Poropat, SF, Martin, SK, Tosolini, A.-MP, Wagstaff, BE, Bean, LB, Kear, BP, Vickers-Rich, P.
& Rich, TH, May 2018. Early Cretaceous polar biotas of Victoria, southeastern Australia—an …

Advances in dating and systematics have prompted a revision of monotreme evolution to
refine the timing of adaptative trends affecting body size and craniodental morphology. The …

Jaw morphology is closely linked to both diet and biomechanical performance, and jaws are
one of the most common Mesozoic mammal fossil elements. Knowledge of the dietary and …

Gliding is a distinctive locomotion type that has been identified in only three mammal
species from the Mesozoic era. Here we describe another Jurassic glider that belongs to the …

Mammals are arguably the most conspicuous tetrapods in the modern biota. Although there
are fewer extant mammal species (~ 5,500) than birds (~ 10,000) or squamates (~ 10,000) …

The evolution of the mammalian middle ear is thought to provide an example of
'recapitulation'—the theory that the present embryological development of a species reflects …

As evolutionary biologists, we live in exciting and promising times. The material basis of our
science is growing at an unprecedented rate; fossils preserving structures we thought …

Shuotheriids are Jurassic mammaliaforms that possess pseudotribosphenic teeth in which a
pseudotalonid is anterior to the trigonid in the lower molar, contrasting with the tribosphenic …

Monotremata is a clade of egg-lying mammals, represented by the living platypus and
echidnas, which is endemic to Australia, and adjacent islands. Occurrence of basal …

The platypus (Ornithorhynchus anatinus) is one of the world's most evolutionarily distinct
mammals, one of five extant species of egg-laying mammals, and the only living species …