února 25, 2009

Teropodní zuby ze spodní křídy Maroka a jejich paleogeografické implikace

Nová studie paleontologů Fabiena Knolla a José Ignacia Ruiz-Omeñacy popisuje teropodní zuby z nejspodnější křídy (stupeň berrias) marocké lokality Anoual. Tyto fosilie jsou důležité, protože pochází z jedné z velmi mála lokalit tohoto stáří na celém světě a dokonce jediné na území Gondwany. Tvar teropodích zubů pocházejících z Anoualu je různorodý a patřil tedy různým sub-kladům Theropoda. Většina materiálů zřejmě náleží kladu Dromaeosauridae - pokud ano, šlo by podle abstraktu o velmi raný výskyt zástupců kladu (přestože jsou to právě nálezy zubů, které naznačují, že klad Dromaeosauridae mohl vzniknout již ve střední juře). Paleogeografická poloha Anoualu by mohla poskytnout informace o rozptýleních, ke kterým u suchozemských faun došlo v průběhu druhohor. Zdokumentován je vliv Laurasie v podobě přítomnosti kladu Velociraptorinae, který vznikl právě na zmíněném severním superkontinentu. Teropodní fauna z Anoual celkově nasvědčuje, že mezi Laurasií a Gondwanou existovalo spojení, táhnoucí se napříč oceánem Tethys. Toto spojení dovolovalo suchozemské faunální výměny během svrchní jury - studie se zmiňuje i o spojení v období spodní křídy, kterým se podrobněji zabývala studie José Canuda, o níž jsem na blog psal včera. Fosilní záznam Anoualu také dokládá, že zde žili teropodi velmi malých tělesných rozměrů. Podle dostupného materiálu bohužel nelze zjistit, zda je malá velikost exemplářů fylogenetická nebo ontogenetická.



Abstrakt studie:

Knoll, F., and Ruiz-Omeñaca, J.I. 2009. Theropod teeth from the basalmost Cretaceous of Anoual (Morocco) and their palaeobiogeographical significance. Geological Magazine. doi: 10.1017/S0016756809005950.

The theropod teeth from the Berriasian (Early Cretaceous) site of Anoual (N Morocco) are described. The assemblage is important in that it comes from one of the very few dinosaur sites of this age globally and the only one for the whole of Gondwana. The theropod teeth from Anoual are morphologically diverse. Most of the material possibly belongs to the clade Dromaeosauridae, which would be an early occurrence for this taxon. The palaeogeographic position of Anoual enables it to provide data on the dispersal events that affected terrestrial faunas during Mesozoic times. A Laurasian influence is evidenced by the presence of Velociraptorinae and, on the whole, the theropod fauna from Anoual provides support for the existence of a trans-Tethyan passage allowing terrestrial faunal interchanges during Late Jurassic and/or earliest Cretaceous times. Additionally, Anoual records the existence of diminutive theropods. However, it cannot yet be determined whether the small size of the specimens is genetic or ontogenetic.

58 komentářů:

  1. I have been browsing on-line greater than three hours
    as of late, yet I never discovered any attention-

    grabbing article like yours. It is pretty value sufficient
    for me. In my

    opinion, if all webmasters and bloggers made

    good content as you probably did, the web shall be a lot more helpful than ever before.
    Also visit my website : golfspain.us

  2. Good day! Do you know if they make any plugins to

    against hackers? I'm kinda paranoid about losing everything I've worked hard on.
    Any tips?
    Also visit my web blog ; wiki.harpersglobe.com

  3. There are some fascinating deadlines on this article however I don’t know if I
    see all of them heart to heart. There may be some validity however I will take
    maintain opinion till I look into it

    further. Good article , thanks and we would like extra!

    Added to FeedBurner as properly
    Here is my web page ; http://forum.arzeshiha.ir

  4. I know this if off topic but I'm looking into starting my own weblog and was curious what all is

    required to get setup? I'm assuming having a blog like
    yours would cost a pretty penny? I'm not very

    internet savvy so I'm not 100% positive. Any tips or advice

    would be greatly appreciated. Thank you
    My web-site - http://weibo.supinfochina.com/index.php/andrew88

  5. I would like to thank you for the efforts you have put in writing this site.
    I'm hoping the same high-grade website post from you in the upcoming also.

    Actually your creative writing skills has inspired me to get my own web site

    now. Actually the blogging is spreading its wings fast. Your write up is a great

    example of it.
    Take a look at my web page : www.hvacsimulator.net

  6. I like the valuable info you provide for your

    articles. I’ll bookmark your weblog and take a look at again here

    regularly. I am fairly sure

    I’ll be informed many new stuff proper here!

    Good luck for the next!
    Look into my blog - Mouse Click The up coming website page

  7. What’s Happening i am new to this, I stumbled upon this
    I have found It absolutely

    useful and it has aided me out loads. I hope to contribute
    & help other users like its helped me. Good job.
    Feel free to visit my blog :: mouse click the up coming website page

  8. I definitely wanted to post a brief comment in order to

    say thanks to you for these

    awesome tips you are writing at this website.

    My long internet lookup has at the end been paid with
    awesome know-how to talk about with my family and friends.
    I 'd tell you that many of us website visitors are undeniably fortunate to be in a useful

    community with so many perfect people with insightful tricks. I feel

    very much lucky to

    have discovered the webpages and look forward to so many more pleasurable

    times reading here. Thanks once again for

    Also visit my web site :: Unlimited Conference Calls

  9. Keep functioning ,fantastic job!
    My web page > www.groovyfrogforums.com

  10. Hello there, just became alert to your blog through Google,
    and found that it's truly

    informative. I’m gonna watch out for brussels. I’ll be grateful if you continue

    this in future. A lot of people will be benefited from your writing. Cheers!
    My weblog - ezinearticles.gr

  11. I'm often to blogging and i actually respect your content. The article has really peaks my interest. I'm going to bookmark your site and maintain checking for new information.

    My homepage ... beatzreport.blogspot.ru
    Feel free to surf my web-site payday loans in shelby nc

  12. Valuable information. Lucky me I found your website by accident, and
    I am shocked why this

    accident didn't happened earlier! I bookmarked it.

    My blog post; http://www.holyshitstrumentals.com/
    my webpage - property in Elche for sale

  13. Heya i am for the primary time here. I came across this board and I to
    find It

    really helpful & it helped me out much. I hope to give one thing back and aid others such as
    you helped me.

    my blog ... bookmarking.click2articles.com
    My website: home made solar panel

  14. It’s actually a great and useful piece of information.

    I’m glad that you simply shared this useful information with
    us. Please keep

    us informed like this. Thanks for sharing.

    Also visit my website ... www.daebaksubs.com
    Stop by my blog post car hire villamartin spain

  15. It is really a great and helpful piece of information. I am glad that you shared

    helpful information with us. Please keep us informed like this.

    Thank you for


    Feel free to surf to my web-site http://bookmarks.wedia.gr/
    my web site - Costa Blanca weather November

  16. Hello there! Do you know if they make any plugins to safeguard

    against hackers? I'm kinda paranoid about losing everything I've
    worked hard on. Any suggestions?

    Have a look at my blog - christyscuties.blogspot.com
    My site :: travel hair brush

  17. whoah this blog is wonderful i love reading your posts. Keep
    up the

    good work! You know, a lot of people are hunting around for this info, you
    can aid them greatly.

    Here is my webpage - http://musicwiki.mu.funpic.de/
    Have a look at my blog post : la marina spain forum Puerto Rico

  18. Hello.This post was extremely motivating, especially

    since I was investigating for thoughts on this
    subject last

    My web site :: megalodonhunters.blogspot.co.uk

  19. The subsequent time I learn a weblog, I hope that it doesnt disappoint me as
    much as this one. I imply, I do know it was my option to read, however

    really thought youd have one thing interesting to say.
    All I

    hear is a bunch of whining about one thing that you
    may repair when you werent too busy searching for attention.
    Also visit my web site www.mistake.clubnet.pl

  20. Pretty nice post. I just stumbled upon your blog and wished to say that I've

    truly enjoyed surfing around your blog posts. In any case I will be subscribing to your

    feed and I hope you write again very soon!
    Here is my homepage :: www.thestreetgallery.com

  21. Hi i am kavin, its my first occasion to commenting anywhere, when i read this article i
    thought i could also make comment due to this good article.

    Also visit my site :: christian louboutin outlet

  22. This site is known as a stroll-

    via for the entire information you

    wished about this and didn’t know who to ask.
    Glimpse right here, and you’ll positively uncover it.

    There may be noticeably a bundle to find out about this. I assume you made

    sure good factors in options also.
    My web site - http://elfuetaso.blogspot.com/2011/05/lebron-anota-35-y-heat-acarician-boleto.html

  23. There is clearly a lot to

    realize about this. I believe you made certain good points in

    features also.
    Also visit my web blog https://normaslogic.uni.lu

  24. Hi! Someone in my Myspace group shared this website with us so I

    came to give it a look. I'm definitely loving the information. I'm

    bookmarking and will be tweeting this to my followers!
    Wonderful blog and brilliant

    design and style.
    Look into my homepage - kannikar.com

  25. Hey just wanted to give you a quick heads up. The
    text in your post seem to be running off the screen in
    Firefox. I'm not sure if this is a

    formatting issue or something to do with internet browser compatibility but I thought I'd post to let you know.
    The design and style look great though! Hope you get

    the issue fixed soon. Many thanks
    Also visit my page - http://new-york-city.italiangreyhound.us/

  26. Excellent site you have here.. It's difficult to find excellent writing like yours these days. I honestly appreciate individuals like you! Take care!!

    Review my page ... rolexスーパーコピー

  27. If you want to get much from this piece of writing then you have to apply these strategies to your won weblog.

    My page ロレックス偽物

  28. Hey would you mind sharing which blog platform you're using? I'm planning to
    start my own blog soon but I'm having a difficult time making a decision between BlogEngine/Wordpress/B2evolution and Drupal. The reason I ask is because your design seems different then most blogs and I'm looking for
    something completely unique.
    P.S My apologies for getting off-topic but I had to ask!

    my page: 激安プラダ バッグ

  29. I'm curious to find out what blog system you happen to be using? I'm having some minor
    security problems with my latest website and I'd like to find something more secure. Do you have any recommendations?
    Here is my website - tiamowrydaily.com

  30. Can I just say what a aid to search out somebody who

    actually is aware of what theyre talking about on the internet.
    You positively know the right way to deliver a problem to

    light and make it important. Extra folks have to read this

    and understand this side of the story. I cant imagine youre no

    common because you undoubtedly have the gift.

    Visit my weblog :: http://starsofasia.com/blog/view/11255/travel-to-spain-spain-is-a-country-with-ancient-culture-and-favorable-climatic-conditions

  31. I simply could not go away your web site before suggesting that

    I actually loved the standard information an individual

    provide for your guests? Is going to be again

    regularly in order to inspect new posts

    My web site :: www.businessdirectory.bz

  32. Greetings! This is my 1st comment here so I just

    wanted to give a quick shout out and say I really enjoy reading your articles.
    Can you recommend any other blogs/websites/forums
    that deal with the same

    topics? Thanks!

    My web blog :: biassist.ro

  33. Hi there! I know this is kind of off topic

    but I was wondering if you knew where I could locate a captcha plugin for my comment
    form? I'm using the same

    blog platform as yours and I'm having difficulty finding one?
    Thanks a lot!

    My webpage: http://renagademedia.com

  34. I was wondering if you ever thought of changing the page layout of your website?

    Its very well written; I love what youve got to
    say. But maybe you could a little more in the way of content so people could connect with it better.
    Youve got an awful lot of text for only having one or two images.

    Maybe you could space it out better?

    Also visit my website - ralph lauren outlet

  35. It's a shame you don't have a donate button! I'd most certainly donate to this fantastic blog! I suppose for now i'll settle for bookmarking and adding your RSS
    feed to my Google account. I look forward to brand new updates and will share
    this website with my Facebook group. Chat soon!

    Feel free to surf to my web site ... ralph lauren outlet

  36. Good web site you've got here.. It's difficult to find high quality writing like yours these days.

    I honestly appreciate individuals like you! Take care!!

    Check out my blog; cheap air max 2012

  37. Cool blog! Is your theme custom made or did you download it from somewhere?

    A design like yours with a few simple tweeks would really make my blog stand out.
    Please let me know where you got your design. Many thanks

    Feel free to surf to my web-site :: cheap nike air max 2012

  38. I savour, cause I found just what I used to be having
    a look for. You've ended my four day long hunt! God Bless you man. Have a nice day. Bye

    Have a look at my webpage cheap ralph lauren

  39. Oh my goodness! Impressive article dude! Many thanks,
    However I am having issues with your RSS. I don't know the reason why I cannot subscribe to it. Is there anybody else getting identical RSS problems? Anyone who knows the solution can you kindly respond? Thanks!!

    Feel free to surf to my blog ... cheap ralph lauren polo

  40. Saved as a favorite, I really like your website!

    Here is my weblog; cheap ralph lauren polo

  41. There is a lot surprise this kind of simply just released sorts are
    listed below: uggs estimates boots and shoes mayfair footwear girls java Highkoo Microsof
    corporation 5450 fight-style exceptional. Buy cheap UGG boots visit: When looking at purchasing due to the fact, world-wide-web retailers offer them with lower prices compared to those from
    local sellers. Nevertheless, with super delicate ease and convenience, increased
    desire, and wintertime season approaching, it is possible
    to still discover some great provides.

    my web-site; prada トート

  42. There are various online auction sites which you can check
    out every now and then if you wanted to obtain the best
    prices on your ugg boot. Buy cheap UGG boots visit: When you are looking at purchasing these boots,
    world-wide-web retailers offer them with lower prices than these from local sellers.

    Nevertheless, with super delicate ease and convenience, increased desire,
    and winter weather season approaching, you can still discover some good provides.

    Stop by my page :: ルイヴィトン 財布

  43. Recommendations about amazon online can lead to are able to coming from final decision in order
    to purchase the appropriate coffeemaker system for your
    family. Everyone this realize does sound,
    whizzes in the system, along with other biological quick onset flashes.
    Bosch Tassimo Single serving A drink Brewers
    light red coffee brewer is just totally auto, there's no need to in addition approach the washer. My father could be include hot chocolate and low in unison (similar to their mocha) input it on the inside thermos, whereas spend folks family over to opt glimpse at fairy lights. Types perhaps may be an exceedingly celebrated study of great certainly one of fisherman more than a checking!

    Here is my webpage - coffee pour over Ratio

  44. Due to different styles and colors of UGG boots and UGG shoes, it
    is possible to match your mood along with your clothes.
    5L models in the "Iridescence" allowance box, despite well-designed counterfeit bright Jiuzun base, so the
    cut apparent just appropriate bright reflects "Iridescence" the cradle of the neon, for your account of Hennessy cheap uggs
    Salon goes on the a large amount of admirable style. And reproductions could possibly appearance just as terrific.

    My website ... prada

  45. You will plan to think of your finances as well as what elements
    you like. This is a great positive aspect everyone who is
    making several forms of drinks, usually or possibly even party wine
    bottles. Others believed so it you shouldn't work prudently to start with. Totally an absolute HU 450, you will choose to erect it on faucet water much better currently using. In addition to the electric / battery modifications, many article director ies performing work vehicles can be found.

    Feel free to surf to my web-site; blender reviews

  46. Traditional food processor or blender to become a common fitting regarding living rooms, on the
    contrary there's a lot of additional fashionable day alternatives. You'll find it the what kind of analyze just just how much
    many advantages being removed within cider at a watermelon
    and even more fresh vegetables put in place. Buying making juice workout machine probably won't conscious of monetarily practicable. Below is a little overview of money only thirstier . together with and this machine tasty recipes.

    Feel free to visit my website: juicing beets in blender

  47. Despite the fact harvesting, actually is watered at all times to be
    specific carbs and glucose proportionate amount as low as possible.
    Good to those who're searching juicer that makes class beverage. This kind of managed 100 clones monthly to suit a very long time later.

    my blog post :: blender online magazine

  48. Quite a number of maybe even compliment my cup of coffee holds of
    anyone's portable. Filtration system are really is a folk who has extraordinarily experienced with taking top-of-the-line appliances. It is dependent plenty on the things you will be making juice and in what way going regarding it. Pretty much the whole thing you desire to maintain your blending whilst mixing up are executed equally utterly while you possibly!

    Also visit my web page - tomato juicers for sale

  49. Regarding arm rest (that are classified as connected to the continuous motor construction) manage in place in addition to the fasten decreased all chapters of ones cowling simply securing the main revert anchoring screws after nearly
    every prepare. It appears that lots of people today commonly
    be particularly noticed somewhere between picking out significant associated with huge juice machines:
    Breville 800JEXL as well as , Breville BJE510XL. Your boyfriend taken their Waring Vita mixer at a later moment that particular twelve month period for the International
    Palace Prove to at Denver. Allowing important sound additionally discover that this situation juice extractor is quite considerable, who has brushed stainless-steel enclosure,
    ebony cut down and glossy elective broken parts.

    Also visit my web site Best Blender

  50. Ripe pears, mild berry pure, and then for any pretty ripe and comfy profits is likely come up mainly because slush
    but not hummingbird nectar. Thinking about Obagi Food processor
    or blender is meant to maximize skin and even remove as well as skin
    marks, Hydroquinone may be most important component that's a good quality stuff due to completing this task function. Yet good list, L'Equip, behaves
    as a citrus machine now with top-notch those too
    drawn out 17 year ensure. Set aside this 15 cost statement make the idea planned
    to attend classes your bank account, engaging in just seconds away .
    scaled-down some of it for berry while vegetables.
    The wonderful thing about food intake rattles
    in addition , shakes may be the fact with the right kit try not to Ninja Household Strategy 1100 blender
    or food processor they are easy to create.

    Here is my web-site; blender textures free

  51. This lets you earn awesome fruit smoothies and as a consequence results
    smoothies as well as minutes, extinguishing the misunderstanding among each of those.
    These suggestions usually are too often the aid and should
    be a little more utilized in order to guarantee drawn out and furthermore problem-free standby time with the PJ
    peice of workout equipment. Unquestionably the pulp are
    useful to commit salsa additionally soups.

    Visit my web site :: blender reviews ()

  52. For the reason that foods are fully cooked at permeable clay-based through least possible juices few introduced unwanted fat, get good at cooks by
    cooks food see this historical kitchenware mode preferably procedure for the baking healthful.
    Among the list of a lot of welding accessory
    accessible to welders, the particular welding rods furnace , generally a electrode tandoor, sexxy jar or possibly welding electrode stabilizing
    model 2 . can be rubbed coupled with refurbished techniques so to cater
    for welders of which be employed a number of other bothersome periods.

    Look burning heat specifications from a timber
    you employ if you become a kind, to be definitely certain could fight heat range of as much as 325 degrees Fahrenheit,
    which is the establishing conditions of the classic polystyrene sleep sheet.
    Cross punch more compounds every.

    My webpage ... how does a boat toaster work

  53. It's a pity you don't have a donate button! I'd most certainly donate to this fantastic blog! I guess for now i'll settle for bookmarking and adding your RSS feed to my Google account.
    I look forward to new updates and will share this site with my Facebook
    group. Talk soon!

    my blog post: Oakley Sunglasses Cheap

  54. Wow! Ҭhiѕ blog looks еxactly like my old one! Іt's
    on a totally different sսbject but it has pгetty much the same page layout and design. Great choice
    of colors!

    Also visіt my webpage ... Chevy trucks forum

  55. Yesterday, while I was at work, my cousin stole my iPad and tested to see if
    it can survive a thirty foot drop, just so she can be a youtube sensation. My apple
    ipad is now destroyed and she has 83 views. I know this is completely off topic but I had to share it with

    Visit my web site ::

  56. Here you can sell and buy both new and used products.
    This website is perfect for selling just about anything at all.
    More at via link


Sem můžete napsat svůj komentář ke článku.