Lythronax is a genus of tyrannosaurid dinosaur that lived in North
America around 80.6–79.9 million years ago. Size estimates for
Lythronax have ranged between 5 and 8 m (16 and 26 ft) in length, and
between 0.5 and 2.5 t (1,100 and 5,500 lb) in weight. It was a heavily
built tyrannosaurid; as a member of that group, it would have had small,
two-fingered forelimbs, strong hindlimbs, and a very robust skull. The
rear part of the skull of Lythronax appears to have been very broad,
with eye sockets that faced forwards like those of Tyrannosaurus.
Lythronax is the oldest known member of the family Tyrannosauridae, and
it is thought to have been more basal than Tyrannosaurus. Due to its
age, Lythronax is important for understanding the evolutionary origins
of tyrannosaurids, including the development of their anatomical
specializations. The forward-facing eyes of Lythronax gave it depth
perception, which may have been useful during pursuit predation or
ambush predation.
Read more: <https://en.wikipedia.org/wiki/Lythronax>
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Today's selected anniversaries:
1561:
The spire of Old St Paul's Cathedral in London was destroyed by
fire, probably caused by lightning.
<https://en.wikipedia.org/wiki/Old_St_Paul%27s_Cathedral>
1920:
The Kingdom of Hungary lost 72% of its territory and 64% of its
population with the signing of the Treaty of Trianon in Paris.
<https://en.wikipedia.org/wiki/Treaty_of_Trianon>
1940:
Second World War: The remaining Allied forces protecting the
Dunkirk evacuation surrendered, ending the Battle of Dunkirk; in
response, British prime minister Winston Churchill gave a speech in
which he declared "We shall fight on the beaches".
<https://en.wikipedia.org/wiki/We_shall_fight_on_the_beaches>
1974:
Major League Baseball's Cleveland Indians hosted Ten Cent Beer
Night, but had to forfeit the game to the Texas Rangers due to rioting
by drunken fans.
<https://en.wikipedia.org/wiki/Ten_Cent_Beer_Night>
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Wiktionary's word of the day:
ghrelin:
(biochemistry) A peptide hormone, secreted in the stomach when empty,
that increases appetite and secretion of growth hormone from the
pituitary gland.
<https://en.wiktionary.org/wiki/ghrelin>
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Wikiquote quote of the day:
Don't worry that children never listen to you; worry that they
are always watching you.
--Robert Fulghum
<https://en.wikiquote.org/wiki/Robert_Fulghum>