Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Margaret M. Yacobucci"'
Publikováno v:
Acta Palaeontologica Polonica, Vol 64, Iss 3, Pp 441-460 (2019)
Theoretical 3D models were digitally reconstructed from a phragmocone section of Baculites compressus in order to investigate the hydrostatic properties of the orthoconic morphotype. These virtual models all had the capacity for neutral buoyancy (or
Externí odkaz:
https://doaj.org/article/fa4469ab82a8458ea9abe8afcdb413bf
Autor:
Margaret M. Yacobucci
Publikováno v:
PeerJ, Vol 6, p e5909 (2018)
The chambered shells of cephalopod mollusks, such as modern Nautilus and fossil ammonoids, have the potential to float after death, which could result in significant postmortem transport of shells away from living habitats. Such transport would call
Externí odkaz:
https://doaj.org/article/d48959d8ed884ac0a63749f89657138d
Although the species is one of the fundamental units of biological classification, there is remarkably little consensus among biologists about what defines a species, even within distinct sub-disciplines. The literature of paleobiology, in particular
Autor:
Hyun Kyoung Ro, Blaze Campbell‐Jacobs, Ellen M. Broido, Lisa K. Hanasono, Deborah A. O’Neil, Margaret M. Yacobucci, Karen V. Root
Publikováno v:
Gender, Work & Organization.
Publikováno v:
Journal of Molluscan Studies. 86:267-279
The biomechanics of uncoiled heteromorph ammonoids with body chambers that terminate in U-shaped hooks (ancylocones) were investigated with virtual and physical models of Audouliceras renauxianum. Virtual models were used to compute the hydrostatic p
Autor:
Neil H. Landman, Tom Linn, Charles N. Ciampaglio, Margaret M. Yacobucci, David J. Peterman, Nicholas Hebdon
Publikováno v:
Geobios. 60:79-98
Scaphitid ammonoids were ubiquitous and significant components of the Western Interior Seaway during the Late Cretaceous. This group is characterized by a recurved hook at maturity that deviates from the juvenile whorls. Such a modification seems cou
Publikováno v:
Paleobiology. 46:237-258
The seemingly aberrant coiling of heteromorphic ammonoids suggests that they underwent more significant changes in hydrostatic properties throughout ontogeny than their planispiral counterparts. Such changes may have been responses to different selec
Autor:
Deborah A. O'Neil, Susana Peña, Lisa K. Hanasono, Ellen M. Broido, Karen V. Root, Margaret M. Yacobucci
Publikováno v:
Journal of Diversity in Higher Education. 12:85-98
Publikováno v:
GeoResJ. 14:98-120
The spatial paleoceanography of the entire Western Interior Seaway (WIS) during the Cenomanian-Turonian Oceanic Anoxic Event (OAE2) has been reconstructed quantitatively for the first time using Geographic Information Systems. Models of foraminiferal
Autor:
Margaret M. Yacobucci
Publikováno v:
Paleobiology. 43:587-619
Two end-member models are proposed to explain marine biotic responses to greenhouse conditions. Global warming and increasing sea level may: (1) promote dispersal of marine species, leading to larger geographic ranges and decreased speciation and bio