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dc.contributor.author
Moron Alfonso, Daniel Andres
dc.contributor.author
Peterman, David J.
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Cichowolski, Marcela
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Hoffmann, René
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Lemanis, Robert E.
dc.date.available
2020-11-16T20:47:18Z
dc.date.issued
2020-08
dc.identifier.citation
Moron Alfonso, Daniel Andres; Peterman, David J.; Cichowolski, Marcela; Hoffmann, René; Lemanis, Robert E.; Virtual 3D modeling of the ammonoid conch to study its hydrostatic properties; Polish Academy of Sciences. Institute of Paleobiology; Acta Palaeontologica Polonica; 65; 3; 8-2020; 467-480
dc.identifier.issn
1732-2421
dc.identifier.uri
http://hdl.handle.net/11336/118472
dc.description.abstract
Computed tomography has provided a wealth of biological data that now stands beside a vast, more traditional, morphometric database. By exploiting these two resources, we present a novel methodology to construct intricate, virtual cephalopod shells. As a case of study, we applied this method to Maorites seymourianus using data obtained from a previous work. For this purpose, evaluation of the conch geometry, and the definition of new parameters such as the segment width expansion rate (SWER), segment height expansion rate (SHER), the segment thickness expansion rate (STER), and three indices related, were introduced. The conch geometry of M. seymourianus follows a spiral that can be defined by a polynomial function. While similar to a logarithmic function, a polynomial fit is preferred because it reveals higher values of whorl expansion at the early ontogenetic phase and lower values reaching the adult body chamber. Results on the hydrostatic properties of the virtual models indicate that M. seymourianus would have a near neutral buoyancy, ranging from slightly positive to slightly negative, depending upon parameters that influence organismal mass. Positions of the center of mass and the center of buoyancy indicate that the studied species would have a relatively low hydrostatic stability, estimating a shell orientation of approximately 74–76° with respect to the vertical, with the aperture slightly inclined downwards relative to the horizontal plain.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Polish Academy of Sciences. Institute of Paleobiology
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AMMONOIDEA
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VIRTUAL MODELING
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MORPHOMETRY
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CT-SCAN
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Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Virtual 3D modeling of the ammonoid conch to study its hydrostatic properties
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-09-11T19:42:25Z
dc.journal.volume
65
dc.journal.number
3
dc.journal.pagination
467-480
dc.journal.pais
Polonia
dc.journal.ciudad
Varsovia
dc.description.fil
Fil: Moron Alfonso, Daniel Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina
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Fil: Peterman, David J.. Wright State University; Estados Unidos
dc.description.fil
Fil: Cichowolski, Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina
dc.description.fil
Fil: Hoffmann, René. Ruhr Universität Bochum; Alemania
dc.description.fil
Fil: Lemanis, Robert E.. Technische Universität Dresden.; Alemania
dc.journal.title
Acta Palaeontologica Polonica
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.app.pan.pl/article/item/app007762020.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.4202/app.00776.2020
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