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Table 1. Stratigraphic-range information for species in the Caulet data set. Species marked with an asterisk had occurrences that are too rare or scattered to be used in this study. Dashes indicate a truncated first occurrence, bold values are FOs taken from the Lazarus data set. LOs with the value zero are taxa currently in existence. Longevities that are based on truncated values are given in italics.

Name

FO

LO

Range

Acanthodesmia viniculata

3

0

3

Actinomma popofskii

2.6

0

2.6

Antarctissa cylindrica

6.4

0.6

5.8

Antarctissa denticulata

2.6

0

2.6

Antarctissa robusta

-

2.5

 

Antarctissa strelkovi

2.5

0

2.5

Anthocyrtella callopisma

-

0.6

 

Botyropera triloba

4.6

0

4.6

Cycladophora bicornis

1.6

0

1.6

Cycladophora davisiana

2.7

0

2.7

Cycladophora pliocenica

9.6

1.6

8

Desmospyris rhodospyroides

20.5

4.9

15.6

Desmosypris spongiosa

5

2.5

2.5

Dictyophimus mawsoni

0.9

0.6

0.3

Eucyrtidium biconicum

-

2.5

 

Eucyrtidium calvertense*

 

 

 

Eucyrtidium cienkowski*

 

 

 

Eucyrtidium inflatum

11.3

4.4

6.9

Eucyrtidium teuscheri orthoporus*

 

 

 

Eucyrtidium teuscheri teuscheri

1.9

0

1.9

Gondwanaria dogieli

3

0

3

Haliometta miocenica*

 

 

 

Helotholus praevema

-

4.6

 

Lamprocyrtis heteroporos

6.1

2.5

3.6

Litharachnium tentorium

0.7

0

0.7

Lithelius nautiloides

1.7

0

1.7

Lychnocanium grande

9.9

4.9

5

Mitrocalpis araneafera

0.9

0

0.9

Phormostichoartus pitomorphus*

 

 

 

Phorticum clevei

4.9

0

4.9

Plectacantha sp.

0.9

0

0.9

Prunopyle antarctica

1.6

0

1.6

Prunopyle buspinigerum*

 

 

 

Prunopyle frakesi

-

6.2

 

Prunopyle tetrapila

-

1.5

 

Prunopyle titan

6.1

3.4

2.7

Pseudocubus vema

4.7

2.5

2.2

Pterocanium trilobum

2.6

0.2

2.4

Pterocorys clausus*

 

 

 

Rhizosphaera antarctica

-

0

 

Saccospyris antarctica

1.7

0

1.7

Saccospyris conithorax

1.7

0

1.7

Saturnalis circularis

17.5

0

17.5

Spongotrochus glacialis

13.3

0

13.3

Stichocorys peregrina

9.8

4.7

5.1

Streblacantha circumtexta*

 

 

 

Stylatractus universus

13.2

0.3

12.9

Theocorys redondoensis*

 

 

 

Triceraspyris antarctica

1.7

0

1.7

Triceraspyris coronata

18.6

4.9

13.7

Notes: * -> not used as too rare, etc, bol - FAD taken from Laz data, italic - truncated range