Apatosaurus ("deceptive lizard") is a genus of extinct sauropod dinosaurs that lived in North America during the Late Jurassic period. Fossils from the Morrison Formation of Colorado, Oklahoma, and Utah indicate an average length of 21–22.8 m (69–75 ft) and an average mass of 16.4–22.4 t (18.1–24.7 short tons), but a few specimens are 11% to 30% longer and 32.7–72.6 t (36.0–80.0 short tons). The cervical vertebrae are less elongated and more heavily constructed than those of Diplodocus, and the bones of the leg are much stockier despite being longer, implying that Apatosaurus was a more robust animal. The tail was held above the ground during normal locomotion. It had a single claw on each forelimb and three on each hindlimb. The skull is similar to that of Diplodocus. It browsed foliage and likely held its head elevated. Air sacs permeated and lightened its vertebrae. In North America during the late Jurassic, Apatosaurus lived alongside dinosaurs such as Diplodocus, Allosaurus, Camarasaurus, and Stegosaurus.

Read more: https://en.wikipedia.org/wiki/Apatosaurus

_______________________________ Today's selected anniversaries:

1811:

Peninsular War: An allied force of British, Spanish, and Portuguese troops clashed with the French at the Battle of Albuera south of Badajoz, Spain. https://en.wikipedia.org/wiki/Battle_of_Albuera

1916:

The United Kingdom and France signed the Sykes–Picot Agreement, a secret agreement considered to have shaped the Middle East, defining the borders of Iraq and Syria. https://en.wikipedia.org/wiki/Sykes%E2%80%93Picot_Agreement

1929:

The 1st Academy Awards ceremony was held at the Hollywood Roosevelt Hotel in Los Angeles. https://en.wikipedia.org/wiki/1st_Academy_Awards

1961:

The Military Revolution Committee, led by Park Chung-hee, carried out a bloodless coup against the government of Yun Bo-seon, ending the Second Republic of South Korea. https://en.wikipedia.org/wiki/May_16_coup

1975:

Japanese climber Junko Tabei became the first woman to reach the summit of Mount Everest. https://en.wikipedia.org/wiki/Junko_Tabei

_____________________________ Wiktionary's word of the day:

twaddle: (uncountable) Empty or silly idle talk or writing; nonsense, rubbish. https://en.wiktionary.org/wiki/twaddle

___________________________ Wikiquote quote of the day:

The light comes at the same time as the Voice. … I will not tell you all; I have not leave; my oath does not touch on that. My Voice is good and to be honored. I am not bound to answer you about it. I request that the points on which I do not now answer may be given me in writing. … You shall not know yet. There is a saying among children, that "Sometimes one is hanged for speaking the truth."   --Joan of Arc https://en.wikiquote.org/wiki/Joan_of_Arc