@misc{s21b4161c8c41c72b45f563eacff4b5a0578435fcb,
    author = "River, Judith and Deinonychus",
    title = "THE SMALL PREDATORY DINOSAURS OF THE MID . . MESOlOIC : THE HORNED THEROPODS OF THE MORRISON AND GREAT OOLITE-ORNITHOLESTES AND PROCERATOSAURUS-AND THE SICKLE . . CLAW THEROPODS OF THE CLOVERLY , DJADOKHTA AND",
    url = "https://www.semanticscholar.org/paper/1b4161c8c41c72b45f563eacff4b5a0578435fcb",
    is_oa = "true",
    semanticscholar_citation_count = "5",
    semanticscholar_id = "1b4161c8c41c72b45f563eacff4b5a0578435fcb"
}

@article{bilbey1974petrology,
    author = "Bilbey, Sue Ann",
    title = "Petrology of Morrison Formation, Dinosaur Quarry, Utah: ABSTRACT",
    year = "1974",
    journal = "AAPG Bulletin",
    url = "https://doi.org/10.1306/83d91556-16c7-11d7-8645000102c1865d",
    doi = "10.1306/83d91556-16c7-11d7-8645000102c1865d",
    volume = "58"
}

@book{crossref1974petrology,
    title = "Petrology of the Morrison Formation, Dinosaur Quarry Quadrangle, Utah",
    year = "1974",
    url = "https://doi.org/10.34191/ss-48",
    doi = "10.34191/ss-48"
}

@article{dodson1980taphonomy,
    author = "Dodson, Peter and Behrensmeyer, A. K. and Bakker, Robert T. and McIntosh, John S.",
    title = "Taphonomy and Paleoecology of the Dinosaur Beds of the Jurassic Morrison Formation",
    year = "1980",
    journal = "Paleobiology",
    abstract = "The Upper Jurassic Morrison Formation has yielded one of the richest dinosaur faunas of the world. Morrison sediments are distributed over more than a million square kilometers in the western United States and represent a mosaic of riverine, lacustrine and floodplain environments developed on a vast alluvial plain nourished by debris from the ancestral Rocky Mountains. Plant productivity must have been reasonably high to support abundant large-bodied herbivores, but the absence of coals, scarcity of small aquatic vertebrates, the abundance of oxidized sediments, and presence of calcretes lead us to believe that water was periodically in short supply. A strongly seasonal climate may have necessitated annual large-scale movements of large herbivores, accounting in part for their remarkably broad and uniform geographic distribution. Dinosaur diversity is lower in the Morrison than in the Late Cretaceous, and taphonomic alteration is higher. Massed accumulations of thousands of bones are characteristic of the Morrison. Morrison dinosaurs were not confined to specific depositional environments but were distributed across the complete spectrum of available habitats, from lakes to dry floodplains; this type of distribution is similar to that of large terrestrial mammals such as elephants and rhinos and is different from that of hippos and crocodiles. Common Morrison taxa were Camarasaurus, Apatosaurus, Diplodocus, Allosaurus and Stegosaurus; these genera probably constituted a true dinosaur community. Stegosaurus may have been partially segregated from the other genera, and Camptosaurus more strongly so. Camarasaurus and Diplodocus were gregarious, with juveniles and subadults of the former particularly common; Apatosaurus was less abundant and more solitary in its habits. Juveniles and subadults are known for a number of dinosaurs.",
    url = "https://doi.org/10.1017/s009483730000676x",
    doi = "10.1017/s009483730000676x",
    number = "2",
    pages = "208-232",
    volume = "6"
}

@misc{dodson1980taphonomy2,
    author = "Dodson, P. and Behrensmeyer, A. K. and Bakker, R. T. and McIntosh, J. S",
    title = "Taphonomy and paleoecology of the dinosaur beds of the Jurassic Morrison Formation",
    year = "1980",
    howpublished = "Paleobiology, v. 6, p. 208-232",
    note = "talkorigins\_source = {true}; raw\_reference = {Dodson, P., Behrensmeyer, A. K., Bakker, R. T., and McIntosh, J. S., 1980, Taphonomy and paleoecology of the dinosaur beds of the Jurassic Morrison Formation: Paleobiology, v. 6, p. 208-232.}"
}

@article{doi101130001676061986971163naldts20co2,
    author = "Lockley, M. and Houck, K. and Prince, Nancy K.",
    title = "North America's largest dinosaur trackway site: Implications for Morrison Formation paleoecology",
    year = "1986",
    journal = "Geological Society of America Bulletin",
    url = "https://www.semanticscholar.org/paper/8598404bd4861396cab12b9062a90a0b06d2713c",
    doi = "10.1130/0016-7606(1986)97<1163:NALDTS>2.0.CO;2",
    is_oa = "true",
    number = "10",
    pages = "1163",
    semanticscholar_citation_count = "135",
    semanticscholar_id = "8598404bd4861396cab12b9062a90a0b06d2713c",
    volume = "97"
}

@techreport{lockley1986north3,
    author = "Lockley, M. and Houck, K. and Prince, N. K",
    title = "North America's largest dinosaur trackway site",
    year = "1986",
    howpublished = "Implications for Morrison Formation paleoecology: Geological Society of America Bulletin, v. 97, p. 1163-1176",
    note = "talkorigins\_source = {true}; raw\_reference = {Lockley, M., Houck, K., and Prince, N. K., 1986, North America's largest dinosaur trackway site: Implications for Morrison Formation paleoecology: Geological Society of America Bulletin, v. 97, p. 1163-1176.}"
}

@misc{paul1988the4,
    author = "Paul, G. S",
    title = "THe horned theropods of the Morrison and Great Oolite, and the sickle-claw theropods of the Cloverly, Djadokhta and Judith River",
    year = "1988",
    howpublished = "Hunteria, v. 2, p. 1-9",
    note = "talkorigins\_source = {true}; raw\_reference = {Paul, G. S., 1988, THe horned theropods of the Morrison and Great Oolite, and the sickle-claw theropods of the Cloverly, Djadokhta and Judith River: Hunteria, v. 2, p. 1-9.}"
}

@incollection{chure1989the,
    author = "Chure, Daniel J. and Engelmann, George F.",
    title = "The fauna of the Morrison Formation in Dinosaur National Monument",
    year = "1989",
    booktitle = "Mesozoic/Cenozoic Vertebrate Paleontology: Classic Localities, Contemporary Approaches. Salt Lake City, Utah to Billings, Montana, July 19–27, 1989",
    url = "https://doi.org/10.1029/ft322p0008",
    doi = "10.1029/ft322p0008",
    pages = "8-14"
}

@article{engelmann1990paleontological,
    author = "Engelmann, George",
    title = "Paleontological Survey of the Jurassic Morrison Formation in Dinosaur National Monument",
    year = "1990",
    journal = "The UW National Parks Service Research Station Annual Reports",
    abstract = "This project has undertaken to survey the surface exposures of the Jurassic Morrison Formation within Dinosaur National Monument (DINO) for fossil occurrences of any sort. The primary purpose of this survey is to provide an assessment of the extent and characteristics of the paleontological resource in this geologic formation within DINO. In so doing, the survey may also have the effect of discovering specimens of obvious and immediate scientific importance and providing observations that will contribute to an improved understanding of the stratigraphy of the Morrison Fm.",
    url = "https://doi.org/10.13001/uwnpsrc.1990.2865",
    doi = "10.13001/uwnpsrc.1990.2865",
    pages = "37-38",
    volume = "14"
}

@article{engelmann1992paleontological,
    author = "Engelmann, George",
    title = "Paleontological Survey of the Jurassic Morrison Formation in Dinosaur National Monument",
    year = "1992",
    journal = "The UW National Parks Service Research Station Annual Reports",
    abstract = "The paleontological survey of the Morrison Formation within Dinosaur National Monument (DINO) was planned as a three-year project. The objectives of the project have been to exhaustively search the exposures of the Morrison Fm. within DINO for fossil occurrences of any sort and to document in the files of the monument all known and newly discovered localities. This is the third and final year of the project. The work of the previous two years has been described in semiannual and annual reports and summarized in the 14th and 15th Annual Reports of the Research Center (Engelmann 1991, 1992).",
    url = "https://doi.org/10.13001/uwnpsrc.1992.3075",
    doi = "10.13001/uwnpsrc.1992.3075",
    pages = "71-73",
    volume = "16"
}

@article{s233d24686048e7db9492866bf33bb710afedf67bd,
    author = "Currie, P. and Padian, K.",
    title = "Encyclopedia of dinosaurs",
    year = "1997",
    url = "https://www.semanticscholar.org/paper/33d24686048e7db9492866bf33bb710afedf67bd",
    is_oa = "true",
    semanticscholar_citation_count = "206",
    semanticscholar_id = "33d24686048e7db9492866bf33bb710afedf67bd"
}

@incollection{crossref2009djadokhta,
    title = "Djadokhta Formation",
    year = "2009",
    booktitle = "Geological Formation Names of China (1866–2000)",
    url = "https://doi.org/10.1007/978-3-540-93824-8\_1690",
    doi = "10.1007/978-3-540-93824-8\_1690",
    pages = "239-239"
}

@article{demic2012the,
    author = "D’Emic, Michael D. and Foreman, Brady Z.",
    title = "The beginning of the sauropod dinosaur hiatus in North America: insights from the Lower Cretaceous Cloverly Formation of Wyoming",
    year = "2012",
    journal = "Journal of Vertebrate Paleontology",
    url = "https://doi.org/10.1080/02724634.2012.671204",
    doi = "10.1080/02724634.2012.671204",
    number = "4",
    pages = "883-902",
    volume = "32"
}

@article{foster2015theropod,
    author = "Foster, John R.",
    title = "Theropod Dinosaur Ichnogenus Hispanosauropus Identified from the Morrison Formation (Upper Jurassic), Western North America",
    year = "2015",
    journal = "Ichnos",
    url = "https://doi.org/10.1080/10420940.2015.1059335",
    doi = "10.1080/10420940.2015.1059335",
    number = "3-4",
    pages = "183-191",
    volume = "22"
}

@inproceedings{andmossbrucker2022the,
    author = "Mossbrucker, Matthew and Bakker, Robert and Turner, Bryan",
    title = "THE LAKES-MARSH ATLANTOSAURUS BEDS: A UNIQUE DINOSAUR ECOSYSTEM FROM THE UPPER JURASSIC MORRISON FORMATION OF COLORADO",
    year = "2022",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2022am-382566",
    doi = "10.1130/abs/2022am-382566"
}

@misc{doi1058809rbco7719,
    author = "Pomes, M.",
    title = "Stratigraphy, Paleontology and Paleobiogeography of Lower Vertebrates from the Cedar Mountain Formation (Lower Cretaceous), Emery County, Utah",
    year = "None",
    abstract = "Where present, the basal Buckhorn Member of the Cedar Mountain Formation (Aptian-Albian) separates the overlying main member from the mudrocks of the Tithonian Brushy Basin Member of the Morrison Formation. Without the Buckhorn, the mudrocks of the Cedar Mountain Formation appear to grade into those of the Morrison, so one is apt to call the entire sequence Morrison. Where the Cedar Mountain Formation appears to grade in to the Morrison, use of lower vertebrate teeth can provide an additional means to separate the Morrison from the Cedar Mountain Formation. Lower vertebrate teeth and associated microvertebrate remains (eggshell and bone fragments) occur in variable concentrations throughout the exposure of the Cedar Mountain Formation main member. Most of the lithologies exhibit varying degrees of paleosol development with siliceous tubules and calcareous tubules and nodules. The greatest concentration of microvertebrate remains occur in calcareous paleosols containing spindle nodules developed in natural levee siltstones at the Robinson Eggshell Quarry (REQ). Lesser concentrations occur in paleosols developed in overbank mudstones and claystones that contain chalcedony tubules at REQ and contain calcareous tubules and nodules at the Dave Hunter BS Quarry (DHBS) sections. The DHBS Quarry is found in an overbank carbonaceous mudstone lacking also occur in a lens of carbonaceous shale thought to represent a back swamp at the Rough Road Quarry. Until recently, the microvertebrate-carbonaceous shale association was thought to be the typical mode of occurrence within the Cedar Mountain Formation. Thus, microvertebrate remains may occur with sufficient frequency to have a stratigraphic application in the separation of the Morrison and Cedar Mountain formations. Lower vertebrates found in the DHBS and REQ sections of the Cedar Mountain Formation include teeth of the fish Lepidotes (Semiontiformes, Actinopterygii), a stingray (Dasyatidae, Batoidea), immature crocodilians: Bernissartia (Bernissartidae), Goniopholis (Goniopholididae), Pholidosauridae, Polydectes (?Goniopholididae), Machimosaurus (Teleosauridae), and Theriosuchus (Atoposauridae); and a theropod dinosaur (Coeluridae). The dimensions of the crocodilian teeth rarely exceeded 3.50 mm and probably belonged to nestlings and immature individuals. Furthermore, the association of dinosaur eggshell and tiny crocodilian teeth at all three locales suggests the proximity of reptilian nesting grounds to the channels that deposited the Cedar Mountain Formation. Periodic floods encroached on the nesting grounds and the teeth became sedimentary particles subject to transportation. However, fluvial transportation fluvial did not overtly damage the teeth. Most of the cracking and chipping of tooth enamel occurred during predation, or the teeth developed vertical cracks because of drying. The reptiles and fish of the Cedar Mountain Formation occupied various niches. Bernissartids, Lepidotes, and the dasyatid ray had low crowned teeth for eating mollusks. Polydectes had sharp, piercing teeth for eating fish. Goniopholids, pholidosaurids, and teleosaurids crunching teeth for eating crustaceans and ganoid fish. Finally, atoposaurids had a specialized, shearing dentition and probably ate fish or acted as scavengers. Finally, the association of theropod teeth with the crocodilian teeth may indicate a predator -prey relationship. Such diversity in lower vertebrates, especially crocodilians, depositional contrasts nature, that with have two units, presumed of similar shortages of crocodilians: the Cloverly Formation (Lower Cretaceous) and the Morrison. The scar city in crocodilians in these units may result from the lack of a concerted effort to recover tiny crocodilian teeth. Once such an effort is mounted, I predict the Cedar Mountain and Cloverly formations to have greater faunal similarity, whereas the Cedar Mountain fauna will contrast with that of the Morrison Formation in the types of crocodilians found. Two such crocodilians, bernissartids and pholidosaurids, are at present limited to the Cretaceous in North America and lack counterparts in the Late Jurassic. The above distinction is made because atopossaurids, goniopholids, and teleosaurids are known from the Jurassic of North America. During the Jurassic and Early Cretaceous, North America and Europe were joined and crocodilians dispersed between these continents. Because of the favorable plate configuration, pholidosaurs, Machimosaurus, and Theriosuchus display a pattern of Late Jurassic occurrence in Europe and Early Cretaceous appearance in North America. In addition, the crocodilian Bernissartia, known in the Barremian-Aptian beds at Galve (Province of Teruel), Spain, reached Texas in the lower Albian and arrived in Utah late in the Albian.",
    url = "https://www.semanticscholar.org/paper/5d030ed23033b8cb19a8d0a139de40ab5d91a685",
    doi = "10.58809/rbco7719",
    is_oa = "true",
    semanticscholar_citation_count = "1",
    semanticscholar_id = "5d030ed23033b8cb19a8d0a139de40ab5d91a685"
}