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Pseudo-cryptic speciation and adaptive morphology in the paleontological record

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TitleInfo
Title
Pseudo-cryptic speciation and adaptive morphology in the paleontological record
SubTitle
examples from the coccolithophore Braarudosphaera and the aquatic belostomatid insect triassonepa
Name (type = personal)
NamePart (type = family)
Criscione
NamePart (type = given)
Julia A.
NamePart (type = date)
1991-
DisplayForm
Julia A. Criscione
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RoleTerm (authority = RULIB)
author
Name (type = personal)
NamePart (type = family)
Aubry
NamePart (type = given)
Marie-Pierre
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Marie-Pierre Aubry
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Advisory Committee
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chair
Name (type = personal)
NamePart (type = family)
Berggren
NamePart (type = given)
William
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William Berggren
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Advisory Committee
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internal member
Name (type = personal)
NamePart (type = family)
Grimaldi
NamePart (type = given)
David
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David Grimaldi
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Advisory Committee
Role
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outside member
Name (type = corporate)
NamePart
Rutgers University
Role
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degree grantor
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NamePart
Graduate School - New Brunswick
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school
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Text
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theses
OriginInfo
DateCreated (qualifier = exact)
2017
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2017-01
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2017
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xx
Language
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eng
Abstract (type = abstract)
Evolution is the process by which species change through time, and understanding the evolutionary processes that occur today allows us to infer the evolutionary history of organisms from the distant past. In this thesis, the evolutionary processes and adaptations of two distantly related organisms that inhabit different environments were studied. Chapter one investigated the size variation in pentaliths of Braarudosphaera bigelowii, a marine haptophyte that is abundant in the Lower Paleocene Zumaia section of northern Spain, and explored the idea that the variability in pentalith size represents pseudo-cryptic speciation. A cluster analysis in RStudio (mclust package) yielded two size groups, which were interpreted as two unique pseudo-cryptic species: form X (< 4.5 μm) and form Y (≥ 4.5 μm). In addition, a sudden increase in B. bigelowii abundance occurred near the Paleocene C27n/26r magnetic reversal and formed a “peak acme” zone of approximately four meters. Isotopic analyses of organic matter revealed that the onset of this acme coincided with an abrupt negative excursion (3.5‰) in δ13Corg. Biostratigraphic correlation between the Zumaia section and the Danian/Selandian boundary section at Qreiya, Egypt confirmed that this isotopic shift correlates with a hyperthermal event (Latest Danian Event), and suggests that changes in the climate may have affected the abundance of B. bigelowii at Zumaia. Chapter two described a new species of aquatic belostomatid insect, Triassonepa solensis, from the Upper Triassic, lacustrine Cow Branch Formation that outcrops along the Virginia/North Carolina border. It was placed in a new genus due to the unique structure of its raptorial foreleg, in which the tarsus is elongate and opposed to the tibia + femur. Due to the exclusive preservation of terrestrial adult insects and surface-dwelling aquatic insects, in addition to the geochemistry of the deposit, it is likely that the Cow Branch Formation was a saline, alkaline, rift valley lake.
Subject (authority = RUETD)
Topic
Geological Sciences
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
Identifier
ETD_7775
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (xii, 100 p. : ill.)
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Julia A. Criscione
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
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NjNbRU
Identifier (type = doi)
doi:10.7282/T34170GM
Genre (authority = ExL-Esploro)
ETD graduate
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Rights

RightsDeclaration (ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder (type = personal)
Name
FamilyName
Criscione
GivenName
Julia
MiddleName
A.
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2016-12-11 09:29:39
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Name
Julia Criscione
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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