Main Brijun island tracks

Otok Veli Brijun (Brion) 2012. Mjerim veličinu otiska stopala velikog teropoda, koji je ostavio svoj oblik stopala (left pes) uključujući i metatarzalni dio, što je dosta rijetko.Iscrtao sam oblik crvenom linijom da se bolje vidi forma.  Otisak vrha srednjeg prsta (#3) nedostaje.

Good old Triceratops

Triceratops is certainly among the most popular dinosaurs. Here is my restoration from 1990/91:

... and here is my latest restoration (January 2015) of a juvenile specimen:

One of the ceratopsians with very distinguished bone frill was Pentaceratops (my restoration from 1990)

 Torosaurus with young (2001). There are some theories claiming that Torosaurus is in fact an ontogeny stage of Triceratops.

The main predator feeding on Triceratops was Tyrannosaurus rex (1993)

Tempus fugit

Time flies. It even seems, that time is accelerating.

Here is some stuff from my old websites from the previous century... I think it was from the year 1997 until 2000.

 Me and my late assistant Koki. Both of us got seriously ill soon after this photograph was taken. Koki died while I got another chance to live.

 Pachycephalosaurus

 Erlikosaurus

 Xenosmilus

Suchomimus

and Homotherium

 

Monster iguanodontoids

  

Pula, Istria, Croatia, late Albian (mid-Cretaceous)

About a 100 million years ago, the beaches near the city of Pula (which itself has about 3000 years long history) were sandy and muddy and the sea was shallow. The rudist clams formed some sort of rudist reefs not far from the coastal line. The stromatolites colonies were sticking out of the water, while the large sturgeon or/and guitar fish probed the mud for food swimming the shoals. Small, large and huge dinosaurs, crocks, monitor lizards and pterosaurs left their footprints in the wet sand and sticky mud.

  Many years later, the old beaches turned into multilayer limestone rock, looking like some sort of a giant book. The ancient archives with the notes of the the life long gone,waiting for the sea to uncover them and somebody interested and inquisitive to read the fossil "hieroglyphs".

Here are the pes footprints of the immensely large iguanodontoid. I am standing on the convex  left pes with infilling, while photographing the concave right pes (footprint) in an oblique view. My yellow outline marks the impression. The displacement rim is quite nicely visible, as well as the mud suction traces along the mid line. Each of the prints measure unbelievable 135-145 cm in length. I don't think there was a larger iguanodontoid print discovered anywhere in the world, so far. Yet, these prints are situated on one of the most popular and crowded beaches near Pula. I've stepped over these prints so many times myself over the years without noticing them. Why? Simply because they were so enormous, that they were too difficult to spot and figure out as once belonging to a living, breathing animal. The ornitischian who left them in the wet sand must have measured at least 18 to 20 meters in length! (See the comparative sizes in my banner)

My old online article from BDW (1999)

   

Mesozoic Mosaic pg #2

Illustration of Sinornithosaurus - by Beri (digital), Copyright © 1999-2004 BERI Commissioned and first published in online by: abcnews.go.com/sections/science Sep 1999

Sinornithosaurus - a feathery dromaeosaurid Sinornithosaurus millenii Xu, Wang & Wu, 1999 References: http://abcnews.go.com/sections/scitech (dead link) HWANG, S.H., M.A. NORELL, JI Q., and GAO K. 2002. New Specimens of Microraptor zhaoianus (Theropoda: Dromaeosauridae) from Northeastern China. American Museum Novitates 3381: 1–44. ------------- Sinornithosaurus millenii, XING XU, XIAO-LIN WANG & XIAO-CHUN WU, 1999   Holotype. IVPP (Institute of Vertebrate Paleontology and Paleoanthropology) V12811 .    Locality and horizon. Sihetun, western Liaoning, China. Layer 6, lower (Chaomidianzi) Yixian Formation, Jehol Group; probably Early Cretaceous.       Didn't paleoartists (led by McLoughlyn, Baker and Paul) predicted it would be discovered that dromaeosaurs were covered with some sort of hairy proto-feathers, a deduction based upon the close anatomical resemblance of dromaeosaurs and birds?    Well, the long awaited hard evidence was finally presented in today's issue of Nature magazine (16 Sept.,1999). Spielberg's "Jurassic Park" naked, scaly "raptors" (even this term was scientifically wrong - because it refers to the extant bird of prey genus) are doomed to be tossed in the rich archives of dinosaur misinterpretations. There is little doubt now that Deinonychus, depicted in a Hollywood manner in the movie, was too "dressed" in the feathers.   Although considered to be well known by everybody, especially after dinosaur movie planetary success, dromaeosauridae were known only form a few mainly incomplete fossils (the exceptions were some fine Mongolian specimens), so a lot of things about them were not entirely clear. Chinese paleontologists have recently found and described a fine dromaeosaurid fossil in Yixian Formation of China (Locality and horizon. Sihetun, western Liaoning, China. Layer 6, lower (Chaomidianzi) Yixian Formation, Jehol Group; probably Early Cretaceous - dated to about 125 million years ago), with a filamentous integument (a downy coat). The new feathered sensation from China was coined Sinornithosaurus millenii. The genus name is derived from Sino + Ornitho + Saurus, for " a bird-like dinosaur from China;" while the species name comes from "Millennium," in reference to the specimen's discovery near the end of the twentieth century.   The animal was rather small even for a dromaeosaurid. Its skull was about 13 cm (5,1") long, which gives the derived, approximate total length (the tail in dromaeosaurs was very long) of this dinosaur of about 110cm (43,3"). The "downy coat" was made up of filaments which were up to 4 cm (1.6") long, those filamentous structures near the cranium (skull) seem to be shorter than the postcranial fibers.  Further preparation of the specimen could reveal more fibers.  The insulation looks more like the fur than the modern birds' feathers, which look kind of furry in the picture (not like well-structured wing feathers)." The skeleton is not well articulated, but the bones are a bit jumbled and the integumentary filaments have been displaced, lacking the direct relationships to bony elements." But they are certainly close enough to enable rough determination. The skull, arms, legs, scapulae, coracoids, sacrum, a manus, a pes, and the furcula are all quite reasonably represented by the holotype, however, many vertebrae and rib elements are missing.   "Sinornithosaurus millenii gen. et sp. nov. comes from Sihetun, the famous Mesozoic fish-dinosaur-bird locality in China.. It is the oldest known dromeosaur (a basal dromaeosaurid) and its fossil "strongly supports the view that Dromaeosauridae and birds (where Aves is Avialae) are more closely related to each other than either is to Troodontidae ." Authors of the article state their analysis also indicates that Protarchaeopteryx and Caudipteryx are more remote from birds than is Troodontidae. "The currently established phylogenetic relationships among derived theropods seem to support the presence of true feathers in Dromaeosauridae, but the validity of this interpretation cannot be confirmed until more direct evidence is available."   "Sinornithosaurus not only greatly increases our knowledge of Dromaeosauridae but also provides evidence for a filamentous integument in this group. It is remarkably similar to early birds postcranially" (skeleton behind the skull). "The shoulder girdle shows that terrestrial dromaeosaurids had attained the prerequisites for powered, flapping flight, supporting the idea that bird flight originated from the ground up. The discovery of Sinornithosaurus widens the distribution of integumentary filaments among non-avian theropods."   The authors of the article XING XU, XIAO-LIN WANG & XIAO-CHUN WU claimS. millenii could apparently flap its long front limbs in a bird's mode. The evidence supposedly lies in the structure of the animal's shoulder girdle. That is, the lateral position of the glenoid (shoulder socket) would have permitted elevation, rotation and adduction of the forelimbs, providing Sinornithosaurus a wide range of arm movement similar to the capabilities of the fabled early bird Archaeopteryx.  The forelimbs were unusually long (claws well preserved, even with a horny sheath - keratin; long and curved), estimated to be 80% as long as the dromaeosaur's legs. The paired, ossified sterna possess a series of (probably five) costal facets (rib attachments), implying hinged sternocostal joints.      Sinornithosaurus is the fifth kind of theropod known to possess integumentary filaments. It is possible that these filaments indicate an insulatory layer that served to maintain body heat.    Authors suggest that the fossil provides more "evidence that the first birds took off from the ground, evolving from fast-running two-legged predatory dinosaurs called theropods". Is this almost the final answer to the famous dilemma: Did the bird's flight evolve from the ground up or from the trees down?   Well, I suggest a new solution to the problem: knowing that we've got very intelligent birds today, say African Gray parrot (Psittacus erithacus) could learn the kinds of symbolic and conceptual tasks that are generally considered as pre- or co-requisites for complex cognitive and communicative skills, why don't we ask such a smart feathery critter (who can fly), what is easier to him: To fly up from the ground or down from a branch? I am sure we'll get the straight answer.      Reference: XING XU, XIAO-LIN WANG & XIAO-CHUN WU - A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China , Nature 401, 262 - 266 , September 16 1999 (1999) © Macmillan Publishers Ltd.    The Nature paper discusses the specimen in considerable detail:   on-line: NATURE   Published in 1999 in now extinct online magazine: DIM Extra 4/1 (VOL 2)      Publishers interested in the above illustration (high resolution image for publishing purposes), please, contact Beri.

UPDATE (Feb.2014)

In the paper published 10 years later, authors claim this dromaeosaur from China's Jehol formation had grooved fangs as a venomous delivery system. In other words, Sinraptor's killing technique was something between a venomous snake and a Heloderma lizard.

The birdlike raptor Sinornithosaurus was venomous

 Enpu Gonga, Larry D. Martinb, David A. Burnhamb and Amanda R. Falkc

 
Reference: PNAS doi:10.1073/pnas.0912360107

 Edited by David B. Wake, University of California, Berkeley, Berkeley, CA, and approved November 16, 2009 (received for review October 26, 2009) 

Abstract

We suggest that some of the most avian dromaeosaurs, such as Sinornithosaurus, were venomous, and propose an ecological model for that taxon based on its unusual dentition and other cranial features including grooved teeth, a possible pocket for venom glands, and a groove leading from that pocket to the exposed bases of the teeth. These features are all analogous to the venomous morphology of lizards. Sinornithosaurus and related dromaeosaurs probably fed on the abundant birds of the Jehol forests during the Early Cretaceous in northeastern China.

Funny looking dinosaurs in vintage comics Part 1

When one stumbles upon dinosaurs in old comic books it's impossible not to wonder how little did those authors know about the anatomy and life styles of prehistoric animals. It is true, that in the 40's, until the 80's little was known and published. However, still some excellent paleo artists were around, like Zdenek Burian and Charles Knight, to name just the most prominent two.

A classic comic book theme: Time travelling to go to hunt dinosaurs and other prehistoric animals

Here is how  Burne Hogarth depicts Tyrannosaurus (I presume that is what this is supposed to be).

 Burne Hogarth (December 25, 1911 – January 28, 1996) was an American cartoonist, illustrator, educator, author and theoretician... (Wiki)

The anatomy is all wrong: the neck too long; the head a tad too small; the arms too long; one finger too many on each arm; looks bloated; legs weak and plantigrade (should be digtigrade like in birds); tail too short, too thin and too flexible...

...on the other hand his elephant is not exactly correct either...

... when I look at it better, even the lion has some strange features...

 Don't get me wrong. I loved his final product: Tarzan comics.

Even in some more recent comics (from 90's) the dinosaurs are outdated. Pteranodon is not quite correct either.

Nathan Never is a black-and-white, science fiction Italian comic book, published monthly in Italy since 1991 by Sergio Bonelli Editore (Wiki)
Ankylosaur in the right lower corner is borrowed from Burian's Gorgosaurus vs. Scolosaurus painting. Pteranodon from another Burian's painting was also used as a reference. However, it is a pity, that these restorations were already outdated.

 

Edmontosaurus with a fleshy rooster-like comb (repost)

Besides being a cartoonist I am also a paleoartist. I have been a paleoartist for decades. You can see some of my restorations at the Natural History Museum's in London site:
Natural History Museum London Picture Library
or at my old neglected Tripod site:
Beri's Dinosaur World (BDW)
I am happy to note that although many of the life restorations of dinosaurs and other prehistoric animals are decades old (the oldest dating from 1983), they still can pass as reasonably accurate ones or even don't have any major flaws regardless of the recent advances in paleontology and numerous new discoveries.
To cut the long story short, recently a new wonderful and very surprising Edmontosaurus fossil with some soft body parts impressions has been discovered and described. According to this find, not only the various dinosaurs had the bony combs, crests, horns and sails, but they might have been decorated with the fleshy ornaments as well. The Edmontosaurus had a fleshy rooster's comb.
National Geographic Society site has the story. Julius Csotonyi has produced a nice life restoration for the paper and the magazine.

However, looking at the published paper, I have noticed that the fleshy comb might have been larger and of a bit different shape than Julius has painted it. Here is my interpretation: