5 Works

Data from: Camerate and disparid crinoids from the late Kinderhookian Meadville Shale, Cuyahoga Formation of Ohio

William I. Ausich & Edgar W. Roeser
Crinoids were first reported from the Cuyahoga Formation in northeastern Ohio by James Hall in 1863. However, these crinoids have essentially not been re-examined in detail since the late 18th century. With the restudy of classical and more recent collections, ten (nine camerate and one disparid) species-level taxa are recognized from the late Kinderhookian Cuyahoga Formation, including the camerates Amphoracrinus viminalis (Hall, 1863); Aorocrinus helice Hall, 1863; Aorocrinus meyeri n. sp.; Aryballocrinus martini n. sp.;...

Data from: The Paleozoic origin of enzymatic lignin decomposition reconstructed from 31 fungal genomes

Dimitrios Floudas, Manfred Binder, Robert Riley, Kerrie Barry, Robert A. Blanchette, Bernard Henrissat, Angel T. Martínez, Robert Ortillar, Joseph W. Spatafora, Jagjit S. Yadav, Andrea Aerts, Isabelle Benoit, Alex Boyd, Alexis Carlson, Alex Copeland, Pedro M. Coutinho, Ronald P. De Vries, Patricia Ferreira, Keisha Findley, Brian Foster, Jill Gaskell, Dylan Glotzer, Paweł Górecki, Joseph Heitman, Cedar Hesse … & David S. Hibbett
Wood is a major pool of organic carbon that is highly resistant to decay, owing largely to the presence of lignin. The only organisms capable of substantial lignin decay are white rot fungi in the Agaricomycetes, which also contains non–lignin-degrading brown rot and ectomycorrhizal species. Comparative analyses of 31 fungal genomes (12 generated for this study) suggest that lignin-degrading peroxidases expanded in the lineage leading to the ancestor of the Agaricomycetes, which is reconstructed as...

Data from: Comparing taxonomic and geographic scales in the morphologic disparity of Ordovician through Early Silurian Laurentian Crinoids

Bradley Deline, William I. Ausich & Carlton E. Brett
Interpretations of morphologic radiations and macroevolutionary patterns are dependent on a priori choices of taxonomic and geographic scales of study. The results of disparity analysis at varying taxonomic (species and genus) and geographic (regional, biofacies, and community) scales are examined in a study of Ordovician though Early Silurian crinoids. Using discrete morphologic characters, we examined the disparity of 421 crinoids from 65 Laurentian biofacies. Crinoid disparity differs when analyzed at the regional and biofacies levels....

Data from: The precopulatory function of male genital spines in Drosophila ananassae [Doleschall] (Diptera: Drosophilidae) revealed by laser surgery

Karl Grieshop & Michal Polak
That male genital morphology evolves via postcopulatory sexual selection is a widely held view. In contrast, the pre-copulatory sexual selection hypothesis for genital evolution has received less attention. Here, we test the hypothesis that male genital spines of Drosophila ananassae promote competitive male copulation success. Using laser surgery to manipulate trait size, we demonstrate that incremental reductions of spine length progressively reduce male copulation success: males without spines failed entirely to copulate because of an...

Data from: New perspectives on transitions between ecological-evolutionary subunits in the \"type interval\" for Coordinated Stasis

, James J. Zambito, Carlton E. Brett, Sarah E. Kolbe & Arnold I. Miller
Northern Appalachian Basin deposits and associated fossils have served as exemplars for ecological-evolutionary investigations, and as the reference interval for the concept of coordinated stasis. Here, we examine faunal and environmental changes within the uppermost Hamilton and lowermost Genesee Groups of the late Middle Devonian succession of New York State. Dramatic diversity loss, faunal migrations, and ecological restructuring recognized in these strata have been used previously to define the end of the Hamilton ecological-evolutionary subunit,...

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  • University of Cincinnati
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  • University of Zaragoza
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  • University of Minnesota
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  • United States Department of Energy
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