Figure 2. Stratigraphical distribution of taxa in the three studied data sets - Caulet (top), Lazarus (middle), and Abelmann (bottom). Vertical scale for age for all plots is the same, horizontal scale for taxa categories arbitrary. Names of species in each graph are given below.
Number |
Lazarus list |
Abelmann list |
Caulet list |
---|---|---|---|
1 |
Velicucullus sp. |
Gondwanaria deflandrei |
Cycladophora pliocenica |
2 |
C. antiqua |
Prunopyle hayesi |
Desmospyris rhodospyroides |
3 |
C. regipileus |
Gondwanaria japonica |
Eucyrtidium biconicum |
4 |
C. golli group |
Collosphaerid sp. B |
Helotholus praevema |
5 |
S. santaenae |
Spongodiscus craticulatus |
Lychnocanium grande |
6 |
C. longithorax |
Corythospyris fiscella |
Prunopyle frakesi |
7 |
L. conica |
Actinomma sp. B |
Stichocorys peregrina |
8 |
Stylacontarium sp. |
Amphistylus angelinus |
Antarctissa cylindrica |
9 |
C. microporus |
Actinomma medusa |
Antarctissa robusta |
10 |
A. magnifenestra |
Heliodiscus ? sp. B |
Anthocyrtella callopisma |
11 |
Sethoconus sp. |
Spongopyle osculosa |
Prunopyle tetrapila |
12 |
C. tetrapera |
Carpocanarium papillosum |
Spongotrochus glacialis |
13 |
H. philosophica ? |
Velicucullus cf. oddgurneri |
Eucyrtidium inflatum |
14 |
D. hastatus |
Cenosphaera sp. A |
Saturnalis circularis |
15 |
L. timmsi |
Actinomma holtedahli |
Stylatractus universus |
16 |
E. cienkowski |
Ceratocyrtis stigi |
Triceraspyris coronata |
17 |
A. angelinus |
Prunopyle sp. A |
Prunopyle titan |
18 |
D. rhodospyroides |
Spongotrochus sp. |
Rhizosphaera antarctica |
19 |
P. hayesi |
Prunopyle titan |
Lamprocyrtis heteroporos |
20 |
T. coronata group |
Prunopyle sp. B |
Desmosypris spongiosa |
21 |
E. punctatum |
Eucyrtidium cienkowskii group |
Phorticum clevei |
22 |
D. crisae |
Stylosphaera radiosa |
Pseudocubus vema |
23 |
S. circularis |
Cyrtocapsella robusta |
Botyropera triloba |
24 |
E. calvertense |
Stylosphaera sp. B |
Acanthodesmia viniculata |
25 |
C. disparidens |
Lamprocyclas sp. |
Gondwanaria dogieli |
26 |
S. bicorne ? |
Ceratocyrtis mashae |
Cycladophora davisiana |
27 |
T. clausa |
Stylosphaera coronata laevis |
Actinomma popofskii |
28 |
C. japonica |
Velicucullus altus |
Antarctissa denticulata |
29 |
C.magnisphaera |
Lithomelissa robusta |
Pterocanium trilobum |
30 |
Rhopalastrum spp. |
Lychnocanoma conica |
Antarctissa strelkovi |
31 |
Didymocyrtis/Diartus spp. |
Cycladophora sp. |
Eucyrtidium teuscheri euscheri |
32 |
A. deflandrei |
Stylatractus santaeannae |
Lithelius nautiloides |
33 |
C. humerus |
Siphocampe sp. |
Saccospyris antarctica |
34 |
D. megalocephalis |
Stylosphaera sp. C |
Saccospyris conithorax |
35 |
A. golowini |
Cycladophora antiqua |
Triceraspyris antarctica |
36 |
Lampromitra sp. |
Cycladophora conica |
Cycladophora bicornis |
37 |
S. glacialis |
Cycladophora golli regipileus |
Prunopyle antarctica |
38 |
S. universus |
Cycladophora golli golli |
Dictyophimus mawsoni |
39 |
P. korotnevi |
Cyrtocapsella tetrapera |
Mitrocalpis araneafera |
40 |
A. murrayana |
Dendrospyris stabilis |
Plectacantha sp. |
41 |
C. spongothorax |
Lithomelissa cf. ehrenbergi |
Litharachnium tentoriu |
42 |
E. pseudoinflatum |
Circodiscus ellipticus |
|
43 |
S. transparum |
Cyrtocapsella longithorax |
|
44 |
C. bicornis |
Hexacontium cf. enthacanthum |
|
45 |
S. vesuvius |
Druppatractus hastatus |
|
46 |
A.australis |
Prunopyle sp. D |
|
47 |
L. stigi |
Siphocampe arachnea group |
|
48 |
L. grande |
Stylatractus neptunus |
|
49 |
P. titan |
Antarctissa robusta |
|
50 |
S. peregrina |
Acrosphaera spp. |
|
51 |
D. cf. megalocephalis |
Peripyramis circumtexta |
|
52 |
C. pliocenica |
Tripilidium clavipes |
|
53 |
Helotholus haysi |
Calocyclas cf. semipolita |
|
54 |
A. strelkovi |
Eucyrtidium calvertense group |
|
55 |
A. ? mercurius |
Stauroxiphos communis |
|
56 |
Anthocyrtidium sp. |
Gondwanaria sp. A |
|
57 |
A. denticulata |
Dictyophimus gracilipes |
|
58 |
A. labrata |
Dendrospyris rhodospyroides |
|
59 |
L.timmsi ? |
Cyrtocapsella japonica |
|
60 |
L. aegles |
Saccospyris antarctica |
|
61 |
A.challengerae |
Prunopyle tetrapila |
|
62 |
A. cylindrica |
Heliodiscus sp. A |
|
63 |
H. vema |
Actinomma sp. A |
|
64 |
D. spongiosa |
Trissocylid sp. A |
|
65 |
P. c. trilobum |
Corythomelissa horrida |
|
66 |
T. antarctica |
Stylosphaera sp. A |
|
67 |
C. davisiana |
Stichophormis sp. |
|
68 |
Eucyrtidium punctatum |
||
69 |
Lychnocanoma sp. B |
||
70 |
Pterocanium sp. |
||
71 |
Lamprocyrtis ? cf. hannai |
||
72 |
Eucyrtidium sp. A |
||
73 |
Cycladophora humerus |
||
74 |
Dendrospyris megalocephalis |
||
75 |
Antarctissa deflandrei |
||
76 |
Actinomma golownini |
||
77 |
Spongomelissa dilli |
||
78 |
Lithocarpium polycantha |
||
79 |
Stylodictya validispina |
||
80 |
Cornutella clathrata |
||
81 |
Cycladophora spongothorax |