Osteology of the waterfowl

Woolfenden, Glen E.

doi:10.5962/bhl.title.104997

Cited by 49 publications

(116 citation statements)

References 6 publications

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“…La y Sibley & Ahlquist (1990), estos últimos basafamilia extinta Dromornithidae Rich, 1980, del dos en datos moleculares. Adicionalmente, Terciario de Australia, ha sido considerada des- Woolfenden (1961) ha encontrado numerosas side su descripción original como perteneciente a militudes en el postcráneo de estas dos familias. las aves ratites (Rich, 1980).…”

Section: Discusionunclassified

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Brontornis burmeisteri Moreno & Mercerat, a giant Anseriformes (Aves) from the Middle Miocene of Patagonia, Argentina

Agnolín¹

2007

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Brontornis burmeisteri Moreno & Mercerat, a giant Anseriformes (Aves) from the Middle Miocene of Patagonia, Argentina. Since its original description, Brontornis burmeisteri was considered as closely related to the family Phorusrhacidae (Gruiformes). Brontornis is known only by scarce postcranial remains, fragmentary mandibles and a quadrate bone. All the material comes from the Miocene of Santa Cruz Province, Argentina. A reanalysis of this material indicates that Brontornis may be more properly included within the Anseriformes as a basal member of this group, together with Diatryma and the extinct family Dromornithidae. Its inclusion within the Anseriformes suggests a more complex evolutionary history of the poorly known paleoavifaunas of South America.

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Section: Discusionunclassified

“…31-Foramen procoracoides del coracoides: 0-ausente o presente pero pobremente desarrollado; 1-presente y muy amplio. 3 2-Cuello coracoidal: 0-subcilíndrico; 1-lateralmente expandido (Woolfenden, 1961). 33-Porción esternal del coracoides fuertemente expandida: 0 -ausente; 1 -presente (Andors, 1992).…”

Section: Agradecimientosunclassified

Brontornis burmeisteri Moreno & Mercerat, a giant Anseriformes (Aves) from the Middle Miocene of Patagonia, Argentina

Agnolín¹

2007

MACN

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“…For instance, numerous anomalies of neural tube closure with a genetic basis exist in mammalian species (e.g., Van Allen et al, 1993;Hume et al, 1996). There is also intraspecific variation in the number of somites which can be deduced from the intraspecific variation in the number of vertebrae that arise from them at a later stage of development (Schulz, 1961;Woolfenden, 1961). Therefore, the conservation has to be the result of strong stabilizing selection against mutational changes during this stage.…”

Section: Conservation Can Be Ascribed To Stabilizing Selectionmentioning

confidence: 99%

Testing the vulnerability of the phylotypic stage: On modularity and evolutionary conservation

2001

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The phylotypic stage is the developmental stage at which vertebrates most resemble each other. In this study we test the plausibility of the hypotheses of Sander [1983, Development and Evolution, Cambridge University Press] and Raff [1994, Early Life on Earth, Columbia University Press; 1996, The Shape of Life, University of Chicago Press] that the phylotypic stage is conserved due to the intense and global interactivity occurring during that stage. First, we test the prediction that the phylotypic stage is much more vulnerable than any other stage. A search of the teratological literature shows that disturbances at this stage lead to a much higher mortality than in other stages, in accordance with the prediction. Second, we test whether that vulnerability is indeed caused by the interactiveness and lack of modularity of the inductions or, alternatively, is caused by some particularly vulnerable process going on at that time. From the pattern of multiple induced anomalies we conclude that it is indeed the interactiveness that is the root cause of the vulnerability. Together these results support the hypotheses of Sander and Raff. We end by presenting an argument on why the absence of modularity in the inductive interactions may also be the root cause of the conservation of the much discussed temporal and spatial colinearity of the Hox genes. J. Exp. Zool. (Mol. Dev. Evol.) 291:195–204, 2001. © 2001 Wiley‐Liss, Inc.

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“…El humero de Teleornis se acerca tanto en proporciones como morfologia a1 de la8 Samilias Anseranatidae y Anatidae, sin ernbargo puede ser incluido dentro de esta hltima par t,ener la depresiori braquiai de mayor tamaiio y el extremo distal del hiimero no expandido ni aplanado (Olson, 1999;Liveaey & Martin, 1988). Dentro de 10s Anatidae es fcicilmente excavado (vBase Short, 1969;Woolfenden, 1961). distinguible de 10s Anserinae entre otros caracDentro de la s u b h i l i a Arlserinae la ~osici6n tri-teres oar la mavor elevaci6n del lieamento artibal de Aminornis es incierta, sin enlbargo, podria ser asignable a la Tribu Cygnini, especialmente debido a las semejanaas que exhibe con el g6nero extinto Paracygnus, a1 cunl se acerca por presentar el procoracoides bier1 desarrollado y recto, el cue110 coracoidal redondeado en carte transverso y una depresi6n entre el procoracoides y la tuberosidad braquial.…”

unclassified

Systematic review of some deseadan (Middle Oligocene) birds described by Ameghino in 1899

Agnolín¹

2004

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Systematic review of somc dcseaden (Middle Oligocene) birds described by Ameghino in 1899. Mosl of the iossil birds describod by hileghino for -Descudan,, (Oligocene) beds arc roviewod. Tbc Coilowing is concluded: I ) Amirzor,zis ezcauattis is excluded from lhe order Gruiformos and is includcd within the Aiiseriforrnes; 2) Teleornis is considered an Anatidae Tadorninao; 3) Loi~cor~zis erecliis is an indeterniinate bird; 4) Riacoma caliginea and Smi1iorr~i.s peiiclrans are included in rho suporfamily Cariamoidea; 5) Cicoiiiopscs aninrclica is provisior~ully considered a valid gonus of the rdrnily Psilopteridae.

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Osteology of the waterfowl

Cited by 49 publications

References 6 publications

Brontornis burmeisteri Moreno & Mercerat, a giant Anseriformes (Aves) from the Middle Miocene of Patagonia, Argentina

Brontornis burmeisteri Moreno & Mercerat, a giant Anseriformes (Aves) from the Middle Miocene of Patagonia, Argentina

Testing the vulnerability of the phylotypic stage: On modularity and evolutionary conservation

Systematic review of some deseadan (Middle Oligocene) birds described by Ameghino in 1899

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