Lessemsaurus Temporal range:
Norian
~ | |
---|---|
![]() | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | † Sauropodomorpha |
Clade: | † Sauropoda |
Clade: | † Lessemsauridae |
Genus: | †
Lessemsaurus Bonaparte 1999 |
Species: | †L. sauropoides
|
Binomial name | |
†Lessemsaurus sauropoides
Bonaparte 1999
|
Lessemsaurus is an extinct genus of sauropodiform dinosaur belonging to Lessemsauridae.
The type species, L. sauropoides, was formally described by José Fernando Bonaparte in 1999 in honor of Don Lessem, a writer of popular science books. It was found in the Los Colorados Formation of the Ischigualasto-Villa Unión Basin in La Rioja Province, Argentina. [1]
It was discovered in strata dating to the Norian stage, around 210 million years ago. [2] [3] It is estimated to have reached 10–12 metres (33–39 ft) long and weighed over 7 metric tons (7.7 short tons), possibly up to 8–10 metric tons (8.8–11.0 short tons), in maximum body mass. [4] [5] [6] [7]
A cladogram after Pol, Garrido & Cerda, 2011, [8] illustrates a possible placing of Lessemsaurus and Antetonitrus in Sauropodomorpha:
In 2018, Apaldetti et al. recovered it as part of a clade they named Lessemsauridae, after Lessemsaurus. Their cladogram is reproduced below: [9]
The following cladogram shows the position of Lessemsaurus outside of Sauropoda, according to Oliver W. M. Rauhut and colleagues, 2020: [10]
Lessemsaurus Temporal range:
Norian
~ | |
---|---|
![]() | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | † Sauropodomorpha |
Clade: | † Sauropoda |
Clade: | † Lessemsauridae |
Genus: | †
Lessemsaurus Bonaparte 1999 |
Species: | †L. sauropoides
|
Binomial name | |
†Lessemsaurus sauropoides
Bonaparte 1999
|
Lessemsaurus is an extinct genus of sauropodiform dinosaur belonging to Lessemsauridae.
The type species, L. sauropoides, was formally described by José Fernando Bonaparte in 1999 in honor of Don Lessem, a writer of popular science books. It was found in the Los Colorados Formation of the Ischigualasto-Villa Unión Basin in La Rioja Province, Argentina. [1]
It was discovered in strata dating to the Norian stage, around 210 million years ago. [2] [3] It is estimated to have reached 10–12 metres (33–39 ft) long and weighed over 7 metric tons (7.7 short tons), possibly up to 8–10 metric tons (8.8–11.0 short tons), in maximum body mass. [4] [5] [6] [7]
A cladogram after Pol, Garrido & Cerda, 2011, [8] illustrates a possible placing of Lessemsaurus and Antetonitrus in Sauropodomorpha:
In 2018, Apaldetti et al. recovered it as part of a clade they named Lessemsauridae, after Lessemsaurus. Their cladogram is reproduced below: [9]
The following cladogram shows the position of Lessemsaurus outside of Sauropoda, according to Oliver W. M. Rauhut and colleagues, 2020: [10]