Results 81 to 90 of about 720 (168)

Figure 2 in Comparative ossification sequence and skeletal development of the postcranium of palaeognathous birds (Aves: Palaeognathae)

open access: yes, 2009
Figure 2. Lateral view of the hindlimb and pelvic girdle of palaeognath embryos. A–C, Dromaius novaehollandiae: A, stage 32 (RM 8052); B, stage 36 (day 25 of incubation, RM 8023); C, stage 40+ (day 36 of incubation, RM 8034).
Maxwell, Erin E., Larsson, Hans C. E.
core   +1 more source

Feather SEM images

open access: yes, 2016
Collection of SEM images used for measuring melanosome shape in Palaeognathae.
Chad M. Eliason (3258306)   +5 more
core   +1 more source

Figure 3. A in Metric variation in the postcranial skeleton of ostriches, Struthio (Aves: Palaeognathae), with new data on extinct subspecies

open access: yes, 2022
Figure 3. A, ternary diagrams comparing intramembral (length) proportions of femur (F): tibiotarsus (TT): tarsometatarsus (TM) in the extant ratites and moas. Data for Struthio are from the present work; for other ratites from Dickison (2007).
Elzanowski, Andrzej, Louchart, Antoine
core   +1 more source

Un individuo juvenil de Pterocnemia pennata (Aves, Rheidae) en el Pleistoceno de la Región Pampeana: implicancias ontogenéticas y ambientales

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Se da a conocer un individuo juvenil de Pterocnemia pennata (MACN 14780) procedente del Bonaerense (Pleistoceno Tardío temprano) de la localidad de Salto (Partido de Salto), en el norte de la provincia de Buenos Aires (Argentina) constituyendo el ...
Mariana B. J. Picasso   +3 more
doaj  

080-Investigating Reduction of the Ostrich Forelimb: Palaeognathae (Aves) [PDF]

open access: yes
Palaeognathae is a group of flightless birds classified by the absence of the keeled sternum (breastbone) present in flighted birds. As they diverged from their flighted ancestors, palaeognaths developed cursorial traits such as greater body mass and ...
Marzec, Isabel
core  

New insights aboutHinasuri nehuensis(Aves, Rheidae, Palaeognathae) from the early Pliocene of Argentina

open access: yesAlcheringa: An Australasian Journal of Palaeontology, 2016
Picasso, M.B.J. & Mosto, M.C., February 2016. New insights about Hinasuri nehuensis (Aves, Palaeognathae) from the early Pliocene of Argentina. Alcheringa 40, xxx–xxx. ISSN 0311-5518.Hinasuri nehuensis Tambussi was a robust, extinct rheid bird from the early Pliocene of Buenos Aires province, Argentina.
Picasso, Mariana Beatriz Julieta   +1 more
openaire   +2 more sources

Exon nDNA tree (K-Pg constraint)

open access: yes, 2015
Timetree from divergence dating analysis in BEAST using exon nDNA dataset, with topology constrained and additional maximum constraints applied so that all divergences except those for the Palaeognathae, Neognathae, and Galloanserae are constrained to ...
Ksepka, Daniel T.   +3 more
core   +1 more source

Intron nDNA tree (K-Pg constraint)

open access: yes, 2015
Timetree from divergence dating analysis in BEAST using intron nDNA dataset, with topology constrained and additional maximum constraints applied so that all divergences except those for the Palaeognathae, Neognathae, and Galloanserae are constrained to ...
Ksepka, Daniel T.   +3 more
core   +1 more source

Chromosome Evolution in Birds: Molecular Cytogenetics, Comparative Genomics and Whole Genome Assemblies

open access: yesEncyclopedia
Contemporary iterations of avian phylogenies based on multiple genome sequence assemblies assign three major clades: Palaeognathae (mostly ratite birds), Galloanseres (land and waterfowl) and the largest group—Neoaves.
Darren K. Griffin   +7 more
doaj   +1 more source

The kinematics of feeding and drinking in palaeognathous birds in relation to cranial morphology [PDF]

open access: yes, 2005
Cranial kinesis is an important feature in avian feeding behaviour and involves the transmission of quadrate movement to the upper bill by the Pterygoid-Palatinum Complex (PPC).
Gussekloo, S.W.S.   +5 more
core   +1 more source

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