Tertiary larger foraminifera from Guam

Cole, Wayne S.

doi:10.3133/pp403e

Cited by 25 publications

(29 citation statements)

References 2 publications

(4 reference statements)

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“…In the table below, part of Tayama's chart pertaining to Guam is reproduced, along with his age assignments. The units of formational and member rank recognized and mapped in the present study are also shown, as well as their ages as determined chiefly from studies of the larger Foraminifera by ,V. Storrs Cole ( 1963). The units are correlated with the Tertiary letter classification of the Indonesian Tertiary of Van der Vlerk and Dickerson (1927), and with the standard epochs of the Cenozoic era, as used throughout this report.…”

Section: Geologic Successionmentioning

confidence: 97%

“…The fragments in thin section can be matched lithologically (Schlanger, 1964) and faunally (Cole, 1963), with all the facies of the Maemong limestone member exposed in both the Fena-Mapao area and the Mount Jumullong Manglo-Merizo area.…”

Section: Lithologymentioning

confidence: 99%

“…It is jointed and fractured; the joints are one to several feet apart. Foraminifera are rare, although at one locality (Rs 1) RotAalia atjehenis was identified by Cole (1963).…”

Section: Other Alif An Limestone Localitiesmentioning

confidence: 99%

“…In the tuffaceous matrix of this breccia (loc. Fn 2) are Foraminifera of Tertiary b age which have been identified by Cole (1963).…”

Section: Section Exposed Near Mount Tenjomentioning

confidence: 99%

“…AGE AND CORRELATION Cole (1963) The Mahlac member is a buff to tan or yellowishtan shale, friable, generally weathered i:" outcrop, and in places contains. extremely abundant planktonic Foraminifera.…”

Section: Conditions Of Depositionmentioning

confidence: 99%

See 4 more Smart Citations

General geology of Guam

Tracey¹,

Schlanger²,

Stark³

et al. 1964

Professional Paper

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Section: Geologic Successionmentioning

confidence: 97%

Section: Lithologymentioning

confidence: 99%

“…It is jointed and fractured; the joints are one to several feet apart. Foraminifera are rare, although at one locality (Rs 1) RotAalia atjehenis was identified by Cole (1963).…”

Section: Other Alif An Limestone Localitiesmentioning

confidence: 99%

“…In the tuffaceous matrix of this breccia (loc. Fn 2) are Foraminifera of Tertiary b age which have been identified by Cole (1963).…”

Section: Section Exposed Near Mount Tenjomentioning

confidence: 99%

Section: Conditions Of Depositionmentioning

confidence: 99%

See 3 more Smart Citations

General geology of Guam

Tracey¹,

Schlanger²,

Stark³

et al. 1964

Professional Paper

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Palaeobiogeography and evolutionary patterns of the larger foraminiferBorelisde Montfort (Borelidae)

Bassi

Braga

Domenico

et al. 2019

Papers in Palaeontology

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The palaeobiogeography of the alveolinoid Borelis species reveals the evolutionary patterns leading to the two extant representatives, which occur in shallow‐water tropical carbonate, coral reef‐related settings. Type material and new material of fossil Borelis species, along with Recent specimens were studied to assess their taxonomic status, species circumscriptions (based on proloculus size, occurrence of Y‐shaped septula, and the index of elongation), palaeobiogeography and evolutionary dynamics. The species dealt with here are known from exclusively fossil (B. pygmaea, B. inflata, B. philippinensis, B. melo, B. curdica), and from fossil and modern (B. pulchra, B. schlumbergeri) specimens. For the first time, fossil and Recent Borelis specimens are illustrated via micro‐computed tomography scanning images. Depending on the occurrence of Y‐shaped septula, two lineages are distinguished. Deriving from the middle–upper Eocene Borelis vonderschmitti, the first lineage includes B. inflata, B. pulchra and B. pygmaea, lacking Y‐shaped septula. The first species bearing Y‐shaped septula is the Rupelian B. philippinensis of the western Indo‐Pacific. The westward migrants of B. philippinensis into the Mediterranean gave rise to B. melo (Aquitanian–Messinian) and B. curdica (Burdigalian–Tortonian). These two species became isolated from the Indo‐Pacific by the Langhian eastern closure of the Mediterranean basin and disappeared during the Messinian Salinity Crisis. Since the Tortonian, B. schlumbergeri, which descended from B. philippinensis, has inhabited the Indo‐Pacific along with B. pulchra. From the central Pacific Ocean, B. pulchra reached the Caribbean area before the early Piacenzian closure of the Central America seaway.

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Morphology of Selected Families

Saraswati

2024

Larger Benthic Foraminifera Through Space and Time

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Tertiary larger foraminifera from Guam

Cited by 25 publications

References 2 publications

General geology of Guam

General geology of Guam

Palaeobiogeography and evolutionary patterns of the larger foraminiferBorelisde Montfort (Borelidae)

Morphology of Selected Families

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