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Taxonomy
Otozoum was named by Hitchcock (1847). It is the type genus of Otozoidae.
It was assigned to Batrachia by Hitchcock (1848), Owen (1861); to Pachydactyli by Quenstedt (1882); to Batrachia by Hitchcock (1898); to Orthopoda by Lull (1917); to Gigandipodidae by Sarjeant (1970); to Saurischia by Kuhn (1971); to Prosauropoda by Haubold (1974); to Prosauropoda by Lull (1953), Rainforth (2000), Lockley et al. (2002); to Sauropodomorpha by Irmis (2005); to Otozoidae by Lull (1904), Lull (1915), Kuhn (1958), Kuhn (1963), Haubold (1969), Haubold (1971), Demathieu and Haubold (1972), Lockley et al. (2006); and to Prosauropoda by Avanzini et al. (2003), Nicosia and Loi (2003), Lucas et al. (2006), Weishampel (2006).
It was assigned to Batrachia by Hitchcock (1848), Owen (1861); to Pachydactyli by Quenstedt (1882); to Batrachia by Hitchcock (1898); to Orthopoda by Lull (1917); to Gigandipodidae by Sarjeant (1970); to Saurischia by Kuhn (1971); to Prosauropoda by Haubold (1974); to Prosauropoda by Lull (1953), Rainforth (2000), Lockley et al. (2002); to Sauropodomorpha by Irmis (2005); to Otozoidae by Lull (1904), Lull (1915), Kuhn (1958), Kuhn (1963), Haubold (1969), Haubold (1971), Demathieu and Haubold (1972), Lockley et al. (2006); and to Prosauropoda by Avanzini et al. (2003), Nicosia and Loi (2003), Lucas et al. (2006), Weishampel (2006).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Otozoum Hitchcock p. 54 |
| 1848 | Otozoum Hitchcock p. 214 |
| 1861 | Otozoum Owen p. 190 |
| 1882 | Otozoum Quenstedt p. 131 |
| 1898 | Otozoum Hitchcock p. 402 |
| 1904 | Otozoum Lull p. 513 |
| 1915 | Otozoum Lull p. 222 |
| 1917 | Otozoum Lull p. 119 |
| 1953 | Otozoum Lull pp. 187-188 |
| 1958 | Otozoum Kuhn p. 23 |
| 1963 | Otozoum Kuhn p. 85 |
| 1969 | Otozoum Haubold p. 101 |
| 1970 | Otozoum Sarjeant p. 270 |
| 1971 | Otozoum Haubold p. 85 |
| 1971 | Otozoum Kuhn p. 23 |
| 1972 | Otozoum Demathieu and Haubold p. 806 |
| 1974 | Otozoum Haubold p. 46 |
| 2000 | Otozoum Rainforth p. 67 |
| 2002 | Otozoum Lockley et al. p. 378 |
| 2003 | Otozoum Avanzini et al. p. 190 |
| 2003 | Otozoum Nicosia and Loi p. 138 |
| 2005 | Otozoum Irmis p. 64 |
| 2006 | Otozoum Lockley et al. p. 205 |
| 2006 | Otozoum Lucas et al. p. 114 |
| 2006 | Otozoum Weishampel p. 140 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Otozoum Hitchcock 1847
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†Otozoum caudatum Hitchcock 1871
†Otozoum grandcombensis Gand et al. 2000
†Otozoum minus Lull 1915
†Otozoum moodii Hitchcock 1847
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Hitchcock 1848 | Toes four, directed forward, or obliquely forward. Bipedal. | |
| W. A. S. Sarjeant 1970 | Bipedal. Manus rarely present in the trackway. Pes plantigrade, functionally tetradactyl, hallux non-rotated. Digits broad, with well marked phalangeal pads; claws more or less rounded. Manus apparently pentadactyl, relatively small. Occasional tail trace. | |
| M. G. Lockley et al. 2006 | Pes pentadactyl with four anteriorly-directed digit impressions; digit III slightly longer than subequal digits II and IV, which are longer than digit I; digit V impression interpreted as a subrounded pad posterior to the coalesced metatarsophalangeal pads of digits III and IV; digits II-IV subparallel, laterally convex, and blunt, anteriorly or medially directed claw impressions; digit I impression less curved and slightly divergent medially with rspect to digit II; ichnophalangeal formula (including claw marks) 2-3-4-5-1; manus pentadactyl, much smaller than pes, outwardly rotated, with short digit impressions; digit I impression slightly longer and more prominent than digit II-IV impressions. |
Measurements
No measurements are available
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| Source: infrao = infraorder, c = class, subp = subphylum | |||||
| References: Norman and Weishampel 1991, Carroll 1988, Hendy et al. 2009 | |||||
Collections (26 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Carnian - Norian | Lesotho | O. sp. (202704) | |
| Late/Upper Triassic | United Kingdom (Wales) | O. sp. (74806) | |
| Norian | USA (Pennsylvania) | O. minus (55414) | |
| Norian | Lesotho (Maseru) | O. sp. (56029) | |
| Norian | Germany (Bayern) | O. sp. (139482) | |
| Norian | France (Occitanie) | O. grandcombensis (194070) | |
| Early/Lower Hettangian | Canada (Nova Scotia) | O. sp. (138976 138977 146189) | |
| Hettangian | USA (Colorado) | O. sp. (193011) | |
| Hettangian - Sinemurian | USA (Connecticut) | O. moodii (91574) | |
| Hettangian - Sinemurian | USA (Massachusetts) | O. minus (52985) O. moodii (52994 52995 52998) | |
| Early/Lower Jurassic | Namibia (Otjozondupa) | O. moodii (214425) | |
| Early/Lower Jurassic | Morocco (Ouarzazate) | O. sp. (206252) | |
| Pliensbachian - Toarcian | USA (Idaho) | O. sp. (195189) | |
| Pliensbachian - Toarcian | USA (Arizona/Utah) | O. sp. (60455) | |
| Pliensbachian - Toarcian | USA (Utah) | O. sp. (184683 195176 195177 195178 201625 222902 222907) |