Works (23)

Updated: July 5th, 2023 15:56

2014 article

Combined phylogenetic analysis of a new North American fossil species confirms widespread Eocene distribution for stem rollers (vol 157, pg 586, 2009)

Zoological Journal of the Linnean Society, Vol. 172, pp. 226–229.

By: J. Clarke, D. Ksepka, N. Smith & M. Norell

Source: NC State University Libraries
Added: August 6, 2018

2012 journal article

A new stem parrot from the Green River formation and the complex evolution of the grasping foot in Pan-Psittaciformes

Journal of Vertebrate Paleontology, 32(2), 395–406.

By: D. Ksepka & J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Exploring the effects of phylogenetic uncertainty and consensus trees on stratigraphic consistency scores: A new program and a standardized method

Cladistics, 27(1), 52–60.

By: C. Boyd, T. Cleland, N. Marrero & J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

New information on the cranial anatomy of Acrocanthosaurus atokensis and its implications for the phylogeny of Allosauroidea (Dinosauria: Theropoda)

PLoS One, 6(3).

By: D. Eddy & J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2011 journal article

Podargiform affinities of the enigmatic Fluvioviridavis platyrhamphus and the early diversification of strisores ("caprimulgiformes" plus apodiformes)

PLoS One, 6(11).

By: S. Nesbitt, D. Ksepka & J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Fossil evidence for evolution of the shape and color of penguin feathers

Science, 330(6006), 954–957.

By: J. Clarke, D. Ksepka, R. Salas-Gismondi, A. Altamirano, M. Shawkey, L. D'Alba, J. Vinther, T. DeVries, P. Baby

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Primobucco mcgrewi (Aves: Coracii) from the Eocene Green River Formation: Mew anatomical data from the earliest constrained record of stem rollers

Journal of Vertebrate Paleontology, 30(1), 215–225.

By: D. Ksepka & J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

AFFINITIES OF PALAEOSPIZA BELLA AND THE PHYLOGENY AND BIOGEOGRAPHY OF MOUSEBIRDS (COLIIFORMES)

AUK, 126(2), 245–259.

By: D. Ksepka n & J. Clarke n

author keywords: Coliidae; Coliiformes; Florissant Formation; fossil; mousebird; Palaeospiza bella; phylogeny
TL;DR: It is shown that P. bella is a member of the Coliiformes (mousebirds) and represents the latest North American occurrence of a clade with an exclusively African extant distribution and Phylogenetic results imply that a minimum of three mousebird dispersals from Europe to North America occurred during the Early Cenozoic. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Combined phylogenetic analysis of a new North American fossil species confirms widespread Eocene distribution for stem rollers (Aves, Coracii)

ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, 157(3), 586–611.

By: J. Clarke n, D. Ksepka n, N. Smith n & M. Norell*

author keywords: avian evolution; biogeography; Cenozoic; combined analysis; Green River Formation; phylogeny
Source: Web Of Science
Added: August 6, 2018

2009 journal article

TAXONOMIC REVISON OF THE BASAL NEORNITHISCHIAN TAXA THESCELOSAURUS AND BUGENASAURA

JOURNAL OF VERTEBRATE PALEONTOLOGY, 29(3), 758–770.

By: C. Boyd n, C. Brown*, R. Scheetz* & J. Clarke*

TL;DR: This analysis is the first to recover a clade containing all basal neornithischian taxa from the Cretaceous of North America, within which P. warreni is recovered as the sister taxon to a Thescelosaurus clade whose monophyly is supported by five cranial autapomorphies. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Insight into diversity, body size and morphological evolution from the largest Early Cretaceous enantiornithine bird

JOURNAL OF ANATOMY, 212(5), 565–577.

By: Z. Zhou*, J. Clarke n & F. Zhang*

author keywords: bird evolution; China; Early Cretaceous; Enantiornithes
TL;DR: The largest Early Cretaceous enantiornithine bird from north‐east China is reported, which provides evidence that basal members of Enantiornithes share more morphologies with ornithurine birds than previously recognized, and allows a re‐evaluation of a previously proposed hypothesis of competitive exclusion among EarlyCretaceous avian clades. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Mosaicism, modules, and the evolution of birds: Results from a Bayesian approach to the study of morphological evolution using discrete character data

SYSTEMATIC BIOLOGY, 57(2), 185–201.

By: J. Clarke n & K. Middleton*

author keywords: Bayesian analyses; birds; flight; fossils; morphological data; mosaic evolution; quantitative methods
MeSH headings : Animals; Bayes Theorem; Biological Evolution; Birds / anatomy & histology; Birds / genetics; Flight, Animal; Models, Biological
TL;DR: Results suggest limited support for some pectoral branch lengths being significantly longer only early at/after the origin of flight, and preference for models with partitions defined a priori by anatomical subregion is consistent with a disjunctive pattern of character change for the data set investigated and may have implications for parameterization of Bayesian analyses of morphological data more generally. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Osteology of Icadyptes salasi, a giant penguin from the Eocene of Peru

JOURNAL OF ANATOMY, 213(2), 131–147.

By: D. Ksepka*, J. Clarke n, T. DeVries* & M. Urbina*

author keywords: alula; body size; fossil; palaeontology; Pisco Basin; Spheniscidae
MeSH headings : Animals; Biometry / methods; Bone and Bones / anatomy & histology; Bones of Upper Extremity / anatomy & histology; Cervical Vertebrae / anatomy & histology; Extinction, Biological; Fossils; Geological Phenomena; Peru; Skull / anatomy & histology; Spheniscidae / anatomy & histology; Spheniscidae / classification
TL;DR: Fossils from Peru document that penguins expanded to nearly the whole of their extant latitudinal range early in their evolutionary history and during one of the warmest intervals in the Cenozoic. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Species names in the PhyloCode: The approach adopted by the international society for phylogenetic nomenclature

SYSTEMATIC BIOLOGY, 57(3), 507–514.

MeSH headings : Classification / methods; Phylogeny; Societies; Terminology as Topic
TL;DR: Gene trees and species trees are not the same, and Bayesian posterior distributions of a species phylogeny using estimated gene tree distributions are recommended. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

A basal Dromaeosaurid and size evolution preceding avian flight

SCIENCE, 317(5843), 1378–1381.

By: A. Turner n, D. Pol n, J. Clarke n, G. Erickson n & M. Norell n

MeSH headings : Animals; Biological Evolution; Birds / anatomy & histology; Body Size; Bone and Bones / anatomy & histology; Dinosaurs / anatomy & histology; Dinosaurs / classification; Flight, Animal; Fossils; Mongolia; Phylogeny
TL;DR: Change in theropod body size leading to flight's origin was not unidirectional, and the two dinosaurian lineages most closely related to birds, dromaeosaurids and troodontids, underwent four independent events of gigantism, and in some lineages size increased by nearly three orders of magnitude. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

First Atlantic record of the puffin Cerorhinca (Aves, Alcidae) from the Pliocene of North Carolina

JOURNAL OF VERTEBRATE PALEONTOLOGY, 27(4), 1039–1042.

By: N. Smith, S. Olson & J. Clarke n

TL;DR: This poster presents a probabilistic simulation of the response of the immune system to the presence of carbon dioxide in the stratosphere and shows clear patterns of decline in response to CO2 levels over time. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

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

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 104(28), 11545–11550.

By: J. Clarke n, D. Ksepka*, M. Stucchie, M. Urbina*, N. Giannini*, S. Bertelli*, Y. Narvez, C. Boyd n

author keywords: aves; evolution; Peru; fossil; Bergmann's rule
MeSH headings : Animals; Biodiversity; Biological Evolution; Climate; Fossils; Natural History; Peru; Phylogeny; Spheniscidae / anatomy & histology
TL;DR: The most comprehensive phylogenetic analysis of Sphenisciformes to date, combining morphological and molecular data, places the new species outside the extant penguin radiation (crown clade: Speniscidae) and supports two separate dispersals to equatorial regions during greenhouse earth conditions. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Bird evolution

Current Biology, 16(10), R350–354.

By: J. Clarke & K. Middleton

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

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

JOURNAL OF ANATOMY, 208(3), 287–308.

By: J. Clarke n, Z. Zhou* & F. Zhang*

author keywords: birds; flight; morphological evolution; Ornithurae
MeSH headings : Animals; Biological Evolution; Birds / anatomy & histology; Bone and Bones / anatomy & histology; China; Feathers; Flight, Animal / physiology; Fossils; Phylogeny; Tail / anatomy & histology
TL;DR: The complete articulated holotype specimen of Yixianornis grabaui, from the Early Cretaceous Jiufotang Formation of Liaoning Province, in north‐eastern China, arguably the best‐preserved basal ornithurine specimen yet discovered, provides the earliest evidence consistent with the presence of extant avian tail feather fanning. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Definitive fossil evidence for the extant avian radiation in the Cretaceous

Nature, 433(7023), 305–308.

By: J. Clarke, C. Tambussi, J. Noriega, G. Erickson & R. Ketcham

Source: NC State University Libraries
Added: August 6, 2018

2005 journal article

New avian remains from the Eocene of Momgolia and the phylogenetic position of the Eogfruidaelia (Aves, Gruoidea)

American Museum Novitates, (3494), 17-.

By: J. Clarke, M. Norell & D. Dashzeveg

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Morphology, phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae: Ornithurae).

Bulletin of the American Museum of Natural History, 286(2004), 1–179.

By: J. Clarke

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

New avialan remains and a review of the known avifauna from the Late Cretaceous Nemegt Formation of Mongolia

American Museum Novitates, (3447), 12-.

By: J. Clarke & M. Norell

Source: NC State University Libraries
Added: August 6, 2018

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