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Laplatasaurus araukanicus
Taxonomy
Laplatasaurus araukanicus was named by Huene (1927) [Nomen vanum in Huene 1927. MLP-CS 1127, 1128 form the lectotype.]. Its type specimen is MLP-CS 1127, 1128, a set of limb elements (MLP-CS 1128, right tibia and MLP-CS 1127, right fibula), and it is a 3D body fossil. Its type locality is canal, Cinco Saltos [MLP], which is in a Campanian/Campanian fluvial sandstone in the Anacleto Formation of Argentina.
It was recombined as Titanosaurus araukanicus by Powell (1986), Powell (1992), Salgado (1993), Bonaparte (1996), Salgado (1996), Mones (1997), Novas (1997), Salgado and Azpilicueta (2000), Salgado and García (2002), Salgado (2003), Powell (2003), Kellner et al. (2005) and Kellner et al. (2006).
It was recombined as Titanosaurus araukanicus by Powell (1986), Powell (1992), Salgado (1993), Bonaparte (1996), Salgado (1996), Mones (1997), Novas (1997), Salgado and Azpilicueta (2000), Salgado and García (2002), Salgado (2003), Powell (2003), Kellner et al. (2005) and Kellner et al. (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Laplatasaurus araukanicus Huene p. 256 |
| 1929 | Laplatasaurus araukanicus Huene p. 53 |
| 1931 | Laplatasaurus araukanicus Huene p. 188 |
| 1932 | Laplatasaurus araukanicus Stromer p. 4 |
| 1933 | Laplatasaurus araukanicus Rusconi p. 9 |
| 1939 | Laplatasaurus araukanicus Kuhn p. 89 |
| 1940 | Laplatasaurus araukanicus Lambert p. 22 |
| 1941 | Laplatasaurus araukanicus Lambert p. 55 |
| 1945 | Laplatasaurus araukanicus Serra p. 21 |
| 1947 | Laplatasaurus araukanicus Swinton p. 117 |
| 1964 | Laplatasaurus araukanicus Tatarinov p. 547 |
| 1970 | Laplatasaurus araukanicus Steel p. 76 |
| 1972 | Laplatasaurus araukanicus Mones p. 30 |
| 1976 | Laplatasaurus araukanicus Russell et al. |
| 1978 | Laplatasaurus araukanicus Bonaparte p. 558 |
| 1979 | Laplatasaurus araukanicus Bonaparte p. 231 |
| 1979 | Laplatasaurus araukanicus Bonaparte and Gasparini pp. 309-310 |
| 1980 | Laplatasaurus araukanicus Bonaparte and Powell p. 26 |
| 1984 | Laplatasaurus araukanicus Bonaparte p. 140 |
| 1986 | Laplatasaurus araukanicus Mourier et al. p. 173 |
| 1986 | Titanosaurus araukanicus Powell |
| 1986 | Laplatasaurus araukanicus Sanz p. 86 |
| 1990 | Laplatasaurus araukanicus McIntosh p. 395 |
| 1992 | Titanosaurus araukanicus Powell pp. 200-201 |
| 1993 | Titanosaurus araukanicus Salgado p. 266 |
| 1996 | Titanosaurus araukanicus Bonaparte p. 103 |
| 1996 | Titanosaurus araukanicus Salgado p. 358 |
| 1997 | Titanosaurus araukanicus Mones p. 212 |
| 1997 | Titanosaurus araukanicus Novas p. 684 |
| 2000 | Titanosaurus araukanicus Salgado and Azpilicueta p. 259 |
| 2002 | Titanosaurus araukanicus Salgado and García p. 212 |
| 2003 | Titanosaurus araukanicus Powell p. 22–23 |
| 2003 | Titanosaurus araukanicus Salgado p. 442 |
| 2003 | Laplatasaurus araukanicus Wilson and Upchurch p. 143 |
| 2004 | Laplatasaurus araukanicus Upchurch et al. p. 269 |
| 2005 | Titanosaurus araukanicus Kellner et al. p. 547 |
| 2005 | Laplatasaurus araukanicus Salgado and Coria p. 440 |
| 2006 | Titanosaurus araukanicus Kellner et al. p. 3 |
| 2007 | Laplatasaurus araukanicus Apesteguía p. 541 |
| 2007 | Laplatasaurus araukanicus Molnar and Wiffen p. 509 |
| 2008 | Laplatasaurus araukanicus Filippi and Garrido p. 587 |
| 2009 | Laplatasaurus araukanicus Salgado and Coria p. 12 |
| 2011 | Laplatasaurus araukanicus D'Emic and Wilson p. 62 |
| 2011 | Laplatasaurus araukanicus Marinho and Iori p. 344 |
| 2012 | Laplatasaurus araukanicus Candeiro and Harris p. 74 |
| 2012 | Laplatasaurus araukanicus Mannion and Otero p. 634 |
| 2013 | Laplatasaurus araukanicus Otero and Reguero p. 7 |
| 2015 | Laplatasaurus araukanicus Gallina and Otero p. 19 |
| 2015 | Laplatasaurus araukanicus Salgado et al. p. 420 |
| 2019 | Laplatasaurus araukanicus Wilson et al. p. 19 |
| 2022 | Laplatasaurus araukanicus Navarro et al. p. 327 |
| 2022 | Laplatasaurus araukanicus Tomaselli et al. p. 14 |
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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.
†Laplatasaurus araukanicus Huene 1927
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. E. Powell 2003 | Slender tibia, with cnemial crest longer than in Antarctosaurus, separated from the axis of the proximal end by a clear depression on the lateral face. Transversely wide distal end. Robustness index = 0.40. Slender fibula with prominent double lateral tuberosities, with a clearly defined depression on the anteroproximal corner of the external face. | |
| P. A. Gallina and A. Otero 2015 | Laplatasaurus araukanicus differs from other derived titanosauriforms by the presence of the following combination of characters (autapomorphies denoted with an asterisk): (1) slender tibia with deep cnemial fossa, extending more than one third the length of the shaft*; (2) fibula with extremely developed anterior fossa on the proximal end, laterally delimited by a thick margin* (a slightly less developed fossa is present in Uberabatitan and Jainosaurus); (3) fibula with a well-developed lateral tuberosity, similar to that one present in Neuquensaurus. |
Measurements
No measurements are available
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| Source: g = genus, infrao = infraorder | |||||
| References: Peczkis 1995, Marsh 1875 | |||||
Age range: base of the Early/Lower Campanian to the top of the Middle Campanian or 83.50000 to 70.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Campanian - Middle Campanian | Argentina (Río Negro) | Laplatasaurus araukanicus (type locality: 51573) |