Mobilność w czasach zamkniętych granic – notatki z badań terenowych w Serbii

Rydzewski, Robert

doi:10.12775/lse.2017.56.10

Cited by 2 publications

(9 citation statements)

References 3 publications

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“…In Galliformes the most common formula of the notarium is four fused vertebrae by all sites, followed by one free vertebra before the synsacrum. Some species present a short number of ossified tendons in last thoracic vertebrae, connecting with the sacrals (Rydzewski, 1935;Storer, 1982). In the mature stage of the notarium, the formation of spinal plate occurs and there is no distinction between individual neural spines.…”

Section: Galloanseraementioning

confidence: 99%

“…The ventral processes (or "ventral keel") occurs in all the notarial vertebrae and more robustly in the third, with ossification at its extremity and the fusion differing degrees with the adjacent ones, depending on the species. In Gallus gallus and in many Phasianidae species, the fusion of ventral keel forms a wider boné structure that joins the first with the second thoracic vertebra and a thinner boné structure that joins the second with the third, being called "ventral plate" (Rydzewski, 1935) (Figure S2).…”

Section: Galloanseraementioning

confidence: 99%

“…The fusion may involve two to six or seven vertebrae of the trunk (dorsal vertebrae in pterosaurs or thoracic vertebrae in birds) and in some cases also the last cervical vertebra is involved (Aires et al, 2021;Storer, 1982). There are different degrees of fusion, involving parts or all of the vertebral bodies, neural spines, transverse processes, and ventral processes (Eyton, 1869;Rydzewski, 1935).…”

Section: Introductionmentioning

confidence: 99%

“…A true notarium is recognized when the structure is not fused with the synsacrum, with at least one free thoracic vertebra in between. Normally, one to three free vertebrae occur between the notarium and synsacrum, which can be used to better identify how many and which thoracic vertebrae form the vertebral fusion (James, 2009;Rydzewski, 1935;Storer, 1982). The structure originating from complete fusion of the neural spines is named lamina dorsalis notarii, and the plate formed by the fused transverse processes is termed lamina transversalis notarii.…”

Section: Introductionmentioning

confidence: 99%

“…The structure originating from complete fusion of the neural spines is named lamina dorsalis notarii, and the plate formed by the fused transverse processes is termed lamina transversalis notarii. Occasional perforations in latter are called foramina laminae transversalis, which are sometimes covered by a thin and transparent bone lamella (Rydzewski, 1935).…”

Section: Introductionmentioning

confidence: 99%

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Review of morphology, development, and evolution of the notarium in birds

Aires

Reichert

Müller

et al. 2021

The Anatomical Record

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The notarium is a rigid bony structure, which resulted from the fusion of thoracic vertebrae of some pterosaurs and birds. It is high variable, ranging from two to six fused thoracic vertebrae. In this study, we reviewed and analyzed approximately 270 specimens of neornithine birds (representing 80% of the living orders) and some fossils in order to identify the number of fused vertebrae, degree and sites of vertebral fusion, occurrence of sutures, and other structures of potential phylogenetic and functional significance. These data were analyzed using a recent time-calibrated molecular phylogenetic tree and principal component analyses analysis evaluating the relationship with long bones in order to reconstruct macroevolutionary trends related to the evolution of the notarium. The occurrence of this structure shows a mosaic distribution over neornithine phylogeny, originating several times independently, especially during the Paleogene, in predominantly ground-dwelling forms. The notarium of these groups is characterized by: neural spines fused into single structure, intervertebral openings small to absent, large ventral keels forming ventral plates, and fused transverse processes. Derived neornithines, such as aquatic forms and long-legged birds, have a tendency to display a decreased degree of fusion between the vertebrae, which may indicate a reduction or disappearance of the notarium.

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Section: Galloanseraementioning

confidence: 99%

Section: Galloanseraementioning

confidence: 99%