Genus
Ichnogenus Formal taxon Extinct

Otozoum

Hitchcock 1847

Otozoum is an extinct ichnogenus of sauropodomorph dinosaur from the Late Triassic-Middle Jurassic sandstones. Footprints were made by heavy, bipedal or, sometimes, quadrupedal animals with a short stride that walked on four toes directed forward. These footprints are relatively large, over 20 cm in pes length. Otozoum differs from Plateosaurus by having a notable homopody.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
26
Group
Dinosaures
Herbivore Ground dwelling Terrestrial
Otozoum
click to enlarge
Otozoum tracks in the Dinosaur State Park and Arboretum, Rocky Hill, Connecticut, USA. The exhibit sign reads: "These large negative tracks were made by a heavy animal that walked on four toes and had a short stride. It may have been a prosauropod. All of these tracks have rare skin impressions. This specimen was removed from the Portland Quarry in 1896. Donated by Wesleyan University." © Daderot · CC BY-SA 3.0 · Wikimedia
PBDB Wikipedia
Classification
Dinosauria Unranked clade
Saurischia Unranked clade
Sauropodomorpha Unranked clade
Bagualosauria Unranked clade
Plateosauria Unranked clade
Anchisauria Unranked clade
Prosauropoda Unranked clade
Otozoidae Family
Otozoum Genus
Fossil sites 26 geolocated sites
Distribution
Top countries
🇺🇸 United States
16
🇨🇦 Canada
3
🇱🇸 Lesotho
2
🇬🇧 United Kingdom
1
🇩🇪 Germany
1
🇫🇷 France
1
🇲🇦 Morocco
1
🇳🇦 Namibia
1
Geological formations
Navajo-Nugget Sandstone
4
McCoy Brook
3
Molteno
1
Elliot
1
Plattensandstein
1
Gettysburg
1
Grès supérieurs et Argilites bariolées
1
Wingate Sandstone
1
Temporal distribution
Toarcian (184.2–174.7 Ma)
9
Pliensbachian (192.9–184.2 Ma)
2
Sinemurian (199.5–192.9 Ma)
5
Hettangian (201.4–199.5 Ma)
4
Norian (227.3–205.7 Ma)
6
Species (4)
Otozoum caudatum
Otozoum grandcombensis 227 Ma
Otozoum minus 227 Ma
Otozoum moodii 201 Ma
Images 1
Bibliography
Original description
E. Hitchcock. 1847. Description of two new species of fossil footmarks found in Massachusetts and Connecticut, or, of the animals that made them. The American Journal of Science and Arts, series 2 4(10):46-57
Bibliography (22)
A. Wagensommer, M. Latiano, and H. B. Mocke, S. D.'Orazi Porchetti. 2016. Dinosaur diversity in an Early Jurassic African desert: the significance of the Etjo Sandstone ichnofauna at the Otjihaenamaparero locality (Namibia). Neues Jahrbuch für Geologie und Paläontologie Abhandlungen 281(2):155-182 DOI ↗
M. Masrour, L. Ladel, and F. Pérez-Lorente. 2015. New theropod and prosauropod ichnites from Issil-n-Aït Arbi (Lower Jurassic, Central High Atlas, Morocco). Geogaceta 57:55-58
M. G. Lockley. 2011. Theropod- and prosauropod-dominated ichnofaunas from the Navajo-Nugget Sandstone (Lower Jurassic) at Dinosaur National Monument: implications for prosauropod behaviour and ecology. Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53:316-320
M. G. Lockley, A. R. Tedrow, and K. C. Chamberlain, N. J. Minter, J.-D. Lim. 2011. Footprints and invertebrate traces from a new site in the Nugget Sandstone (Lower Jurassic) of Idaho: implications for life in the northern reaches of the great Navajo-Nuggest erg system in the western USA. Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53:344-356
A. R. C. Milner, T. A. Birthisel, and J. I. Kirkland, BH Breithaupt, N. A. Matthews, M. G. Lockley, V. L. Santucci, S. Z. Gibson, D. D. DeBlieux, M. Hurlbut, J. D. Harris, P. E. Olsen. 2011. Tracking Early Jurassic dinosaurs across southwestern Utah and the Triassic-Jurassic transition. Field Trip Guide Book, 71st Annual Meeting of the Society of Vertebrate Paleontology Paris Las Vegas, Las Vegas, Nevada, November 2-5, 2011. Nevada State Museum Paleontological Papers 1:1-107
R. J. Cuffey, J. D. Inners, and G. M. Fleeger, R. C. Smith II, J. C. Neubaum, R. C. Keen, L. Butts, H. L. Delano, Vr A. Neubaum, R. H. Howe. 2006. Geology of the Gettysburg battlefield: how Mesozoic events and processes impacted American history. Excursions in Geology and History: Field Trips in the Middle Atlantic States. Geological Society of America Field Guide 8:1-16 DOI ↗
D. B. Loope. 2006. Dry-season tracks in dinosaur-triggered grainflows. Palaios 21:132-142 DOI ↗
M. G. Lockley, S. G. Lucas, and A. P. Hunt, R. Gaston. 2004. Ichnofaunas from the Triassic-Jurassic boundary sequences of the Gateway area, western Colorado: implications for faunal composition and correlations with other areas. Ichnos 11:89-102 DOI ↗
G. Gand, M. Vianey-Liaud, and G. Demathieu, J. Garric. 2000. Deux nouvelles traces de pas de Dinosaures du Trias supérieur de la bordure cévenole (La Grand-Combe, Sud-Est de la France) [Two new dinosaur footprints from the Upper Triassic of the Cevennes border (La Grande-Combe, southeastern France)]. Geobios 33(5):599-624 DOI ↗
M. G. Lockley, A. P. Hunt, and C. A. Meyer, E. C. Rainforth, R. J. Schultz. 1998. A survey of fossil footprint sites at Glen Canyon National Recreation Area (western USA): a case study in documentation of trace fossil resources at a national preserve. Ichnos 5(3):177-211 DOI ↗
M. G. Lockley and A. P. Hunt. 1995. Dinosaur Tracks and Other Fossil Footprints of the Western United States DOI ↗
S. Howe. 1994. Extracting dinosaur trackways: a Welsh experience. The Geological Curator 6(2):83-88 DOI ↗
P. E. Olsen. 1989. Stop 11.3: Wasson Bluff. Paleontology. Tectonic, Depositional, and Paleoecological History of Early Mesozoic Rift Basins, Eastern North America. Gulf, North Carolina, USA to Parrsboro, Nova Scotia, Canada. July 20–30, 1989. International Geological Congress Field Trip T-351
R. G. Grantham. 1986. Dinosaur tracks and mega-flutes in the Jurassic of Nova Scotia. First International Symposium on Dinosaur Tracks and Traces, Abstracts with Program
H. Haubold. 1971. Handbuch der Paläoherpetologie / Encyclopedia of Paleoherpetology. Part 18. Ichnia Amphibiorum et Reptiliorum Fossilium. DOI ↗
F. Ellenberger, P. Ellenberger, and L. Ginsburg. 1970. Les Dinosaures du Trias et du Lias en France et en Afrique du Sud, d'après les pistes qu'ils ont laissées [The Triassic and Liassic dinosaurs in France and South Africa, after their prints]. Bulletin de la Société Géologique de France, 7e série 12(1):151-159 DOI ↗
F. Ellenberger, P. Ellenberger, and J. Fabre, C. Mendrez. 1963. Deux nouvelles dalles à pistes de Vertébrés fossiles découvertes au Basutoland (Afrique du Sud) [Two new sites of fossil vertebrate prints discovered in Basutoland (South Africa)]. Comptes Rendus de la Société géologique de France 1963:315-317
R. S. Lull. 1915. Triassic life of the Connecticut Valley. State of Connecticut State Geological and Natural History Survey Bulletin 24:1-285 DOI ↗
E. Hitchcock. 1865. Supplement to the ichnology of New England. Supplement to the Ichnology of New England. A Report to the Government of Massachusetts in 1863
E. Hitchcock. 1858. Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, Especially its Fossil Footmarks, Made to the Government of the Commonwealth of Massachusetts DOI ↗
E. Hitchcock. 1856. Proceedings of the American Association for the Advancement of Science. Additional facts respecting the tracks of the Otozoum moodii on the Liassic sandstone of the Connecticut Valley 1856:228
E. Hitchcock. 1847. Description of two new species of fossil footmarks found in Massachusetts and Connecticut, or, of the animals that made them. The American Journal of Science and Arts, series 2 4(10):46-57