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The families Choerolophodontidae and Amebelodontidae (the latter of which includes "shovel tuskers" with flattened lower tusks like Platybelodon) are sometimes considered gomphotheres sensu lato, [10] [11] [12] though some authors argue that Amebelodontidae should be sunk into Gomphotheriidae. [13]
Three or four cheek teeth are present on each jaw half, so the dental formula of odd-toed ungulates is: 0-3 . 0-1 . 2-4 . 3 1-3 . 1 . 2-4 . 3 × 2 = 30-44. The guttural pouch, a small outpocketing of the auditory tube that drains the middle ear, is a characteristic feature of Perissodactyla. [10]
In contrast to flagellates, propulsion of ciliates derives from the motion of a layer of densely-packed and collectively-moving cilia, which are short hair-like flagella covering their bodies. The seminal review paper of Brennen and Winet (1977) lists a few examples from both groups, highlighting their shape, beat form, geometric ...
Amoeboid movement is the most typical mode of locomotion in adherent eukaryotic cells. [1] It is a crawling-like type of movement accomplished by protrusion of cytoplasm of the cell involving the formation of pseudopodia ("false-feet") and posterior uropods. One or more pseudopodia may be produced at a time depending on the organism, but all ...
It had an estimated adult length of about 7.5 m (25 ft), [3] [4] with a body mass around 1.5–2 metric tons (1.7–2.2 short tons). [5] [6] The dimensions of Beibeilong were only surpassed or approached by the closely related Gigantoraptor. [7] Like other caenagnathids, Beibeilong would have been bipedal with well-developed legs.
One found in Herkimer County, New York in 1877 by Prof. R. Ellsworth Call was 1.63 m (5 ft 4 in) wide by 1.37 m (4 ft 6 in) broad by 24 cm (9.4 in) high. [15] [16] The most voluminous found in recent times was one at Thunder Bay, Ontario along the banks of the Kaministiquia River found by Adrian Karasiewicz in the summer of 2016. It was 81 ...
A pseudopod or pseudopodium (pl.: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that is emerged in the direction of movement. Filled with cytoplasm, pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate filaments. [1] [2] Pseudopods are used for motility ...
Simurgh – like the Hippogriff with the head of a human (Persian) Sihuanaba – a shapeshifting spirit that typically takes the form of an attractive, long haired woman seen from behind, before revealing her face to be that of a horse