Papers by Amanda Charobee
New Mexico Museum of Natural History and Science Bulletin, 2024
Dr. Martin G. Lockley explored and published extensively on vertebrate ichnological resources at ... more Dr. Martin G. Lockley explored and published extensively on vertebrate ichnological resources at Glen Canyon National Recreation Area (GLCA), primarily from the shores of Lake Powell in Utah and Arizona. Since 2010, a team from the St. George Dinosaur Discovery Site, working in conjunction with GLCA and National Park Service paleontologists, has focused research primarily on specific vertebrate tracksites in the Lower Jurassic Glen Canyon Group, especially in the Kayenta Formation and Navajo Sandstone. In the process, several significant body fossil sites have been discovered in the Upper Triassic Chinle Formation that have produced plants, fishes, and archosaurian reptiles. Additionally, two tritylodont bonebeds have been discovered, one each in the uppermost Kayenta Formation and lower Navajo Sandstone. As recognized by Lockley, GLCA, and NPS, the paleontological resources within GLCA park boundaries are extensive, ranging from the Pennsylvanian to Late Cretaceous, and the Pleistocene.
Here, we summarize the major fossil localities studied at GLCA in the last decade and also report on the first occurrences of these trace fossils from GLCA (in geologic order): cf. Psammichnites from the lower Cutler beds; cf. Oravaichnium, Scoyenia, and cf. Gwyneddichnium from the Shinarump Member of the Chinle Formation; Evazoum gatewayensis, cf. Evazoum, and Brachychirotherium from the lower Wingate Sandstone; Undichna, cf. Ameghinichnus, and cf. Rhynchosauroides from the Kayenta Formation; a large Eubrontes crouching trace with possible manus prints from the Kayenta–Navajo transition, the ninth known example worldwide and second from GLCA; and Navahopus tracks from the Navajo Sandstone. We also report on locally abundant Grallator tracks in the upper part of the Navajo Sandstone.
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Papers by Amanda Charobee
Here, we summarize the major fossil localities studied at GLCA in the last decade and also report on the first occurrences of these trace fossils from GLCA (in geologic order): cf. Psammichnites from the lower Cutler beds; cf. Oravaichnium, Scoyenia, and cf. Gwyneddichnium from the Shinarump Member of the Chinle Formation; Evazoum gatewayensis, cf. Evazoum, and Brachychirotherium from the lower Wingate Sandstone; Undichna, cf. Ameghinichnus, and cf. Rhynchosauroides from the Kayenta Formation; a large Eubrontes crouching trace with possible manus prints from the Kayenta–Navajo transition, the ninth known example worldwide and second from GLCA; and Navahopus tracks from the Navajo Sandstone. We also report on locally abundant Grallator tracks in the upper part of the Navajo Sandstone.
Here, we summarize the major fossil localities studied at GLCA in the last decade and also report on the first occurrences of these trace fossils from GLCA (in geologic order): cf. Psammichnites from the lower Cutler beds; cf. Oravaichnium, Scoyenia, and cf. Gwyneddichnium from the Shinarump Member of the Chinle Formation; Evazoum gatewayensis, cf. Evazoum, and Brachychirotherium from the lower Wingate Sandstone; Undichna, cf. Ameghinichnus, and cf. Rhynchosauroides from the Kayenta Formation; a large Eubrontes crouching trace with possible manus prints from the Kayenta–Navajo transition, the ninth known example worldwide and second from GLCA; and Navahopus tracks from the Navajo Sandstone. We also report on locally abundant Grallator tracks in the upper part of the Navajo Sandstone.