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Grallator ssatoi
Taxonomy
Jeholosauripus ssatoi was named by Yabe et al. (1940) [originally spelled "s-satoi"]. It is considered to be a form taxon. Its type specimen is TIU 61677, a footprint, and it is a trace fossil. Its type locality is Ssuchiatzu tracksite, which is in a Kimmeridgian/Valanginian terrestrial sandstone/conglomerate in the Tuchengzi Formation of China.
It was recombined as Grallator ssatoi by Zhen et al. (1989), Lockley and Matsukawa (1998), Peng et al. (2005), Fujita et al. (2008), Xing et al. (2009), Sullivan et al. (2009), Xing et al. (2011), Lockley et al. (2013), Lockley et al. (2014), Xing et al. (2015), Xing et al. (2015), Li et al. (2022).
It was recombined as Grallator ssatoi by Zhen et al. (1989), Lockley and Matsukawa (1998), Peng et al. (2005), Fujita et al. (2008), Xing et al. (2009), Sullivan et al. (2009), Xing et al. (2011), Lockley et al. (2013), Lockley et al. (2014), Xing et al. (2015), Xing et al. (2015), Li et al. (2022).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1940 | Jeholosauripus ssatoi Yabe et al. p. 169–170 fig. 1 |
| 1941 | Jeholosauripus ssatoi Noda and Shikama p. 477 |
| 1942 | Jeholosauripus ssatoi Shikama pp. 23-25 |
| 1958 | Jeholosauripus ssatoi Kuhn p. 27 |
| 1960 | Jeholosauripus ssatoi Young p. 54 |
| 1963 | Jeholosauripus ssatoi Kuhn p. 100 |
| 1971 | Jeholosauripus ssatoi Haubold p. 68 |
| 1974 | Jeholosauripus ssatoi Haubold p. 138 |
| 1984 | Jeholosauripus ssatoi Cheng p. 222 |
| 1989 | Grallator ssatoi Zhen et al. p. 188 |
| 1991 | Jeholosauripus ssatoi Azuma and Takeyama p. 48 |
| 1998 | Grallator ssatoi Lockley and Matsukawa p. 136 |
| 2005 | Grallator ssatoi Peng et al. |
| 2008 | Grallator ssatoi Fujita et al. p. 41 fig. 10 |
| 2009 | Grallator ssatoi Sullivan et al. p. 36 |
| 2009 | Jeholosauripus ssatoi Xing et al. p. 23 |
| 2009 | Grallator ssatoi Xing et al. p. 708 |
| 2011 | Grallator ssatoi Xing et al. p. 431 |
| 2013 | Grallator ssatoi Lockley et al. p. 10 |
| 2014 | Grallator ssatoi Lockley et al. p. 775 |
| 2015 | Grallator ssatoi Xing et al. p. 1011 |
| 2015 | Grallator ssatoi Xing et al. p. 17 |
| 2022 | Grallator ssatoi Li et al. p. 4232 |
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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.
†Grallator ssatoi Yabe et al. 1940
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Zhen et al. 1989 | Plantigrade, tridactyl, but no trace of a hallux, lateral digits, nor caudal impression. General outline deltoid. Proximal end of III starting much anterior to that of II and IV. Size rather small: length of footprints is 7.0–12.0 cm and the width is 5.0–8.5 cm. The angles between the digits are II-14°-III-13°-IV. | |
| G. Peng et al. 2005 | Three-toed footprints made by small, bipedal and digitigrate coelurosaurs. Length of each footprint is about twice of its width. The divarication between digit II and III is 14°~29°, and that between digit III and IV is 13°~27°. Digit III is much longer than digit II and IV. No impressions of hallux and tail. |