Prehistoric Australia #04: Diamantinasaurus

Murungal
Diamantinasaurus matildae
Titanosauria

Dimensions: Males are larger than females, measuring from 49-53ft long and weighing approximately 13-16 tons. Females range from 40-46ft long, weighing 9-10 tons. 

Habitat/Location: Riverside forest margins, plains, and open woodlands of the Winton Formation, 95MYA

Diet: Conifer needles and leaves, seeds, fruits

Habits: Living alongside two other sauropod dinosaurs, murungals, also colloquially nicknamed "Waltzing Matildas", are luckily easily distinguishable by their unique coloration. Most striking of this is of course the bright red-orange chest of the bull, used in courting rituals. Solitary upon maturity, murungals rarely cross paths, but bulls stake out territories that they will defend from other males. These raucous battles can be heard long before they are seen, as the bulls let out booming calls in an attempt to bluff the other into backing down. When it comes to blows, bulls will thrash each other with their spiked tails and attempt to bite each other at the base of the neck and tail. As in earlier damarris, mating occurs in the early spring. Bulls, upon seeing a cow, will begin a swaying dance, occasionally rising up to show his red breast and eventually swaying side by side in step - leading to their nickname of "Waltzing Matildas". A bull will shadow a cow he has mated up for the next week, mating multiple times with her and fending off rival bulls. The cow lays anywhere from two to three dozen mottled brown eggs, often in the same nesting grounds as other sauropods, and buries her clutch before abandoning it. At the end of summer, the babies hatch and retreat en masse into the forests, forming creches of up to twenty individuals for safety. Murungals reach sexual maturity at 10 years of age, and are generally full grown around 13 or 14 years old. Oddly enough, murungals have occasionally been seen charging butchers for no apparent reason, as they pose no threat to a healthy adult. 

I drew this all the way back in July, so I can't remember who and what I referenced for this.