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Adam K. Huttenlocker
University of Southern California
36Publications
14H-index
520Citations
Publications 36
Newest
#1Matthew A. Crane (SC: University of Southern California)
#2Kyle M. Kato (SC: University of Southern California)
Last.Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
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#1Jason D. Pardo (U of C: University of Calgary)H-Index: 8
#2Bryan J. Small (Museum of Texas Tech University)H-Index: 10
Last.Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
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The Carboniferous–Permian transition (CPT) was Earth’s last pre-Quaternary icehouse–greenhouse transition, recording major shifts in late Palaeozoic climate regimes and increased continental seasonality over approximately 40 Myr. Its parallels to Quaternary climate change have inspired recent investigations into the impacts of purported rainforest collapse on palaeotropical vertebrate diversity, but little is known about how the protracted spatial dynamics of this transition impacted the emergen...
#1Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
#2David M. Grossnickle (U of C: University of Chicago)H-Index: 6
Last.Zhe-Xi Luo (U of C: University of Chicago)H-Index: 38
view all 5 authors...
The asterisked footnote to Extended Data Table 1 should state ‘*Including Thomasia and Haramiyavia’. This has been corrected online.
#1Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
#2David M. Grossnickle (U of C: University of Chicago)H-Index: 6
Last.Zhe-Xi Luo (U of C: University of Chicago)H-Index: 38
view all 5 authors...
Haramiyida was a successful clade of mammaliaforms, spanning the Late Triassic period to at least the Late Jurassic period, but their fossils are scant outside Eurasia and Cretaceous records are controversial1–4. Here we report, to our knowledge, the first cranium of a large haramiyidan from the basal Cretaceous of North America. This cranium possesses an amalgam of stem mammaliaform plesiomorphies and crown mammalian apomorphies. Moreover, it shows dental traits that are diagnostic of isolated ...
#1Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
#2Amy C. Henrici (Carnegie Museum of Natural History)H-Index: 13
Last.Stuart S. Sumida (CSUSB: California State University, San Bernardino)H-Index: 9
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Abstract The Carboniferous–Permian (C–P) transition records a shift in the composition and environmental setting of tropical flora and vertebrate assemblages across western and central Pangea. Here we report the discovery of a rare, multitaxic bonebed in the lower Halgaito Formation (Cutler Group) in Valley of the Gods and its vicinity (San Juan County), southeast Utah, USA. The assemblage, which comprises carcasses and disarticulated bones and teeth, preserves aquatic and semi-terrestrial eleme...
#1Jason D. Pardo (U of C: University of Calgary)H-Index: 8
#2Bryan J. Small (TTU: Texas Tech University)H-Index: 10
Last.Adam K. Huttenlocker (SC: University of Southern California)H-Index: 14
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Abstract The origin of the limbless caecilians remains a lasting question in vertebrate evolution. Molecular phylogenies and morphology support that caecilians are the sister taxon of batrachians (frogs and salamanders), from which they diverged no later than the early Permian. Although recent efforts have discovered new, early members of the batrachian lineage, the record of pre-Cretaceous caecilians is limited to a single species, Eocaecilia micropodia. The position of Eocaecilia within tetrap...
#1Adam K. Huttenlocker (UofU: University of Utah)H-Index: 14
#2C. G. Farmer (UofU: University of Utah)H-Index: 21
Summary Vertebrate red blood cells (RBCs) display a range of sizes, spanning orders of magnitude in volume in different clades [1]. The importance of this size variation to diffusion during exercise is reinforced by functional links between RBC and capillary diameters [2, 3]. Small RBCs, such as those of mammals (which lack nuclei) and birds, contribute to shorter diffusion distances and permit relatively fast O 2 uptake kinetics [4]. Although constraints on RBC size have been tied to the cell's...
#1Jacqueline CodronH-Index: 9
#2Jennifer Botha-Brink (University of the Free State)H-Index: 16
Last.Kenneth D. Angielczyk (FMNH: Field Museum of Natural History)H-Index: 27
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Unlike modern mammalian communities, terrestrial Paleozoic and Mesozoic vertebrate systems were characterized by carnivore faunas that were as diverse as their herbivore faunas. The comparatively narrow food base available to carnivores in these paleosystems raises the possibility that predator-prey interactions contributed to unstable ecosystems by driving populations to extinction. Here we develop a model of predator-prey interactions based on diversity, abundance, and body size patterns obser...
#1Adam K. Huttenlocker (AMNH: American Museum of Natural History)H-Index: 14
#2Christian A. Sidor (UW: University of Washington)H-Index: 27
ABSTRACTTherocephalians were an ecologically diverse group of therapsids whose long stratigraphic record and widespread distribution during Permian and Triassic times make them important for understanding biogeographic patterns during a major faunal transition. Here, we describe a new therocephalian, Mupashi migrator gen. et sp. nov., from the upper Madumabisa Mudstone Formation (upper Permian) of Zambia's Luangwa Basin. The specimen has a long snout with a maxilla–vomerine contact on the hard p...
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