Anne Weil
Oklahoma State University, Anatomy and Cell Biology, Faculty Member
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Research Interests: Paleontology, Geochronology, Dinosaur Paleontology, Multidisciplinary, Mammals, and 21 morePlant Diversity, TIME, Fossils, Lizards, Animals, Vertebrates, Old World, Late Cretaceous, Body Size, Volcanic ash, North America, Marsupialia, Northern Hemisphere, Cedar Mountain Formation, Reproducibility of Results, Time, North American, Adaptive Response, Radioisotopes, Argon, and Marine Invertebrate
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Page 234. MEDIAL CRETACEOUS VERTEBRATES FROM THE CEDAR MOUNTAIN FORMATION, EMERY COUNTY, UTAH: THE MUSSENTUCHIT LOCAL FAUNA Richard L. Cifelli Oklahoma Museum of Natural History and ...
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Recent analyses have suggested that extinction and origination rates exhibit long-range correlations, implying that the fossil record may be controlled by self-organized criticality or other scale-free internal dynamics of the biosphere.... more
Recent analyses have suggested that extinction and origination rates exhibit long-range correlations, implying that the fossil record may be controlled by self-organized criticality or other scale-free internal dynamics of the biosphere. Here we directly test for correlations in the fossil record by calculating the autocorrelation of extinction [corrected] and origination rates through time. Our results show that extinction rates are uncorrelated beyond the average duration of a stratigraphic interval. Thus, they lack the long-range correlations predicted by the self-organized criticality hypothesis. In contrast, origination rates show strong autocorrelations due to long-term trends. After detrending, origination rates generally show weak positive correlations at lags of 5-10 million years (Myr) and weak negative correlations at lags of 10-30 Myr, consistent with aperiodic oscillations around their long-term trends. We hypothesize that origination rates are more correlated than extinction rates because originations of new taxa create new ecological niches and new evolutionary pathways for reaching them, thus creating conditions that favour further diversification.
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The fossil Eomaia scansoria, discovered in the Yixian Formation of Liaoning Province, China, and described by Ji et al. on page 816 of this issue 1 , is the earliest known member of the lineage leading to placental mammals. Eomaia ... more
The fossil Eomaia scansoria, discovered in the Yixian Formation of Liaoning Province, China, and described by Ji et al. on page 816 of this issue 1 , is the earliest known member of the lineage leading to placental mammals. Eomaia 'Dawn Mother' is exceptionally ...
Research Interests: Pharmacology, Biochemistry, Bioinformatics, Evolutionary Biology, Genetics, and 51 moreMarine Biology, Neuroscience, Environmental Science, Geophysics, Physics, Materials Science, Quantum Physics, Developmental Biology, Immunology, Climate Change, Molecular Biology, Structural Biology, Genomics, RNA, Computational Biology, Transcriptomics, Reproduction, Biotechnology, Systems Biology, Cancer, Biology, Metabolomics, Cell Cycle, Locomotion, Proteomics, Ecology, Drug Discovery, Evolution, China, Nanotechnology, Astrophysics, Neurobiology, Medicine, Multidisciplinary, Palaeobiology, Functional Genomics, Nature, Signal Transduction, Mammals, Astronomy, DNA, Phylogeny, Placenta, Fossils, Animals, Cell Signalling, Medical Research, Biological evolution, Skeleton, Tooth, and Earth Science
Research Interests: Physiology, Zoology, Morphology, Lemur, Female, and 7 moreAnimals, Male, Penis, Clitoris, Seasons, Sexual Differentiation, and Urogenital System
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ABSTRACT Isolated teeth representing several taxa of metatherian mammals were recovered from NMMNH locality L-4005 in the Naashoibito Member, Kirtland Formation, San Juan Basin, northwestern New Mexico. These include fragments of upper... more
ABSTRACT Isolated teeth representing several taxa of metatherian mammals were recovered from NMMNH locality L-4005 in the Naashoibito Member, Kirtland Formation, San Juan Basin, northwestern New Mexico. These include fragments of upper and lower molars and a fragmentary premolar that are referred to indeterminate “pediomyids,” an isolated p2 or p3 that is referred to an indeterminate peradectid, and two lower molars, an m1 or m2 and an m4 that are referable to the hatcheriforme metatherian Glasbius cf. G. intricatus. Two ...
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Research Interests: Ancient History, Pharmacology, Biochemistry, Bioinformatics, Evolutionary Biology, and 47 moreGenetics, Marine Biology, Neuroscience, Environmental Science, Geophysics, Physics, Materials Science, Quantum Physics, Developmental Biology, Immunology, Climate Change, Molecular Biology, Structural Biology, Genomics, RNA, Computational Biology, Transcriptomics, Biotechnology, Systems Biology, Cancer, Biology, Metabolomics, Cell Cycle, Proteomics, Ecology, Drug Discovery, Evolution, Population Dynamics, Nanotechnology, Biodiversity, Astrophysics, Neurobiology, Medicine, Multidisciplinary, Palaeobiology, Functional Genomics, Nature, Signal Transduction, Astronomy, DNA, Recovery from Mass Extinction Events, Fossils, Cell Signalling, Medical Research, Periodicity, Time Factors, and Earth Science
Both new discoveries and phylogenetic analyses have shed light on this question in recent years, and there is some evidence of faunal exchange between North America and Asia. Elements of a North American mammalian fauna from about 100 MYA... more
Both new discoveries and phylogenetic analyses have shed light on this question in recent years, and there is some evidence of faunal exchange between North America and Asia. Elements of a North American mammalian fauna from about 100 MYA resemble Asian taxa, ...
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On page 53 of this issue, Luo et al. 1 argue that mammals with tribosphenic teeth evolved not once but twice, after the supercontinent of Pangaea pulled apart more than 160 million years ago. According to their hypothesis, one lineage... more
On page 53 of this issue, Luo et al. 1 argue that mammals with tribosphenic teeth evolved not once but twice, after the supercontinent of Pangaea pulled apart more than 160 million years ago. According to their hypothesis, one lineage radiated across the southern landmass of ...
Research Interests: Pharmacology, Biochemistry, Bioinformatics, Evolutionary Biology, Genetics, and 45 moreMarine Biology, Neuroscience, Environmental Science, Geophysics, Physics, Materials Science, Quantum Physics, Developmental Biology, Immunology, Climate Change, Molecular Biology, Structural Biology, Genomics, RNA, Computational Biology, Transcriptomics, Biotechnology, Systems Biology, Cancer, Biology, Metabolomics, Cell Cycle, Proteomics, Ecology, Drug Discovery, Evolution, Nanotechnology, Astrophysics, Neurobiology, Medicine, Multidisciplinary, Palaeobiology, Functional Genomics, Nature, Signal Transduction, Mammals, Astronomy, DNA, Fossils, Animals, Cell Signalling, Medical Research, Biological evolution, Tooth, and Earth Science
Research Interests: Paleontology, Geochronology, Dinosaur Paleontology, Multidisciplinary, Mammals, and 21 morePlant Diversity, TIME, Fossils, Lizards, Animals, Vertebrates, Old World, Late Cretaceous, Body Size, Volcanic ash, North America, Marsupialia, Northern Hemisphere, Cedar Mountain Formation, Reproducibility of Results, Time, North American, Adaptive Response, Radioisotopes, Argon, and Marine Invertebrate
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Most mammals use differentiated cheek teeth for chewing, to divide food into small pieces that can be swallowed easily and digested efficiently. Mammalian teeth are replaced at most once in an individual's lifetime, so exact... more
Most mammals use differentiated cheek teeth for chewing, to divide food into small pieces that can be swallowed easily and digested efficiently. Mammalian teeth are replaced at most once in an individual's lifetime, so exact positioning of them is possible, allowing the cutting ...
Research Interests: Pharmacology, Biochemistry, Bioinformatics, Evolutionary Biology, Genetics, and 47 moreMarine Biology, Neuroscience, Environmental Science, Geophysics, Physics, Materials Science, Quantum Physics, Developmental Biology, Immunology, Climate Change, Molecular Biology, Structural Biology, Genomics, RNA, Computational Biology, Transcriptomics, Biotechnology, Systems Biology, Cancer, Biology, Metabolomics, Cell Cycle, Proteomics, Ecology, Drug Discovery, Evolution, Nanotechnology, Astrophysics, Neurobiology, Medicine, Multidisciplinary, Palaeobiology, Functional Genomics, Nature, Signal Transduction, Mammals, Astronomy, DNA, Computer Simulation, Animals, Cell Signalling, Medical Research, Biological evolution, Mastication, Tooth, Structure activity Relationship, and Earth Science
Lucas and Hunt (1989) coined the term 'sauropod hiatus' to describe the absence of sauropod dinosaurs from Cenomanian–Campanian age sediments of western North America. Later, Sullivan and Lucas... more
Lucas and Hunt (1989) coined the term 'sauropod hiatus' to describe the absence of sauropod dinosaurs from Cenomanian–Campanian age sediments of western North America. Later, Sullivan and Lucas (2000) and Lucas and Sullivan (2000) reported the presence of late Campanian titanosaurian sauropods in the De-na-zin Member of the Kirtland Formation in the San Juan Basin of New Mexico. This significantly pushed back the first occurrence of the genus Alamosaurus well into the late Campanian. It would be the ...
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Mesodma is a relatively primitive member of the family Neoplagiaulacidae. Phylogenies of multituberculates suffer from missing data and too many taxa relative to the number of reliable characters, and all have low support indices. Some... more
Mesodma is a relatively primitive member of the family Neoplagiaulacidae. Phylogenies of multituberculates suffer from missing data and too many taxa relative to the number of reliable characters, and all have low support indices. Some plausible hypotheses suggest that Neoplagiaulacidae ...
The San Juan Basin of New Mexico is significant to studies of mammalian evolution in North America for at least two reasons: first, although not all strata produce mammalian fossils and erosional disconformities are present, mammalian... more
The San Juan Basin of New Mexico is significant to studies of mammalian evolution in North America for at least two reasons: first, although not all strata produce mammalian fossils and erosional disconformities are present, mammalian assemblages of Campanian through ...
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Research Interests: Ancient History, Pharmacology, Biochemistry, Bioinformatics, Evolutionary Biology, and 51 moreGenetics, Marine Biology, Neuroscience, Environmental Science, Geophysics, Physics, Materials Science, Quantum Physics, Developmental Biology, Immunology, Climate Change, Molecular Biology, Structural Biology, Genomics, RNA, Computational Biology, Transcriptomics, Biotechnology, Systems Biology, Cancer, Biology, Metabolomics, Cell Cycle, Diet, Proteomics, Ecology, Drug Discovery, Evolution, China, Nanotechnology, Astrophysics, Neurobiology, Medicine, Multidisciplinary, Palaeobiology, Functional Genomics, Nature, Signal Transduction, Mammals, Astronomy, DNA, Dinosaurs, Fossils, Animals, Skull, Cell Signalling, Medical Research, Body Size, Skeleton, Predatory Behavior, and Earth Science
Approximately 1500 eggshell fragments were recovered from a vertebrate bonebed (NMMNH L-4010) in the late Campanian Fruitland Formation in northwestern New Mexico, a locality that represents one of the few southern occurrences of fossil... more
Approximately 1500 eggshell fragments were recovered from a vertebrate bonebed (NMMNH L-4010) in the late Campanian Fruitland Formation in northwestern New Mexico, a locality that represents one of the few southern occurrences of fossil eggshells in North America. Here, we present the first description of Campanian eggshells from New Mexico and identify six different eggshell types (Continuoolithus sp., Porituberoolithus sp.,
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Over 1000 new specimens of multituberculate mammals from the earliest Paleocene of Garfield County in Eastern Montana provide taxonomically modest additions to the known early Puercan (Pu1) diversity of this area, yet add significantly to... more
Over 1000 new specimens of multituberculate mammals from the earliest Paleocene of Garfield County in Eastern Montana provide taxonomically modest additions to the known early Puercan (Pu1) diversity of this area, yet add significantly to our understanding of survivorship of the ...
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Among other results, our work enables a comparison of multituberculate mammal assemblages through the KT boundary interval in this area. Localities dated between 74.56 and 74.11 Ma in the Fossil Forest and Bisti Badlands produce a... more
Among other results, our work enables a comparison of multituberculate mammal assemblages through the KT boundary interval in this area. Localities dated between 74.56 and 74.11 Ma in the Fossil Forest and Bisti Badlands produce a Campanian multituberculate ...