We examine rockfall susceptibility of folded strata in the Sevier fold-thrust belt exposed in American Fork Canyon in north-central Utah. Large-scale geologic mapping, talus production data, rock-mass-quality measurements, and historical rockfall data indicate that rockfall susceptibility is correlated with limb dip and curvature of the folded, cliff-forming Mississippian limestones. On fold li...

Historically, three obligate cave-dwelling species of Orconectes comprise an assemblage along the Cumberland Plateau of the southeastern United States, including Orconectes australis (with two subspecies, australis and packardi), O. incomptus, and O. sheltae. Using genetic data from three mitochondrial genes (cytochrome oxidase subunit I (COI), 12S, and 16S), we present evidence for four crypti...

Abstract This work describes a rhynchonellid and spire-bearing brachiopod fauna from the Ixtaltepec Formation of Oaxaca, Mexico. Leiorhynchoidea perrilliatae , Allorhynchus scientiana Anthracospirifer oaxacaensis are new species. The specific determination, along with information previously described taxa, allowed establishment precise relative ages different fossiliferous intervals (API-1 to A...

Rugose corals are described from the lower Viséan of Donets Basin. The new coral Dorlodotidae fam. nov. and species Cyathoclisia sukhensis sp. here introduced presence genera Amygdalophyllum Ceriodotia established for first time in priority generic name Protolonsdaleia over Eolithostrotionella is discussed. rugose assemblage Basin differs those upper Tournaisian Viséan. Global regional events m...

Background and Aims. The largely Mississippian strata of the Kilpatrick Hills, located at the western end of the Scottish Midland Valley, enclose several macrofossil floras that together contain ca 21 organ-species of permineralised plants and ca 44 organ-species of compressed plants, here estimated to represent 25 whole-plant species (Glenarbuck = nine, Loch Humphrey Burn Lower = 11, Upper = s...