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Now showing items 11-17 of 17
Temporal and phylogenetic evolution of the sauropod dinosaur body plan
(2016)
The colossal size and body plan of sauropod dinosaurs are unparalleled in terrestrial vertebrates. However, to date, there have been only limited attempts to examine temporal and phylogenetic patterns in the sauropod ...
The relationships of the Euparkeriidae and the rise of Archosauria
(2016)
For the first time, a phylogenetic analysis including all putative euparkeriid taxa is conducted, using a large data matrix analysed with maximum parsimony and Bayesian analysis. Using parsimony, the putative euparkeriidDorosuchus ...
Morphological and functional changes in the vertebral columnwith increasing aquatic adaptation in crocodylomorphs
(2015)
The lineage leading to modern Crocodylia has undergone dramatic evolutionary changes in morphology, ecology and locomotion over the past 200+Myr. These functional innovations may be explained in part by morphological changes ...
A new Early Oligocene toothed ‘baleen’ whale from western North America
(2015)
Archaic toothed mysticetes represent the evolutionary transition from raptorial to bulk filter feeding in baleen whales. Aetiocetids, in particular, preserve an intermediate morphological stage in which teeth functioned ...
Evolutionary origins and development of saw-teeth on the sawfish and sawshark rostrum
(2015)
A well-known characteristic of chondrichthyans (e.g. sharks, rays) is their covering of external skin denticles (placoid scales), but less well understood is the wide morphological diversity that these skin denticles can ...
The cervical anatomy of Samotherium,an intermediate-necked giraffid
(2015)
Giraffidae are represented by many extinct species. The only two extant taxa possess diametrically contrasting cervical morphology, as the okapi is short-necked and the giraffe is exceptionally long-necked.Samotherium ...
Egg shape changes at the theropod bird transition, and amorphometric study of amniote eggs
(2014)
The eggs of amniotes exhibit a remarkable variety of shapes, from spherical to elongate and from symmetrical to asymmetrical. We examine eggshell geometry in a diverse sample of fossil and living amniotes using geometric ...