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Hello guys!

Some of you may be wondering why I am not making art anymore. The fact is, I am! Plenty, actually, including a much more variant content like cenozoic mammals and pre-mesozoic fauna!
But, for several reasons, I am not being very active here on DeviantArt lately, and have instead moved to other social media platforms, mainly Facebook and Tumblr. So, if you want to keep yourself up-to-date with all the new artwork that I'm making almost weekly, take a look at the following links:

My paleoart page on Facebook

My Tumblr

I also suggest you to have a look at the Earth Archives webmagazine and the brand new Pteros, an online encyclopedia for pterosaur species, where my works are often being featured.

For those of you interested, I am open to commissions, although my availability at any given moment depends on how much stuff I have on my hands simultaneously. But if you want me to make a piece specially for you, contact me at j_lacerda_3@hotmail.com so we can discuss it! :)

Contest Closed!

Journal Entry: Tue Apr 2, 2013, 6:08 PM
Thanks for all of you who submitted your entries to my contest!
As said in the contest rules, I'll be selecting some entries to put up for you to vote on the winner.
Expect the poll to be up soon!

Toothed Birds

Journal Entry: Sun Mar 10, 2013, 4:08 PM
Common Merganser

Meet the Common Merganser and it's toothed beak.

Granted, these are not real teeth but serrations on the rhamphotheca. But by all means, they work as well as teeth in helping the merganser to catch slippery prey, and surely could cause a lot of danger when biting your hand.

They also serve to give us a nice glimpse on how most enantiornithes and even deinonychosaurs could have looked like, all birdy and feathery but with nasty teeth on their mouths. Oh, nature!

Image source: www.vancouverislandbirds.com/J…

Contest Exension

Journal Entry: Sat Mar 2, 2013, 3:34 AM
Upon request, I'm extending the deadline of my Torvosaurus Contest to March 31st. Some very nice entries were submitted, so I hope the deadline extension will bring even more participants into this!

For more info about the contest, check here: julio-lacerda.deviantart.com/a…

Let's get this going, guys!

Preening Feet

Journal Entry: Mon Feb 18, 2013, 3:11 PM
Name of Image
Name of Image

So, apparently Some species of hummingbird (sword-billed hummingbird in the pictures) use their feet for preening since their bills are so long and awkwardly-shaped. That makes me think of how deinonychosaurs might have used their toe claws to preen, almost like a dog. Perhaps therizinosaurs used their hand claws as well? That must've looked funny.

Images from BBC's Life of Birds, The Mastery of Flight.

Holy Crap, a meteor.

Journal Entry: Fri Feb 15, 2013, 2:48 AM
www.youtube.com/watch?v=90Omh7…

Now imagine this rock had the size of a mountain and you can imagine how the dinosaurs must've crapped their pants.
Pretty scary.

It has been a year since I've made my dinosaurian integument cladogram, and I think it's time for it to be remade. Some new discoveries have naturally made it obsolete, such as ornithomimid wings and Sciurumimus (although frankly I'm still skeptical about it being a megalosaur). But before that, I'd like to share some musings of mine.

Firstly, I'm still fond of the idea that primitive feathers are basal to Ornithodira in some way or another, perhaps evolving from dermal spines or something along those lines. But I'm starting to believe that, as wondrous as I find the idea of fuzzy ornitischians to be, extensive coats of feathers were really limited to coelurosaurs.

That's because, up until now, the only confirmed examples of something other than scales in ornitischians come from Psittacosaurus and Tianyulong. I'm sure these are homologous with each other and that primitive ornitichians had bristles as a basal condition, but I'm not so sure if these and coelurosaur feathers were really the same thing. What makes me doubt it is that, while most evidence so far seems to favor the idea that no big coelurosaur totally lost their feathers - the idea of feathered adult Tyrannosaurus being more accepted now than ever -  the confirmed presence of extensive scaly hide in hadrosaurs, stegosaurs, ceratopsians and ankylosaurs just makes it more likely that the bristles of primitive ornitischians weren't the same thing. If they were, why would these derived forms loose it? I'm sure a cover or fuzz would be more advantageous to endothermic megafauna.

The thing is, I don't think the quills on Tianyulong and Psittacosaurus served a thermoregulative function. They could well be another experiment in integument, no doubt arising from the same genetic base as the feathers that later appeared in theropods and earlier in pterosaurs, but they were structurally different and probably used just for show and were much more prone to be lost. I just don't see why every form of derived ornitischian of which we have skin preserved would loose their fuzz if they were the same as theropod feathers - that would contradict everything that has being said about tyrannosaurs and therizinosaurs and moas retaining theirs.

In short, I love the idea of fluffy heterodontosaurids with fur-like feathers all over their bodies, but evolutionarily it doesn't make sense to be, because otherwise hadrosaurs should be as hairy as buffalos. What do you guys think?
As per many people's request, I'm thinking about releasing by models for download so people can use it as reference for their work, or even for texturing and rigging and whatever (although I have to warn you that I'm far from a professional, so if you want to use them for games or animations, you may have to edit them heavily to fit your needs. I'm preetty sure they're messy in this regard, since I make them solely for the looks).

They're blender files, although if there's any way to convert them for sculptris, zbrush and other 3d editing software without messing them up please tell me so more people can make use of them.

As I've stated above, you can feel free to use them for anything as long as I'm being properly credited. I know some people that would like to use them for Zoo Tycoon 2, so that'll be fun.

Along with that, I'm thinking of doing a contest: I'll release a model of some kind of dinosaur in a specific position, and the challenge is to send me pictures that you've made using it (either paintings or 3d renderings if you prefer, although the first option is certainly less time-consuming). The catch is that you won't be allowed to change the animal's pose, only insert it in whatever scenery, context and lighting you like, and at any angle and perspective. The winner will get a free requested work from me. I'll release this model and the specific rules for the contest in due time, but I'd like to hear your feedback about this first.
Hello everyone!

I'm sorry for my general absence. This last month was a really busy one, both from a professional as well as a personal perspective, with lots of things going on and not much time to be deviantarting. I'm deeply sorry for all the projects I had to refuse, the ones I could not finish and the ones I'm still struggling to deal with, as well as for all the comments I could not respond to. Hopefully from now on things will go a little smoother and I'll have more time to dedicate to paleoart as well as art in general.

If you want to know what I'm working on right now, aside from a few projects which I shall reveal in due time (and if they come into fruition), I have something squirrely sitting in my unfinished paintings folder which I plan on finishing within the next week with the help of my new crappy-but-lovely-useful tablet, a few 3D models waiting for the time when I'll have the patience to take multiple shots of them, and I'm also trying to think of something to submit to the All Yesterdays contest that's going on (although I'm frankly out of ideas right now).

Apart from that, I hope you all had great holidays and merry paleoarting for this year!
Are you ready for some Pleistocene mammal-on-mammal action?

i.imgur.com/atZTH.png
I was looking for some place where I could set up a user-friendly gallery to put all my paleoart in and publicize it more easily, since DeviantArt is a great place for interacting with the community but not so much for exposing your work to a wider audience. Of course I have my blog, but it looks more like a kind of magazine than a photo gallery. So I decided to make a tumblr: paleoart.tumblr.com/

In it I've uploaded most of my paleoart and tagged the images such that you can find different subjects when searching by environment, time period, classification and continent. It makes it easy to quickly find out if I've already featured your favorite dinosaur, as well as look through my gallery within a bit of scientific context.

The main purpose of the tumblr is only to keep an updated gallery out of DA, since I don't like posting all of my pictures on facebook and I'm constantly too lazy to write something for my blog. But tumblr is also good because people can interact with me, either if you have a tumblr yourself or not. So feel free to follow, like, reblog and ask if you like :)
I usually try to avoid paleontological memes, such as sleeping Mei Long. But now that a second specimen was found in an almost identical sleeping position I think that, if I ever draw a picture of a Mei, it must be sleeping. I mean, if these fossils are anything to go by, they were probably sleeping all the time, right?

Those slothful dinosaurs.
I used to make a post on it as soon as I made a new picture, but procrastination and lack of inspiration ensued and now I have a delay of about three pictures. Gotta think of something to write about Linheraptor (which I now know it's supposed to be Tsaagan - that may be a good topic in itself), Ichthyosaurus and dead mosasaurs..

On another note, if anyone would like, feel free to add me on Facebook.
So I'm having this idea for an illustration of a certain dromaeosaurid theropod (cookies for whoever guesses which one) but first I need to figure out something: how far exactly could they fold their arms? Is a bird-like configuration, with the folded wings merged against the body outline (and the claws poking out) entirely correct? Or does some characteristic of dromaeosaur wrist or elbow prevented them of that pose? If so, how far could the arms fold? I've seen some reliable paleoartists favour the bird-like interpretation, but I've also seen some people claim that it was not possible.

Discuss.
I was just looking through my paleoart and decided to list all the animals I've featured in alphabetical order, for no good reason whatsoever. The result is: I noticed that I've covered almost all letters of the alphabet with the illustrated species, but a few remain unrepresented and so I'll try to reach the random goal of having the entire alphabet represented in extinct animals. Here are the missing letters, and possible candidates for appearing of future pictures:

F
Fruitadens? Falcarius? Perhaps Futalongnkosaurus?

K
Kentrosaurus seems like a good option. There's also Koreaceratops, Kosmoceratops, Kronosaurus, Koolasuchus and Khaan.

Q
[edit] Actually, I have done Quetzalcoatlus already. But perhaps Quinkana may show up around here.

W
This is also a hard one. Perhaps Woolungasaurus? Or I could have Wellnhoferia as not a synonym of Archaeopteryx..

X
Xiaotingia and Xiongguanlong are good possiblities.

Z
Zalmoxes? Zephyrosaurus (possibly involving Deinonychus as well)? Zuniceratops? Zhejiangopterus?

So that's it. I usually like to illustrate relatively well-known animals in terms of anatomy and ecology, so that's why I didn't mention any obscure genera or those known from very fragmentary remains; I don't like dwelving too much on speculative grounds (well, no more that the usual for paleontology anyways). You can expect some of these to appear soon in my gallery, although I won't promess to reach my goal very quickly. Also, feel free to make suggestions of course, or say which of those you want to see the most.
what

www.youtube.com/watch?v=Gza79d…

...what?
So, it turns out I've been tagged by vasix to one of those answering games almost three months ago, and only now have I seen it (sorry, vasix!). I've never answered such a quiz but well, why not? So here it goes:

1) Who has been your most loyal supporter?
Probably my mother. She tenderly supported me for nine months inside her womb and has still been doing a great job at it ever since. :)

2) Where is your choice of vacation?
It has been a long time since I last went out on vacation, but I usually like to go to different places than where I live (wich is a coastal city). So I basically enjoy a trip to the countryside or colder regions.

3) Who's your favorite artist/author/singer?
As much as I like art, I don't really have favourite artists at all, especially when it comes to illustrations. I like to absorb everything good that I find and create an unique mix in my head of the things that appeal me, instead of following the work of specific people (I hope that makes any sense). But if I have to choose, I'd mention such writers as J. R. R. Tolkien and George R. R. Martin for their amazing novels and ability to create whole worlds and universes, as well as brazilian Caio Fernando de Abreu, who wrote some of the most beautiful and relatable stories and phrases I've ever read. For graphical artist, I'd pick John Conway as being a very important figure in helping me formulate the style which ultimately became my own (as I've already said in other ocasions). Finally, a very important artist to me has been irish singer Damien Rice, whose music was pretty much the official soundtrack for my life throughout the last several years.

4)Are you exceptionally popular and if not what would you do for more popularity?
I've never been 'exceptionally' popular. I've always been shy, although I never had any real problems in making friends either. I'm normally a very kind and pleasant person towards other people and that helps me a lot. But I never had any more than three or four very close friends and that's quite enough to me. I don't think I would do anything to be more popular, that kind of thing is only worth when it comes naturally, IMO.

5) Do you keep to your new year resolutions?
I never do new year resolutions, in the sense of listing things I'd like to do for next year, because I usually know I won't be able to accomplish them. What I do each december 31st is think about how I've been acting and reacting throughout the last year, analyzing if I'm doing the right thing and thinking what goals I should keep pursuing for my life, and I think that works in some way.

6)Ever wanted to change yourself?
Many, many times. Who didn't? But I've been growing progressively satisfied with who I am, what are my limits and what I should or shouldn't change in order to become a better person (and not to appeal anyone, or fit in anyone else's requirements). I guess that's maturity knocking on my door.

7) Wish to switch bodies with someone else? If so, whom?
Permanently? Anyone, really. But I'd like to change bodies with some astronaut floating out in space, looking down on Earth or stepping on other space rocks, although I guess that's not really what the question means :P

8) Do you like vampires?
Hm.. Not really.

9) What is the political concept you hate the most?
The idea that the politicians are always wrong, the people are always being stepped on, and that there's nothing we can do but complain about that.

10) Have you ever been caught for speeding?
I don't drive yet, but I believe I wouldn't try such things. Not amongst the chaotic traffic and irresponsible drivers around here.

So, I won't tag anyone really but I will leave another ten questions for anyone out there who'd like to answer them:

1. If you could choose, where would you like to live right now?
2. What is the most simple thing that you really enjoy doing?
3. What does happiness tastes like to you?
4. What does it smells like?
5. If you could go anywhere in time and space, be it past or future, on Earth or somewhere else, where and when would you go?
6. What would you do if you had basically unlimited money?
7. What mistery would you like to solve once and for all?
8. What do you imagine yourself doing 20 years from now?
9. If you could make one big wish, what would it be?
10. What did you thought of my questions? :D


Anyone can feel free to answer these, and if anybody else tagged me and I didn't respond, sorry! I probably haven't seen it.
thecasualpaleoartist.blogspot.…

Some strange shrimp are coming to the Aquarium...
Just asking because there are so many interesting youtube channels based around vlogs that (informally and mass-appealingly) talk about general physics, astronomy, chemistry etc. and I thought palaeontology in general has so much potential for something similar.

For example, Minute Physics has many videos in which a charismatic narrator talks about such things as time and space, gravity, paralell universes and quantum mechanics in a simple way, using doodles and analogies to explain otherwise complex topics, while CGPGrey brings general subjects like historical misconceptions and the difference between United Kingdom and Great Britain in a humourous way.

So, if anyone knows such a channel, please recommend it because I greatly enjoy those kinds of vlog. If not, I'm sure some of you "casual experts" out there would be more than fit for this role, bringing paleontologic news, the latest discoveries, featuring good paleoart pictures and explaining how primaries attached to the second finger of dromaeosaurs via cute doodles (Albertonykus and Tomozaurus, I'm looking at you guys! :)). I'm sure that would bring a lot of attention, not only among the usual dino-lover community but to the general public if done correctly!
Bow down to Sciurumimus, the first confirmedly feathered megalosauroid.
Prepareth thyself to the new age of fluffy non-coelurosaur tetanurans!

EDIT: Andrea Cau discussed the publication of Sciurumimus at Theropoda. He wisely states that Otto may not actually be a megalosauroid, but a very basal coelurosaur which shares morphological characteristics with megalosaurids due to being a basal tetanuran. As many of us expected, this discovery shall still be hotly debated. But I, for one, see it as a milestone in any case: Even if Sciurumimus is actually a very basal coelurosaur and not a megalosaurid, it's anatomical similarity to said clade suggests that protofeathers may indeed have been present in at least all tetanurans, regardless of it's specific position in the dinosaur family tree.