Thursday, May 19, 2016

Dave Hone's The Tyrannosaur Chronicles: at last, a review

A mere several weeks behind everyone else's, here it is - my review of The Tyrannosaur Chronicles, a book dedicated to the lives and times of the tyrannosauroids, as written by Dave Hone (for it is he). As a rare addition to the canon of popular books on dinosaur palaeobiology aimed at an adult audience, it's already quite an exciting prospect for us mere enthusiasts - but can Dr Dave do Sexy Rexy and friends justice? Of course he can.


Monday, May 9, 2016

Vintage Dinosaur Art: Animals of the Past Stamps - Part 2

Having had a look at the dinosaurs in Animals of the Past Stamps (1954), I asked our lovely readers if they'd be at all interested in seeing some of the stinkin' Cenozoic mammals. A handful of people were, so here we are. Unfortunately, I don't know half as much about prehistoric mammals as I do dinosaurs (in spite of being a descendant of some of them), so you'll have to forgive me when I fail to spot the bleedin' obvious. I mean, more so than usual. In any case, let's start at the Palaeogene beginning!


Wednesday, May 4, 2016

Win The Tyrannosaur Chronicles!

Following Niroot's previous post, we have at least 2 SIX copies of Dave Hone's new book, The Tyrannosaur Chronicles, to give away. The book is a superb examination (a chronicle, if you will) of the science surrounding that very sexiest of theropod clades, the tyrannosauroids. Highly accessible and yet detailed and comprehensive with it, The Tyrannosaur Chronicles has plenty to offer for dinosaur enthusiasts of every stripe. It's been met with a flurry of positive reviews, to which we will hopefully add some of our own in the not too distant future. But for now...

...We'd like you to draw something for us. Specifically, we'd like to see T. rex trying (at some anachronistic human activity). And succeeding. Because atrophied forelimbs never really held anyone back, damn it, and as Dave's book will make clear, tyrannosaurs were very successful and intriguing animals. Our favourites, based on some magic combination of originality and humour, will win copies of the book. We'll also be sure to corner Dave down a dark alley and force him to sign them, which is no mean feat, as he's probably as strong as Niroot and I put together.

Please upload your entries somewhere and link to them in a comment on this post. The deadline is June 6. Absolute anatomical accuracy is not essential, but points will be awarded for it. By way of inspiration, here's a wee drawing by Niroot depicting Tyrannosaurus, the artist, being inspired itself by a Troodon. There might be some movie reference in there (what day is it again?). Good luck y'all.

Monday, April 25, 2016

The Tyrannosaur Chronicles book launch

Friday the 22nd April saw the official launch of Dr. David Hone’s first book, The Tyrannosaur Chronicles (Bloomsbury Sigma), at Queen Mary University London, in the rather lovely book-lined Octagon of Queen’s Building -- which, if the British Museum’s Enlightenment Gallery should fail to become my library, would serve pretty well in its stead. Dr. Dave has written about the book’s publication on his blog, and it has already gained a deservedly positive reception, not least among which is Tom Holland’s glowing review on New Statesman. And we at Love in the time of Chasmosaurs are very much hoping to post one or two of our own in due course.

 
After an introduction by Dr. Steve Le Comber, Dr. Dave read two short extracts from the book. The first, on a method of prey despatch, was especially illuminating and memorable for me simply because the conjecture never once occurred to me, but which once posited made such elegant sense: 


‘The huge caudofemoralis muscles ran from the femur and up most of the first third of the tail in all dinosaurs. The tail gave a huge amount of power to the legs for running, was full of major blood vessels and was not surrounded by bone. A heavy bite anywhere around the thigh or first part of the tail might well have crippled an animal, leaving it unable to run and bleeding badly. Also, the tail was one of the first things a pursuing hunter would encounter in a fleeing animal, so using this technique would have reduced the chase distance, which would have been important especially if the prey animal was fundamentally faster than the tyrannosaur. Notably, there are two fossil hadrosaurs showing injury to the tails from tyrannosaur bites, and another with a wound to the leg; it’s a very limited data set, but it does nonetheless point to this as a strategy.’

 After the readings, the audience was treated to a live link-up via Skype with the book’s illustrator, Scott Hartman, whose trusted, accurate skeletals I’m sure require no introduction here. Dr. Dave prefaced this by pointing out the precision of Scott’s working methods, and recounting how, during the course of writing the book, when Dave was asked whether he had a second choice in mind in the event that Scott couldn’t be procured, his answer was a quite decisive ‘well, no.’


The last of the formalities was the purchasing and signing of copies of the book (all which were brought to the launch sold out), whilst guests also had time to ogle at, photograph, and even handle the various casts that were on display.

Dave points out that the manus here belongs to Albertosaurus rather than T. rex

It was a great pity that Marc couldn’t make it this time, or without question there would have been some choice goofy pictures with the fantastic skull, and you would have had a superior post than this besides (in more ways than one). Never mind. I did at any rate get a picture of another star who also happened to be there.

Luis Rey!
The evening itself was rounded off with the hosts and guests all trooping off to a nearby pub for a celebratory drink. Marc was more than especially missed at this point. On that note, he and I have been chatting over a little competition which we’re hoping to launch very shortly, with copies of this very book as prizes, hurrah! Watch this space, as they say.

    

Saturday, April 23, 2016

Horniman bonus dinosaurs

As an addendum to my previous post, it's worth mentioning that there's some dinosaur material on permanent display at the Horniman...just not very much. Perhaps the most noteworthy dinosaur display consists of a series of very dated scale models. They're most definitely of the pre-Renaissance, cold-blooded old school, but very charming with it. Here's a selection.

Friday, April 22, 2016

Monster Families at the Horniman

While everyone knows the few 'big name' museums in London (the NHM among them), the city also boasts a surprisingly large number of more low-key institutions, some of which are well worth seeking out for the nuttier natural history enthusiast. One of these would be the Horniman Museum, located a stone's throw from Forest Hill station in south-east London. Currently the Horniman is home to the travelling exhibition 'Dinosaurs: Monster Families', which is naturally what drew Niroot and I in (for the second and first visit, respectively). Here's the skinny, y'all.


Tuesday, April 19, 2016

Therapsids and You


Testing… Testing…
As this is my first post on LITC I’d like to say “Hello!” I live in South Africa, in the south- western windy end that’s known as the Cape of Good Hope (You know, the place the survivors travel to at the end of the 2012 movie…)
Anyway, I’ve pretty much always been a fossil nerd. As kids my twin sister and I would set up our own excavations. We’d dig up things we thought were dinosaur fossils with tools we found in our parents garage. Nowadays my love of paleontology is not restricted to dinosaurs. In South Africa we have a diverse range of geological formations that have preserved many different creatures from all across the expanse of time. One such group of creatures is a group that is very close to my heart, a group of animals that is not very well known: Therapsids.  
What are Therapsids?
Therapsids evolved in the middle Permian, around 260 million years ago. Therapsid fossils are not unique to South Africa. There are rich finds of these animals in Russia, though South Africa is where these Therapsids were first discovered. The Therapsids belong to a larger group of animals called the Synapsids (of which mammals are the only living examples) and a particularly well known Synapsid from North America  is Dimetrodon.
But Dimetrodon is a dinosaur right? Nope, wrong. But then why have I been finding Dimetrodon figurines alongside T.rex since childhood? Because Therapsids are so poorly understood. Also, let’s admit they do look pretty wild with that giant, colorful fan stuck to their backs. But Dimetrodon is not a dinosaur. So what was it, a reptile? Let’s return to the definition of a Synapsid.


Original artwork: Charles R Knight

Everybody Let’s Not Walk the Dinosaur
Synapsid is an umbrella term referring to a lineage of animals both living and extinct that evolved from Amniotes, early tetrapods that were terrestrial and bred on land. Reptiles and Synapsids both have this common ancestor; however, they were two different lines of descent and this cannot be stressed enough. Lizards, snakes, crocodiles, dinosaurs and the avian dinosaurs, birds, are all groups of animals we’re familiar with tracing their ancestry back to Reptiles.
But what are Synapsids? While early ones like Dimetrodon superficially resembled reptiles and dinosaurs, they were not reptiles. These animals were the ancient relatives and ancestors of mammals, including Humans.  In South Africa, a group of Synapsids named the Therapsids reigned as the dominant fauna for over 40 Million years, and included a bizarre group of animals that could have come straight out of a science-fiction novel. Gorgonospians and Therocephalians had long sabre-like canines, similar to the sabre-toothed cats that evolved much later and prowled the primeval flood plains of the Great Karoo, at a time when South America, Africa, India, Antarctica, and Australia were joined forming a single giant southern continent called Gondwana. Dog to cow-sized dicynodonts were tusk-bearing herbivores, who fed using a tortoise like beak. They were also the main prey of the gorgonopsians and therocephalians. Smaller meerkat-sized animals called Cynodonts included the ancestors of mammals and may even have had whiskers.
However, life on Earth never came closer to complete annihilation than it did at the end of the Permian period 252 million years ago, when 90% of all life (including the therapsids) was eradicated due to a run-away greenhouse warming event at that time. Fossil remains of these animals are found in the Karoo Basin today, and tell their story to Palaeontologists. A few of the small, burrowing therapsids species managed to survive and their descendants, the mammals, eked out a living through the Mesozoic (perhaps dodging the gargantuan steps of sauropods and T. rex!) The amazing part of this story is that the only group of Synapsids alive today are mammals, and us. Perhaps if our minute burrowing ancestors were not so resourceful we would not be here.
Therapsids and other synapsids are amazing evidence for the wonder of evolution. The fact that we humans can trace our ancestry back to these animals… I can’t get over how amazing that is. It’s something we should all know about.  In South Africa the fossil preservation is of such high resolution that the transition from therapsid to mammal can be tracked through time using these animals. Also we can now safely say that there are no reptile- people after all because humans did not evolve from reptiles…

Source: Flickr



Wednesday, April 13, 2016

Vintage Dinosaur Art: Animals of the Past Stamps

Now here's another properly old one (at long last) - a compendium of extinct animal 'stamps' from the Cold War world of 1954. Why put 'stamps' in fright quotes? Well, they're more like stickers, given that you wouldn't be able to send an angry letter to the palaeontological establishment of the day with any of them. This would, therefore, be a sticker album. But 'tis mere semantics - we're here to see a variety of prehistoric creatures presented in sub-technicolour retro stylee, and The Golden Play Book of Animals of the Past Stamps doesn't disappoint.


Monday, April 4, 2016

Baron, Scientist, Swashbuckler, Spy: The Colorful Life and Tragic Death of Franz Nopcsa

Hey, all! As a full time freelancer, I don't have much time to write for you anymore, but since my attempts to get this piece published have fallen through (twice) I thought I'd go ahead and find a home for it here. Enjoy!




First among his roles, he was an adventurer. He was a dashing Transylvanian baron, a openly queer man who studied the life habits of dinosaurs in ways that nobody before him had. He schemed for the crown of Albania, worked as a spy for the empire of Austria-Hungary, and left behind a wealth of scientific ideas and theories decades ahead of his time. And then, abruptly, he was forgotten. Few outside of the study of paleontology now remember his name.

The history of science is filled with strange lives and buried stories. But few lives were stranger than that of Franz Nopcsa von Felső-Szilvás: the flamboyant lord of dinosaurs, and (appropriately for a man who bore a startling resemblance to Freddy Mercury) perhaps the most interesting man ever to turn his attention to rock.

Friday, April 1, 2016

Mesozoic Miscellany 84

A few programming notes first before the roundup. You may recall that at the end of last year, I hinted at a move to WordPress. That's still in the planning stages, and I would love to make it happen. It would mean less time zapping spammers, better commenting functionality, and I'd have more control over the site design. We do need a bit of help to make that a reality. So if you direct your attention to the sidebar, you'll see a tip jar, for those of you who would like to support us. Besides offsetting future site fees, it will help us purchase books and other dinosaur media to feature on the blog. Thanks for all of the support over the years!

In the News

Tully Monster is (drumroll) a stem-lamprey? Freaky. More from NatGeo News, Ed Yong for The Atlantic, Discovery News, SciAm, and The Chicago Tribune.

Those of us who jumped on Twitter to follow the recent Paleofest at the Burpee Museum of Natural History in Rockford, IL were teased with tweets about a stunning new paper by a team led by Mary Schweitzer. Well, it's out now. The new study re-examines T. rex bone tissue that was hypothesized to be medullary bone - a type of bone tissue formed quickly to provided needed nutrients for pregnant females - in 2005. Looking closer at the tissue's chemical composition, the team has concluded that it contains too many chemical signatures of medullary bone to be anything else. MOR 1125, AKA B. rex, was pregnant. More from Brian Switek at Laelaps, Laura Geggel at LiveScience, and Jennifer Viegas at Discovery News.

A new early tyrannosaur is on the scene. Described by Steve Brusatte et al, Timurlengia euotica was "a horse-sized hunter with a big brain and keen hearing that would put us to shame." Read more at Sci-News and NPR. Denver Fowler shared an image of a braincase discovered at a dig at the American Prairie Reserve that looks similar, prompting him to wonder if he's also found a juvenile tyrannosaur.

It should be noted that Dave Hone, whose new book The Tyrannosaur Chronicles comes out this month, covered both of these tyrant stories at the Lost Worlds Revisited blog.

Around the Dinobogosphere

Speaking of WordPress, Liz Martin-Silverstone has headed there herself!

Our own Asher Elbein has been published by The Atlantic again. Check out his great Spinosaurus article!

Mark Witton has updated his overhead-view illustration of a fallen azhdarchid and the varied scavengers it attracts. It's beautiful. And it comes with a terrific post about azhdarchid paleoecology.

Jacquelyn Gill recently wrote about the challenges and rewards of thinking, and teaching about, the concept of deep time.

Shaena Montanari, currently the Newton International Fellow at the University of Edinburgh, was interviewed about her life as a paleontologist by The Sun.

At FiveThirtyEight, Maggie Koerth-Baker wrote about the travails of dinosaur taxonomy, including a statistical analysis of the researchers who have had the most newly-named taxa stick.

The website ScienceGrrl recently profiled Franzi Sattler, who is currently working on a Masters thesis about a tyrannosaur nicknamed Tristan.

Great, important read: conservation biologist Asia Murphy has written about the difficulties of being a black field researcher in predominantly white rural areas in the U.S.

At Prehistoric Beast of the Week, Chris interviewed paleontologist Carl Mehling.

At Extinct, the philosophy of paleontology blog, Leonard Finkelman wrote about endlings, the last surviving members of species.

Crowdfunding Pick

New or new-to-me creators taking to Patreon: Rebecca "Palaeoplushies" Groom, A Dinosaur A Day, and Brian Switek. Regarding Brian: He announced the sad news that Laelaps has been discontinued by National Geographic after the end of April. The people wept. But then, he then announced that a new home, yet to be revealed, has been found. The people got all jubilant!

Paleoart Pick

Scales can be a real problem. Sometimes, I see a new piece of paleoart pop up and it seems that the artist got so lost in drawing every. single. scale. that they've forgotten about more important aspects of the composition. I like what Chris DiPiazza has done here with his recent Pentaceratops piece, though. The scales have been given plenty of love, but they don't distract from the rest of the ornery beast (who seems to have struck the Fear of God into a pachycephalosaur. Additionally, the texture of the watercolor paper compliments the pattern of scales. Awesome stuff as usual from Mr. DiPiazza.

Pentaceratops, © Chris DiPiazza.