Results 201 to 210 of about 142,522 (303)

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

The Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

Apical Vertebral Translation as a Coronal Risk Factor for Side-Specific Hip Osteoarthritis in Adult Degenerative Scoliosis. [PDF]

Global Spine J
Xu Z, Ma X, Chen X, Zhang S, Xiao B, Zhang Y.   +5 more
europepmc   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

LBX1 alters polyamine pathway in adolescent idiopathic scoliosis - a new therapeutic target to mitigate curve progression. [PDF]

J Orthop Translat
Zhang Z, Wang Y, Hu Z, Tian W, Li M, Tang Z, Chang L, Tang HH, Tang G, Li J, Wu Z, Xu H, Chui EC, Liu Z, Lau AY, Lam TP, Mok DK, Chen H, Qiu Y, Cheng JC, Zhu Z, Lee WY.   +21 more
europepmc   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Optimal ecosystem management with structural dynamics

We address the problem of optimal management of a self organizing ecosystem along ecological succession. A dynamic carrying capacity is interpreted as depicting the dynamics of habitat creation and occupation along ecological succession.
Domingos, Tiago, Mota, Rui Pedro
core  

<i>Dracula aguilarii</i> (Orchidaceae, Pleurothallidinae), a new species from southwestern Ecuador and the first confirmed location for <i>Dracula soennemarkii</i>. [PDF]

PhytoKeys
Baquero R LE, Jiménez MM, Iturralde GA.
europepmc   +1 more source

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source

Soil Microbial Diversity in Páramos Wetland of the Colombian Andes Reveals Novel and Unique Features Within a Global Wetland Database. [PDF]

Microb Ecol
Couradeau E, Vanegas J, Betancurt-Anzola D, Glass S, Eckert K, Bechtold EK, Ellenbogen JB, Zaragoza LR, Wrighton K, Vanegas JS.   +9 more
europepmc   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source