Discover and read the best of Twitter Threads about #Cambrian

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This is a very interesting short report that has been posted by @Osinttechnical. There are a few insights on war and #leadership that we might gain from this summary, assuming the account from a 'Russian soldier' is authentic. 1/15 ๐Ÿงต
2/ First, the most lethal thing on the battlefield remains a human. But, the most lethal and effective weapon system on the ground in #Ukraine is artillery. The decline in the amount & use of #artillery since the Cold War must be fixed in western armies.
3/ But, as recent studies (including some really excellent reports from @RUSI_org) have shown, the industrial base for weapon and munitions production has declined. This will need to be redressed quickly.
Read 15 tweets
The #Cambrian Explosion marks the first appearance of many animal phyla in the #fossil record, but just how radical was it? I'm starting a new #FossilFriday thread where I post Cambrian fossil representatives of one phylum per week. Join me on this trek across the tree of life Image
Let's begin with #Annelida. In the #Cambrian these come mainly from deposits of exceptional preservation. Polychaetes and sipunculids, including species with potential affinities to living families, are represented.
#FossilFriday ImageImageImageImage
Image references:
Canadia - Parry & Caron 2019
Dannychaeta - Parry et al. 2020
Kootenayscolex - Nanglu & Caron 2018
Archaeogolfingia and Cambrosipunculus - Huang et al. 2004
Read 46 tweets
This week for #TakeoverThursday we have @elowenamos, a geology Honours student from @SciMelb @UnimelbESPG!

Elowen is going to tell us what a geology field trip entails and some of the work that comes from fieldwork samples! ๐Ÿง—

Perfect timing for @earthsciweek ๐ŸŒ Elowen standing outdoors in a hilly environment. She is wear
In a brief break between Victorian lockdowns in May, I was fortunate to be able to do fieldwork for my Honours project ๐Ÿ›ฃ๏ธ๐Ÿš—

As part of this field trip, I traveled to the beautiful lands of the Adnyamathanha, an area you may know as the Flinders Ranges and surrounds ๐ŸŒ„ Semi-arid landscape at sunset. In the distance are gentle hi
My motivation to undertake fieldwork was to collect samples of rocks from the early #Cambrian period, over 500 million years ago!

These rocks contain all sorts of treasures, including fossils of the very wacky-looking Archaeocyatha, like in this awesome @melbournemuseum model Geological map for the Copley map area in South Australia
Read 9 tweets

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