ABSTRACT The Rutgers Geology Museum is America’s first geology museum. Rocks, fossils, and minerals had been collected into “cabinets of curiosities” since first contact between Europeans and Native Americans, and beginning in the late eighteenth century, many of these small personal cabinets were expanded, organized, and made available to the public at natural history and philosophical societies in Philadelphia and Boston. In the first decades of the nineteenth century, geology was widely recognized as an important new science that influenced the organization of collections on display at the growing number of colleges, academies, societies, lyceums, and museums that began popping up all over the United States, but it was not until 1872 that the first museum dedicated specifically to geology was built at Rutgers College. Rutgers University, known as Rutgers College until 1924, is itself one of the oldest colleges in America. Originally chartered as Queens College in the British colony of New Jersey in 1766, Rutgers, along with Harvard (1636), William and Mary (1693), Yale (1701), University of Pennsylvania (1740), Columbia (1754), Princeton (1755), Brown (1764), and Dartmouth College (1769), was among the nine colonial colleges founded before the American Revolution. Since its inception, the Rutgers Geology Museum’s primary mission has been to educate the public on natural history–related topics. How this was accomplished has varied greatly through the years and originated with the “cabinet” of minerals that was displayed to students, alumni, and professors in the days of Dr. Lewis Beck, the first geology professor at Rutgers College. Through the efforts of Dr. George Cook, professor and vice president of Rutgers College, Geology Hall was erected in 1872 as the permanent home for the collections, and the museum and its collections became the focal point of the natural history courses taught at the time. The many professors and curators who tended to the museum and its collections over the next half century helped shape and dictate the future of science and geology education at the university, and with the creation of the Department of Geology in 1931, the museum became a center of leading geologic research and the outlet to present the results to the community. Today, the museum strives to connect with the local K–12 and university communities to inspire the next generation of geoscientists to continue building upon the legacy that the many Rutgers University geologists worked so hard to build.

ABSTRACT We review past and recent advances in Oligocene chronostratigraphy (and its internal subdivisions) and geochronology, the so-called “missing” Oligocene debate of the 1960s, and planktonic foraminiferal biostratigraphies of (sub)tropical and austral biogeographies. The Oligocene spans the interval from Chron C13r.0.14 to Subchron C6Cn.2n (0) , corresponding to astronomical cycles 84 01-C13n to 58 01-C6Cn . It is currently subdivided into two (Rupelian and Chattian) ages/stages. The planktonic foraminiferal biostratigraphy is characterized by a 7-fold (sub) tropical and 4-fold austral zonation, respectively.

ABSTRACT The work of Bé (1968) and Bé and others (1969) on the shell porosity of modern planktonic foraminifera provides additional criteria for categorizing the taxonomy of Oligocene genera and even species according to their test pore size and concentration. Use of these criteria in addition to the type of wall texture provides further information for the separation of groups of normal perforate Oligocene planktonic foraminifera for phylogeny and classification. In addition to wall textures recognized in the Eocene (Hemleben and Olsson, 2006) two types of wall texture are recognized in Oligocene spinose planktonic foraminifera: a Neogloboquadrina -type which occurs in the new genus Ciperoella and a conglobatus -type which occurs in two species of Dentoglobigerina.

ABSTRACT The taxonomy, biostratigraphy, and phylogeny of Oligocene Catapsydrax, Globorotaloides, and Protentelloides is reviewed. Catapsydrax and Globorotaloides are long-ranging genera with robust and dissolution-resistant tests. Both genera appeared in the early Eocene. Catapsydrax disappeared in the late Miocene while Globorotaloides has living representatives. Catapsydrax is ubiquitous in its distribution and highly variable in test size. Oligocene species of Globorotaloides are typically small (<250 μm) and usually rare in the tropics but may be common in high latitude and upwelling regions. After little evolutionary change in the Eocene and early Oligocene, Globorotaloides and Catapsydrax diversified at low latitudes in the mid- to late Oligocene resulting in the appearance of several new species and the quasi-clavate genus Protentelloides in the late Oligocene. So far Protentelloides spp. have only been found in the equatorial Atlantic Ocean. The following species are recognized as valid: Catapsydrax dissimilis (Cushman and Bermúdez), Catapsydrax indianus Spezzaferri and Pearson, Catapsydrax unicavus Bolli, Loeblich, and Tappan, Globorotaloides atlanticus Spezzaferri and Coxall n. sp., Globorotaloides eovariabilis Huber and Pearson, Globorotaloides hexagonus (Natland), Globorotaloides quadrocameratus Olsson, Pearson and Huber, Globorotaloides stainforthi (Bolli, Loeblich, and Tappan), Globorotaloides suteri Bolli, Globorotaloides testarugosus (Jenkins), Globorotaloides variabilis Bolli, Protentelloides dalhousiei Zhang and Scott, and Protentelloides primitivus Zhang and Scott.

ABSTRACT The taxonomy, phylogeny, and biostratigraphy of Oligocene and early Miocene Paragloborotalia and Parasubbotina are reviewed. The two genera are closely related; Paragloborotalia was derived from Parasubbotina in the early Eocene. Parasubbotina was more diverse during the middle Eocene, while Paragloborotalia experienced considerable diversification during the mid-Oligocene and in the latest Oligocene-earliest Miocene. A significant finding has been the synonymization of Globorotalia ( Tuborotalia ) mendacis Blow, and Turborotalia primitiva Brönnimann and Resig with Globorotalia birnageae Blow. The following species from the time interval of interest are regarded as valid: Paragloborotalia acrostoma (Wezel), Paragloborotalia birnageae (Blow), Paragloborotalia continuosa (Blow), Paragloborotalia incognita (Walters) Paragloborotalia kugleri (Bolli), Paragloborotalia mayeri (Cushman and Ellisor), Paragloborotalia nana (Bolli), Paragloborotalia opima (Bolli), Paragloborotalia pseudocontinuosa (Jenkins), Paragloborotalia pseudokugleri (Blow), Paragloborotalia semivera (Hornibrook), Paragloborotalia siakensis (LeRoy), Parasubbotina hagni (Gohrbandt), and Parasubbotina varianta (Subbotina). Paragloborotalia is a long-lived group of planktonic foraminifera that spanned the early Eocene to late Miocene and provided the root stock for the evolution of multiple smooth, nonspinose, and keeled globorotaliid lineages during the Neogene. The early Oligocene forms of Paragloborotalia (nana, opima, siakensis, pseudocontinuosa ) have 4 or 5 globular chambers in the final whorl with radial spiral sutures and a broadly rounded periphery. A trend from radial to curved spiral sutures is observed in late Oligocene and earliest Miocene lineages. Most species of Paragloborotalia had wide distributions, but some were more common in tropical to warm subtropical waters (e.g., siakensis, kugleri ) and were especially dominant in the equatorial Pacific divergence zone (e.g., nana, opima, and pseudocontinuosa ) analogous to modern tropical upwelling Neogloboquadrina. Other species thrived in cool subtropical and temperate waters (e.g., acrostoma, incognita ).

ABSTRACT The taxonomy, phylogeny and biostratigraphy of Oligocene Globigerina, Globigerinella and the new genus Quiltyella is reviewed. Globigerina and Globigerinella are long-ranging genera that extend into the modern. Globigerina appeared in the middle Eocene and diversified in the early Oligocene to give rise to several geographically wide-ranging and cosmopolitan species. Globigerinella originated and diversified in the early Oligocene and includes both common cosmopolitan species together with rare clavate and digitate species that were previously referred to the genus Protentella Lipps. Based on new wall textural studies we describe a third related genus, Quiltyella Coxall and Spezzaferri n. gen., which is always rare and highly geographically restricted. This is distinguished from Globigerina and Globigerinella by the higher pore concentration and extreme digitate chamber morphology. The following species are considered as valid: Globigerina archaeobulloides Hemleben and Olsson n. sp., Globigerina bulloides d’Orbigny, Globigerina officinalis Subbotina, Globigerinella clavaticamerata (Jenkins), Globigerinella megaperta Rögl, Globigerinella molinae (Popescu and Brotea), Globigerinella navazuelensis (Molina), Globigerinella obesa (Bolli), Globigerinella praesiphonifera (Blow), Globigerinella roeglina Spezzaferri and Coxall n. sp., and Globigerinella wagneri (Rögl), Quiltyella clavacella (Rögl), and Quiltyella nazcaensis (Quilty).

ABSTRACT Ciperoella Olsson and Hemleben n. gen. is erected for Oligocene spinose species that have a neogloboquadrinid-type wall texture and 4½-5 similarly sized chambers in the final whorl. Four species are recognized as distinct, namely Ciperoella anguliofficinalis (Blow), Ciperoella angulisuturalis (Bolli), Ciperoella ciperoensis (Bolli), and Ciperoella fariasi (Bermúdez). Their taxonomy, phylogeny, and biostratigraphy is discussed.

ABSTRACT The taxonomy, phylogeny and biostratigraphy of Oligocene and lower Miocene Globoturborotalita is reviewed. Globoturborotalita is a long-ranging genus appearing in the basal Eocene and still present in modern oceans with one living representative G. rubescens. Species attributed to this genus are generally common and cosmopolitan. The following species are recognized as valid: Globoturborotalita barbula Pearson and Wade, Globoturborotalita bassriverensis Olsson and Hemleben, Globoturborotalita brazieri (Jenkins), Globoturborotalita cancellata (Pessagno), Globoturborotalita connecta (Jenkins), Globoturborotalita eolabiacrassata Spezzaferri and Coxall n. sp., Globoturborotalita euapertura (Jenkins), Globoturborotalita gnaucki (Blow and Banner), Globoturborotalita labiacrassata (Jenkins), Globoturborotalita martini (Blow and Banner), Globoturborotalita occlusa (Blow and Banner), Globoturborotalita ouachitaensis (Howe and Wallace), Globoturborotalita paracancellata Olsson and Hemleben n. sp., Globoturborotalita pseudopraebulloides Olsson and Hemleben n. sp., and Globoturborotalita woodi (Jenkins).

ABSTRACT The taxonomy, phylogeny and biostratigraphy of late Oligocene and early Miocene Globigerinoides and Trilobatus is reviewed. Trilobatus and Globigerinoides are two long-ranging genera appearing in the late Oligocene and early Miocene, respectively. They diversified within the range interval of Paragloborotalia kugleri and are still present in modern oceans as some of the most abundant mixed-layer dwelling groups. The distinctive characteristic of the genera is the presence of one to several supplementary apertures on the spiral side. Globigerinoides species possess a ruber/sacculifer -type wall, Trilobatus possesses a sacculifer-type wall texture. The ruber -type wall texture probably appeared in the late Miocene with the appearance of G. ruber s.s. The following species of Globigerinoides are recognized as valid: G. altiaperturus Bolli, G. bollii Blow, G. italicus Mosna and Vercesi, G. joli Spezzaferri n. sp., G. neoparawoodi Spezzaferri n. sp., G. obliquas Bolli, and G. subquadratus Brönnimann. The following species of Trilobatus are recognized as valid: T. altospiralis Spezzaferri n. sp., T. immaturus (LeRoy), T. praeimmaturus (Brönnimann and Resig), T. primordius (Blow and Banner), T. quadrilobatus (d’Orbigny), T. subsacculifer (Cita, Premoli Silva, and Rossi) and T. trilobus (Reuss).

ABSTRACT The taxonomy, biostratigraphy, and phylogeny of Oligocene Subbotina is discussed and reviewed. We include forms that have teeth extending into the umbilicus. A total of nine species are accepted as distinct, namely Subbotina angiporoides (Hornibrook), Subbotina corpulenta (Subbotina), Subbotina eocaena (Gümbel), Subbotina gortanii (Borsetti), Subbotina linaperta (Finlay), Subbotina minima (Jenkins), Subbotina projecta Olsson, Pearson, and Wade n. sp., Subbotina tecta Pearson and Wade, and Subbotina utilisindex (Jenkins and Orr).

ABSTRACT The taxonomy, phylogeny, and biostratigraphy of Oligocene and lower Miocene Dentoglobigerina and Globoquadrina are reviewed. Because of the discovery of spine holes in various species assigned to these genera, the entire group is now considered to have been fully or sparsely spinose in life and hence part of Family Globigerinidae. One new species, Dentoglobigerina eotripartita Pearson, Wade, and Olsson n. sp., is named. Dentoglobigerina includes forms with and without umbilical teeth and species for which the presence or absence of a tooth is a variable feature. A significant finding has been the triple synonymy of Globigerina tripartita Koch, Globigerina rohri Bolli, and Globoquadrina dehiscens praedehiscens Blow, which greatly simplifies part of the taxonomy. The genus Globoquadrina is restricted to its type species, Globigerina dehiscens Chapman and others. The following species from the time interval of interest are regarded as valid: Dentoglobigerina altispira (Cushman and Jarvis), Dentoglobigerina haroemoenensis (LeRoy), Dentoglobigerina binaiensis (Koch), Dentoglobigerina eotripartita Pearson, Wade, and Olsson n. sp., Dentoglobigerina galavisi (Bermúdez), Dentoglobigerina globosa (Bolli), Dentoglobigerina globularis (Bermúdez), Dentoglobigerina juxtabinaiensis Fox and Wade, Dentoglobigerina larmeui (Akers), Dentoglobigerina prasaepis (Blow), Dentoglobigerina pseudovenezuelana (Blow and Banner), Dentoglobigerina sellii (Borsetti), Dentoglobigerina taci Pearson and Wade, Dentoglobigerina tapuriensis (Blow and Banner), Dentoglobigerina tripartita (Koch), Dentoglobigerina venezuelana (Hedberg), and Globoquadrina dehiscens (Chapman, Parr, and Collins). The genus Dentoglobigerina also comprises other Neogene/Quaternary species not listed, including the living species Dentoglobigerina cf. conglomerata (Schwager).

ABSTRACT The taxonomy, phylogeny, and biostratigraphy of Oligocene Turborotalita is reviewed. We recognize two species in the Oligocene, Turborotalita praequinqueloba Hemleben and Olsson and Turborotalita quinqueloba (Natland). The two species are distinguished primarily by the number of chambers in the final whorl (typically 4-4½ versus 4½-5½ respectively). We extend the stratigraphic range of T. quinqueloba down through the Oligocene and into the upper Eocene, making it the longest-lived of all the extant morphospecies. Combined with recently published research on the earliest Paleocene, it appears likely that Turborotalita represents a distinct clade that persisted for the entire Cenozoic, having first appeared in the immediate aftermath of the Cretaceous / Paleogene mass extinction.

ABSTRACT The taxonomy, phylogeny and biostratigraphic ranges of three Oligocene species of Acarinina are discussed together with their synonymies. Acarinina diversified in the Paleocene and Eocene and only a few species remain in the OligoceneThe following taxa are recognized as valid species: Acarinina collactea (Finlay), Acarinina echinata (Bolli), and Acarinina medizzai (Toumarkine and Bolli).

ABSTRACT The taxonomy, phylogeny and biostratigraphy of the Oligocene Globanomalinidae (comprising the genera Pseudohastigerina and Turborotalia ) is reviewed. Members of the Family have a macroperforate, nonspinose, smooth to weakly cancellate wall. Extinctions in the late Eocene left the Family restricted to just a few surviving forms which themselves became extinct in the early Oligocene. The group is very useful for biostratigraphy, with the extinctions of Pseudohastigerina naguewichiensis and Turborotalia ampliapertura providing the lowest two biozone boundaries of the Oligocene. The following species are recognized as valid: Pseudohastigerina micra (Cole), Pseudohastigerina naguewichiensis (Myatliuk), Turborotalia ampliapertura (Bolli), and Turborotalia increbescens (Bandy).

ABSTRACT New microstructural observations on the tests of microperforate and medioperforate planktonic foraminifera from the Oligocene are presented and comparisons are made with some Holocene specimens. Two types and two subtypes of wall texture are distinguished: the glutinata -type (in Globigerinita and Tenuitella ; with the danvillensis -subtype in Dipsidripella ), and the ototara -type (in most Chiloguembelina ), with the chipolensis -subtype (in Cassigerinella and some Chiloguembelina ). Given also the gross morphological differences between the two major groups (trochospiral versus biserial or enrolled-biserial), these wall textures likely indicate separate evolutionary radiations from different groups of benthic foraminifera and so help define the higher taxonomy of the planktonic foraminifera. Accordingly, the following superfamilies are recognized in the chapters of this work: Globigerinitoidea and Guembelitriodea. Their placement relative to other superfamilies of foraminifera is not yet known.

ABSTRACT The taxonomy, biostratigraphy, and phylogeny of the Oligocene Globigerinitidae (comprising the genera Dipsidripella , Globigerinita and Tenuitella ) is reviewed. This family is here included in the Superfamily Globigerinitoidea based on the distinctive wall texture. The group is united by possessing a ‘radially crystalline’ wall texture (the glutinata -type wall) which typically bears pyramidal pustules and in most species is microperforate (pores <1 μm in diameter). The genus Dipsidripella is included in the family here for the first time. In Dipsidripella the wall is often medioperforate (pores 1-2 μm in diameter; danvillensis -subtype). The following species are recognized as valid and occurring in the Oligocene: Dipsidripella danvillensis (Howe and Wallace), Dipsidripella liqianyui Huber and Pearson, Globigerinita glutinata (Egger), Globigerinita uvula (Ehrenberg), Tenuitella angustiumbilicata (Bolti), Tenuitella gemma (Jenkins), Tenuitella munda (Jenkins), and Tenuitella praegemma (Li).

ABSTRACT The taxonomy, phylogeny, and biostratigraphic ranges of six Oligocene species of Chiloguembelina and Jenkinsina are discussed together with their synonymies. The following species are recognized in this chapter: Chiloguembelina adriatica n. sp., Chiloguembelina andreae n. sp., Chiloguembelina cubensis (Palmer), Chiloguembelina ototara (Finlay), Jenkinsina columbiana (Howe), and Jenkinsitia triseriata (Terquem).

ABSTRACT The taxonomy, biostratigraphy, and phylogeny of Oligocene Cassigerinella is reviewed. Cassigerinella is in Superfamily Guembelitrioidea and Family Cassigerinellidae. It is distinguished by its ‘twisted enrolled-biserial’ coiling mode and distinctive test microstructure, with minute-scale internal ornamentation (‘endospikes’). Only two species occur in the Oligocene and are recognized as valid in this work: Cassigerinella chipolensis (Cushman and Ponton) and Cassigerinella eocaenica Cordey.