flight there has been a singular preoccupation with unravelling its origin. By contrast, the complex changes in morphology that occurred between the earliest form...