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Llallawavis by Zimices Llallawavis by Zimices
Llallawavis scagliai, a recently published "terror bird" (Phorusrhacidae), known from a virtually complete skeleton: www.boards.ie/vbulletin/showth… that includes even remains of the trachea and the inner ear bones. This species, of only 1.2 meter tall and about 18 kg in weight, is between the latest terror birds known*, being from the Pliocene (3 million years ago) of the Buenos Aires Province, Argentina.

*Apart of Titanis that reached the Early Pleistocene, exists some fragmentary remains of the Late Pleistocene of Uruguay, but its identity as terror bird is considered as dubious.
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Llallawavis scagliai, un "ave del terror" (Phorusrhacidae) dada a conocer recientemente, es conocida de un esqueleto virtualmente completo: www.boards.ie/vbulletin/showth… que incluye hasta restos de la tráquea y de los huesos del oído. Esta especie, de solo 1.2 metros de alto y unos 18 kg de peso, se encuentra entre las últimas aves del terror conocidas*, datando del Plioceno (hace 3 millones de años) de la provincia de Buenos Aires, Argentina.

*Aparte de Titanis que alcanza el Pleistoceno inferior, existen algunos restos fragmentarios del Pleistoceno superior de Uruguay, pero su identidad como aves del terror se considera dudosa.

References/Referencias

Federico J. Degrange , Claudia P. Tambussi , Matías L. Taglioretti , Alejandro Dondas , Fernando Scaglia
Journal of Vertebrate Paleontology   (is free access!)

**Note: This image is also in WikiCommons, under the license CreativeCommons 3.0, that allows a free use.
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:iconelsqiubbonator:
ElSqiubbonator Featured By Owner Nov 6, 2015
Terror birds had raptor claws?
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:iconzimices:
Zimices Featured By Owner Nov 6, 2015  Hobbyist
Well, their modern relatives, the seriemas have also "raptor claws": thumb7.shutterstock.com/displa… and apparently at least some terror birds shares this condition. I found a thesis - in Spanish - that compares the second toe of this birds with the dromaeosaurid dinosaurs, and even says  "The long and curved claws that they shares with the modern cariamids suggests some kind of anatomical mechanism that allows to these big cursorial birds bear the claws raised and avoid the wearing by abrasion or even fracture" (Jones, 2010)
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:iconelsqiubbonator:
ElSqiubbonator Featured By Owner Nov 6, 2015
Neat! Do they use them the same way dromaeosaurus used theirs?
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:iconzimices:
Zimices Featured By Owner Nov 6, 2015  Hobbyist
Well, in the same thesis is said that these claws were more specialized in dromaeosaurids to cut, in terror birds (like another predator birds) its function was essentially retain the preys. Also, the legs of these birds was very robust, maybe to hit their preys. 
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:icongrisador:
grisador Featured By Owner Sep 12, 2015
Nice :nod:
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:iconzimices:
Zimices Featured By Owner Sep 13, 2015  Hobbyist
Thanks :)
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:icongrisador:
grisador Featured By Owner Sep 14, 2015
You are welcome :)
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:iconwtoosey:
WToosey Featured By Owner Jul 6, 2015  Student General Artist
This is a very good reconstruction of Llallawavis.:) (Smile)  I love the texture of the feathers and the colours that you've chosen. One of the greatest paleontological discoveries of 2015. So Llallawavis is quite small because of the decline of phorusrhachid diversity?
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:iconzimices:
Zimices Featured By Owner Jul 7, 2015  Hobbyist
Thanks, although there are some better reconstructions in the web, as you say is one of the best paleontological discoveries in this year, specially respect to Cenozoic birds. ;) I don't known if the size alone is related to the decline, but certainly in the times of this bird it was less species than in previous times (that frequently had different sizes, and surely different ecologies).
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:iconelectreel:
electreel Featured By Owner May 4, 2015
Buena ilustración, y de nuevo buen trabajo con la textura :) Sin duda un descubrimiento de gran envergadura, aunque el ave en sí no lo sea :D
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:iconzimices:
Zimices Featured By Owner May 4, 2015  Hobbyist
Gracias, y eso que es una textura muy simple, le tengo cierto pavor a la complejidad del plumaje de algunas aves. También entre los dinosaurios descubiertos este año, esta ave está entre las más notables, es un fósil bellísimo y lleno de información, a la vez que testimonia un poco la decadencia de su grupo...
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:iconelectreel:
electreel Featured By Owner May 4, 2015
Solo he tenido tiempo de echarle un vistazo por encima a unos cuantos artículos referentes ¿Está relacionado su pequeño tamaño con el declive de los forusrácidos?
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:iconzimices:
Zimices Featured By Owner Edited May 4, 2015  Hobbyist
Bueno sí, pero más que solo por su tamaño es que hay un declive claro en diversidad de especies... antes de esta especie aun rondaba algunas especies grandes, Devincenzia pozii y Andalgalornis steulleti, pero al avanzar en el tiempo nos encontramos es con el pequeño Llallawavis, cuyos contemporáneos son Procariama y Mesembriornis, también pequeños y la única forma grande es Titanis, que estaba a más de medio continente de distancia (y bueno, ciertos supuestos fósiles de Venezuela) . En el Mioceno en cambio, había mayor variedad de especies pequeñas, medianas y grandes en Suramérica. También es de notar que supuestamente hay fósiles del Pleistoceno, pero son cuestionados y en todo caso, si son reales, son de especies pequeñas.
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:iconvasix:
vasix Featured By Owner May 1, 2015  Hobbyist Digital Artist
Lalalalalalawavis
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:iconzimices:
Zimices Featured By Owner May 2, 2015  Hobbyist
Hehehe :D
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:iconvasix:
vasix Featured By Owner May 2, 2015  Hobbyist Digital Artist
I wouldn't be saying that if it was coming towards me at full speed, but still...
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:iconijreid:
ijreid Featured By Owner Apr 3, 2015  Hobbyist Digital Artist
Fantastic work :D
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Thanks a lot!
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:iconucumari:
ucumari Featured By Owner Apr 3, 2015
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Sí, creo que le apuntaba a un modelo parecido... una especie pequeña y con el pico alargado. Claro que comparándolas, me impresiona lo bien que él domina las luces y sombras con esas plumas. :)
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:iconlevibernardo13:
LeviBernardo13 Featured By Owner Apr 3, 2015  Student Traditional Artist
Ecxelente muy buena, me gusta la coloracion y las sombras y luces
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Muchas gracias, me alegra que te guste :)
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:iconmalevouvenator:
malevouvenator Featured By Owner Apr 3, 2015
Se alegra que haya restos bastante completos, de Titanis lei que apenas hay esqueletos de estos animales y se han ido completando con los restos de otras aves del terror.
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Muy cierto, Titanis es conocido sobre todo de fragmentos de huesos del ala y las patas... la otra que está más o menos completa es Paraphysornis de Brasil. Y por ejemplo, con la información revelada dicen que esta ave tenían un oído adaptado a las bajas frecuencias.
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:iconmalevouvenator:
malevouvenator Featured By Owner Apr 3, 2015
Asi que tenian algo parecido al casuario no?
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
¿Por lo del sonido? me parece recordar que habían sugerido que como lso picos de estas aves son huecos, servían para hacer llamados...
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:iconmalevouvenator:
malevouvenator Featured By Owner Apr 5, 2015
Sip, se que el casuario tiene el sonido con frecuencia mas baja de todas las aves y ademas es lo mas cercano en ruidos que tenemos en dinosaurios.
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:iconchrismasna:
ChrisMasna Featured By Owner Apr 3, 2015  Professional Digital Artist
Lo mejor que ha sido hallado en mi ciudad, lejos (cruzo los dedos por que haya mas) :D Aún no he ido a verla, pero parece ser que efectivamente está realmente bien conservada.
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Ojalá haya más restos... y a lo mejor hasta con más información, debe ser un privilegio ver a tu plumífero paisano :)
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:iconisabella-artist:
isabella-artist Featured By Owner Apr 3, 2015  Professional General Artist
Beautiful :clap:
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Thanks a lot :)
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:icondontknowwhattodraw94:
Dontknowwhattodraw94 Featured By Owner Apr 3, 2015  Hobbyist Traditional Artist
I hadn't heard about this, awesome discovery :D

Why is their doubt about Titanis being a terror bird?
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Yes, is a pretty well preserved prehistoric bird! (which is enough rare).
No, I see that I wrote that part in a wrong way: Titanis is definitively a terror bird, I meant that it is the only Pleistocene species aside of the dubious remains of Uruguay.
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:icondontknowwhattodraw94:
Dontknowwhattodraw94 Featured By Owner Apr 3, 2015  Hobbyist Traditional Artist
Ah okay, is it true that it could've lived up to the Late Pleistocene where it interacted with early humans or is that wrong?
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:iconzimices:
Zimices Featured By Owner Apr 3, 2015  Hobbyist
Titanis? no, its more recent remains are in the Pliocene/Pleistocene boundary, 2.5 million years ago... too early.
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:icondontknowwhattodraw94:
Dontknowwhattodraw94 Featured By Owner Apr 3, 2015  Hobbyist Traditional Artist
Ah okay, than I remembered something wrong.
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:iconzimices:
Zimices Featured By Owner Edited Apr 3, 2015  Hobbyist
Well, some time ago it was believed that Titanis lived in the Late Pleistocene, but the recent analysis with isotopes showed that was much older.
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:icondontknowwhattodraw94:
Dontknowwhattodraw94 Featured By Owner Apr 3, 2015  Hobbyist Traditional Artist
Then it must've been that was I was thinking about. Thanks for explaining that :)
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:icondragonthunders:
Dragonthunders Featured By Owner Apr 2, 2015  Hobbyist Artist
Genial reconstruccion :)
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:iconzimices:
Zimices Featured By Owner Apr 2, 2015  Hobbyist
Muchas gracias :)
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:iconking-edmarka:
King-Edmarka Featured By Owner Apr 2, 2015  Hobbyist General Artist
Great terror bird my friend!  And thanks for sharing the new information!  :)
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:iconzimices:
Zimices Featured By Owner Apr 2, 2015  Hobbyist
Thanks a lot! is my pleasure talk about this animals! :)
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