Nanostratigraphy

Biostratigraphic Chart - Gulf Basin, USA

0

3

NN19

4

CN13

Piacenzian

Gelasian

5
2
NN18

6

NN17
7

CN12
N20/N21

3

NN16

Bentley

1

PS

Selected Benthic
Foram Paleoenvironmental
Ranges

LGM

0.85

PTA

MIS16
MIS22

1

1.26

PAB

MIS 52 (Cala2)

1.93

2
Ge2

PL1

CN11

10
NN13
N18/N19

CN10

3

1

4

Za2

Za1

2

2.1

3
3.1

(HPO in GoM)

3.54
Sphenolithus abies
3.7
Reticulofenestra pseudoumbilica
3.81
Pseudo-Sphenolithus abies B
3.9
Sphenolithus abies B
3.92
Amaurolithus tricorniculatus

Ceratolithus acutus

Messinian

12
6
N17b

5.88

Me2
6

13

Globorotalia praehirsuta

Hyalinea balthica*
Angulogerina B*

1.3

FAD Truncorotalia1 truncatulinoides

2

Cristellaria S*

Menardella1 multicamerata
Dentoglobigerina3 altispira

Globigerina venezuelana

2.98

2.47
Bolivina imporcata
Ceratobulimina pacifica*

Me1

7.4

4

5

5.04

7.83
8

8

A

LB

MB

2.8

3.13

3

3

Eponides hannai (Rotalia B)

3.21

3.16

3.81
Globorotalia margaritae
Globoturborotalia nepenthes

3.88

(HPO in GoM - 3.92)

Globorotalia plesiotumida
Globigerina bollii (HO in GoM)

3.77
3.85

4

Uvigerina rustica*

Buliminella 1*,
Textularia mexicana*

Discoaster A acme

Globigerinoides mitra

4.95

5.65

6

4

4.78

5

5

Textularia X*

Menardella menardii
Coil change R/L

3.87

3.92

5.36

5.5

Globorotalia juanai

Globoquadrina dehiscens

Textularia tatumi

5.65

5.91

6

Robulus E*

5.65

6

6.05

6.32
6.58

7.37

Discoaster C acme

8.04

NN11

Textularia 16*

6.8

7

7.3

Sphaeroidinellopsis kochi

7.83
Catinaster mexicanus
Discoaster prepentaradiatus

6.76

7

7

D. neohamatus, D. calcaris
7.53
Discoaster loeblichii

N17

2.55

(HPO in GoM - 3.53)

7

14

UB

2.29

2

Sigmoilina P

5.59
5.71