Any flat-bed press capable of pressing a specimen 22 inches square may be used as an alternative.

A specimen of Proto-Sinaitic script containing a phrase which may mean ' death to Baalat '.

Summarizes the excavation and transport by helicopter of a possible Albertosaurus skeleton ; however, per Carr & Williamson ( 2010 ), specimen may later have been assigned to Bistahieversor.

Rather, the sample is evaporated in a controlled manner ( field evaporation ) and the evaporated ions are impacted onto a detector, which may be up to several meters from the specimen.

Whilst the magnification of both the field ion and atom probe microscopes is extremely high, the exact magnification is dependant upon conditions specific to the examined specimen, so unlike for conventional electron microscopes, there is often little direct control on magnification, and furthermore, obtained images may have strongly variable magnifications due to fluctuations in the shape of the electric field at the surface.

* Low molecular weight gases ( Hydrogen & helium ) may be difficult to remove from the analysis chamber, and may be adsorbed and emitted from the specimen, even though not present in the original specimen.

These processes may result in artifacts, but these can usually be identified by comparing the results obtained by using radically different specimen preparation methods.

When suspected hypoglycemia recurs and a critical specimen has not been obtained, the diagnostic evaluation may take several paths.

Skeptics dismissed the photos as frauds ; seeing that the bird is in roughly the same position in both photos, they suggested they may have been of a mounted specimen.

As a curious specimen of his method, it may be mentioned that he regards the three stories of Noah's ark as symbolic of the three sciences mathematics, physics, and metaphysics.

Staining may also introduce artifacts, apparent structural details that are caused by the processing of the specimen and are thus not a legitimate feature of the specimen.

Rheinberg illumination is a special variant of dark field illumination in which transparent, colored filters are inserted just before the condenser so that light rays at high aperture are differently colored than those at low aperture ( i. e. the background to the specimen may be blue while the object appears self-luminous red ).

Participants of this pastime may either use commercially prepared microscopic slides or engage in the task of specimen preparation.

An even larger specimen is known from the Pierre Shale Formation, with a wingspan of, though this specimen may belong to the distinct genus and species Geosternbergia maysei.

SEMs may have condenser and objective lenses, but their function is to focus the beam to a spot, and not to image the specimen.

The waveguide can be put in contact with the specimen ( as in a Medical ultrasonography ), in which case the waveguide ensures that the power of the testing wave is conserved, or the specimen may be put inside the waveguide ( as in a dielectric constant measurement ), so that smaller objects can be tested and the accuracy is better.

Skin impressions from an as-yet undescribed specimen show that some species may have been covered in bristle-like structures, similar to the more primitive ceratopsian Psittacosaurus.

In biological applications especially, the specimen may be fluorescent.

In 1839, Münster described another specimen he considered to belong to Ornithocephalus ( i. e. Pterodactylus ), with a distinctive long tail.

found that the head and upper body actually belong to a specimen of the primitive fossil bird Yanornis.

Today, C. longipes is the only recognized species, although the larger specimen discovered in France in the 1970s was once thought to belong to a separate species and named C. corallestris.

As its name suggests, Oviraptor was originally presumed to have eaten eggs, based on its association with a fossilized nest ( specimen number AMNH FR 6508 ) thought to belong to Protoceratops.

Other bones that were found at the same location and originally thought to belong to Ultrasauros, like a shoulder girdle ( scapulocoracoid, BYU 9462 ), actually belonged to Brachiosaurus, possibly a large specimen of Brachiosaurus altithorax.

It is probably synonymous with Angaturama limai, another spinosaurid from the same time and place, whose remains curiously seem to complete Irritators skull, meaning that they could belong to the same specimen.

This specimen was named Dynamosaurus imperiosus in 1905 but is now thought to belong to Tyrannosaurus rex.

However, he does not consider the specimen to belong to Avialae either ( see Avialae ).

The type specimen of P. alexi was assumed to belong to the same specimen as that of H. gracilis, so when Lucas ( 1903 ) decided that the former specimen represented a distinct genus, he mistakenly used the later specimen to anchor it, creating the name Hargeria gracilis.

The type species P. walkeri, from Alberta, is known from a single definitive specimen from the Dinosaur Park Formation, though others from the Dinosaur Park probably belong to it.

Gilmore had used this skull to describe the skull of Camptosaurus, but the specimen was recently shown by Brill and Carpenter not to belong to Camptosaurus.

Since AMNH 587 was virtually identical to the preserved hand of the Tanycolagreus type specimen, it is now considered to belong to that dinosaur and not to Ornitholestes.

One particularly famous specimen preserves a Velociraptor locked in combat with a Protoceratops.

In 1924, museum president Henry Fairfield Osborn designated the skull and claw ( which he assumed to come from the hand ) as the type specimen of his new genus, Velociraptor.

The " Fighting Dinosaurs " specimen, found in 1971, preserves a Velociraptor mongoliensis and Protoceratops andrewsi in combat and provides direct evidence of predatory behavior.

In the " Fighting Dinosaurs " specimen, the Velociraptor lies on its side, to the right of the Protoceratops, with one of its sickle claws apparently embedded in the throat of its prey, while the beak of Protoceratops is clamped down upon the right forelimb of its attacker.

In 2012 Hone and colleagues published a paper that described a Velociraptor specimen with a long bone of an azhdarchid pterosaur in its gut.

Based on the spacing of the six preserved knobs in this specimen, the authors suggested that Velociraptor bore 14 secondaries ( wing feathers stemming from the forearm ), compared with 12 or more in Archaeopteryx, 18 in Microraptor, and 10 in Rahonavis.

A specimen of Velociraptor has been found with quill knobs on the ulna.

For example, a Compsognathus fossil was found with a lizard in its stomach, and a Velociraptor specimen was found locked in combat with a Protoceratops ( a type of ornithischian dinosaur ).

However, one well-preserved specimen of Velociraptor mongoliensis ( IGM 100 / 986 ) has an articulated tail skeleton that is curved horizontally in a long S-shape.

The " Fighting Dinosaurs " specimen of V. mongoliensis and Protoceratops andrewsi

Skull of the V. mongoliensis " Fighting Dinosaurs " specimen

A second species announced by Barsbold in 1996, " Gallimimus mongoliensis " based on specimen IGM 100 / 14 from the older Bayanshiree Formation, has never been formally referred to this genus.

A second species, S. junior, was named by Rinchen Barsbold in 1974, based on a larger specimen from the Nemegt Formation thought to be more closely related to S. mongoliensis than to other troodonts.