@article{walker1971nondeltaic,
    author = "WALKER, ROGER G.",
    title = "Nondeltaic Depositional Environments in the Catskill Clastic Wedge (Upper Devonian) of Central Pennsylvania",
    year = "1971",
    journal = "Geological Society of America Bulletin",
    url = "https://doi.org/10.1130/0016-7606(1971)82[1305:ndeitc]2.0.co;2",
    doi = "10.1130/0016-7606(1971)82[1305:ndeitc]2.0.co;2",
    number = "5",
    pages = "1305",
    volume = "82"
}

@techreport{walker1971nondeltaic1,
    author = "Walker, R. G",
    title = "Nondeltaic depositional environments in the Catskill clastic wedge (Upper Devonian) of central Pennsylvania",
    year = "1971",
    howpublished = "Geological Society of America Bulletin, v. 82, p. 1305-1326",
    note = "talkorigins\_source = {true}; raw\_reference = {Walker, R. G., 1971, Nondeltaic depositional environments in the Catskill clastic wedge (Upper Devonian) of central Pennsylvania: Geological Society of America Bulletin, v. 82, p. 1305-1326.}"
}

@misc{humphreys1972radioactive,
    author = "Humphreys, M. and Friedman, G.",
    title = "Radioactive trace elements in upper Devonian clastic rocks, north-central Pennsylvania",
    year = "1972",
    url = "https://doi.org/10.2172/4298535",
    doi = "10.2172/4298535"
}

@incollection{walker1975shorelines,
    author = "Walker, Roger G. and Harms, John C.",
    title = "Shorelines of Weak Tidal Activity: Upper Devonian Catskill Formation, Central Pennsylvania",
    year = "1975",
    booktitle = "Tidal Deposits",
    url = "https://doi.org/10.1007/978-3-642-88494-8\_12",
    doi = "10.1007/978-3-642-88494-8\_12",
    pages = "103-108"
}

@incollection{bridge1985unusual,
    author = "Bridge, John S. and Droser, Mary L.",
    title = "Unusual marginal-marine lithofacies from the Upper Devonian Catskill clastic wedge",
    year = "1985",
    booktitle = "The Catskill Delta",
    abstract = "Upper Devonian marginal-marine deposits exposed at Ashcraft Quarry, northern-most Pennsylvania, are unusual in that they contain limestone in addition to the sandstone and shale which is prevalent in the Catskill clastic wedge. A 3 m. thick lower unitis a lateral-accretion deposit, composed mainly of planar and cross-stratified sandstones with subordinate wavy-flaser bedding. Erosion surfaces beneath sandstones are overlain by intraformational breccias containing transported crinoid, brachiopod, bivalve and plant remains. Paleocurrents are unidirectional westward, but current ripples rarely indicate bidirectional paleoflow. The 3.5–5.5 m. limestone unit,comprising skeletal grainstone interbedded with calcareous sandstone, fines up or coarsens up from an extensive erosional base, and shows lateral-accretion bedding. The lime-grainstone contains abraded fragments of crinoids, brachiopods, bivalves, gastropods, and fish bones; also ankerite concretions, shale chips and plant remains. The whole unit is mainly large-scale cross-stratified, with bidirectional paleocurrents; and its top surface is marked by sandwaves, interfering wave and current ripples, and abundant burrows. The upper unitcomprises interbedded sandstones, siltstones and shales. Sheet-like and channel-filling sandstones have basal skeletal lags, large- and small-scale cross-stratification, planar stratification, and hummocky cross-stratification. Finer-grained strata have wavy-lenticular bedding (with wave and current ripple marks), concretions, and abundant burrows. Throughout the exposure fauna) diversity is low relative to coeval marine-shelf facies, and trace fossils belong mainly to the Skolithosichnofacies. The depositional environment of the lower unit, the limestone unit, and immediately adjacent beds, is laterally migrating sand bars adjacent to curved tidal channels with strong tidal-current asymmetry, probably in an estuary with marginal intertidal flats. Overlying deposits were introduced by periodic unidirectional currents and reworked by waves, possibly in a brackish coastal bay.",
    url = "https://doi.org/10.1130/spe201-p143",
    doi = "10.1130/spe201-p143",
    pages = "143-162"
}

@inproceedings{andbroussard2016new,
    author = "Broussard, David and Trop, Jeffrey and Donofrio, Rae and Daeschler, Ted",
    title = "NEW VERTEBRATE FOSSIL SITES FROM THE CATSKILL FORMATION OF NORTH-CENTRAL PENNSYLVANIA: RECONSTRUCTING LATE DEVONIAN ECOSYSTEMS AND ENVIRONMENTS",
    year = "2016",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2016ne-272379",
    doi = "10.1130/abs/2016ne-272379"
}

@inproceedings{andkochanov2017karst,
    author = "Kochanov, William E.",
    title = "KARST OF THE DEVONIAN CATSKILL FORMATION, NORTHEASTERN PENNSYLVANIA",
    year = "2017",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2017ne-290031",
    doi = "10.1130/abs/2017ne-290031"
}

@inproceedings{andbroussard2018detrital,
    author = "Broussard, David and Trop, Jeffrey M. and Benowitz, Jeffrey A. and Daeschler, Ted",
    title = "DETRITAL CHRONOSTRATIGRAPHIC CONSTRAINTS ON UPPER DEVONIAN TETRAPOD AND FISH ASSEMBLAGES IN CATSKILL FORMATION SITES OF NORTH-CENTRAL PENNSYLVANIA: RECONSTRUCTING LATE DEVONIAN ECOSYSTEMS AND ENVIRONMENTS",
    year = "2018",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2018ne-310476",
    doi = "10.1130/abs/2018ne-310476"
}

@inproceedings{andkochanov2018depositional,
    author = "Kochanov, William E.",
    title = "DEPOSITIONAL CYCLES WITHIN THE UPPER DEVONIAN CATSKILL FORMATION OF NORTHEASTERN PENNSYLVANIA",
    year = "2018",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2018ne-311059",
    doi = "10.1130/abs/2018ne-311059"
}

@inproceedings{andemick2023geochemistry,
    author = "Emick, Tami and Pfeifer, Lily and Trop, Jeffrey and Broussard, David",
    title = "GEOCHEMISTRY AND MAGNETIC SUSCEPTIBILITY OF UPPER DEVONIAN CATSKILL FORMATION PALEOSOLS, NORTH-CENTRAL PENNSYLVANIA",
    year = "2023",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2023am-393262",
    doi = "10.1130/abs/2023am-393262"
}