Biogeography - mapping of Neptune Occurrences

Alternatives - space-time plot ::Range chart plot
Fossil Group: Taxon to plot:
Age min: Age max: Lat max/N: Lat min/S:
Species threshold: Age anomaly threshold:
Taxon plotted: Discoaster cruciformis

Basemap is plate-reconstruction from 50Ma (Ypresian), produced using GPlates2.1. Flat blue colour indicates subducted ocean crust, and so areas from which fossil assemblages cannot be recovered.
The palaeolatitudes and longitudes of the sites were calculated separately and there are some discrepancies.
Symbols - all sites with samples in the time interval are plotted as circles, the opacity of the red fill is proportional to % of samples with the taxon. Hover over symbol for caption.

List of sites with samples in the age/latitude bin.
samples - number of samples at the site in the age interval; ocs - number of these samples with the taxon; %freq = ocs/samples*100.
List is sorted by paleolatitude:
nhole leg site p_lat p_long samples ocs %freq
0152_918D15291854.92-22.5300
193_6059360536.51-55.683100
2342_1407A342140736.49-34.441300
3342_1408A342140836.39-33.81500
4342_1410A342141036.3-34.111600
547_398D4739836.27-12.271400
6342_1409A342140936.26-33.81500
7173_1067A173106736.08-13.113300
8173_1069A173106935.98-13.413226
9173_1068A173106835.87-13.186112
1095_6129561235.51-58.439600
11342_1406A342140635.46-38.92500
12160_967E16096726.5726.86100
13198_1209B198120923.92-162.91300
14198_1209A198120923.87-163.26700
1586_5778657723.81-163.471600
16198_1210A198121023.51-162.9900
17198_1210B198121023.51-162.881300
18198_1211A198121123.43-163.3700
19198_1211C198121123.38-163.53300
2077_538A7753823.36-70.9711327
21198_1211B198121123.33-163.88700
22198_1209C198120922.87-162.75500
2377_5407754021.86-72.73400
2458_445584459.2133.811100
2539_354393541.42-33.91700
26159_960C159960-2.52-8.496233
2761_46261462-2.73-161.49200
28159_961A159961-3.16-8.93100
2930_28930289-8.68-171.67100
30115_707C115707-14.353.781000
3140_36340363-26.441.54800
3239_35639356-32.15-27.691900
33208_1262A2081262-34.06-7.59200
34208_1262C2081262-34.07-7.64100
35208_1262B2081262-34.08-7.66100
36208_1267A2081267-34.24-6.9300
37208_1267B2081267-34.53-7.06300
38208_1266B2081266-35.09-6.48100
39208_1263C2081263-35.13-6.01600
40208_1266A2081266-35.25-6.56100
4173_52473524-36.51-5.76300
42123_765C123765-37.38104.85500
43123_766A123766-40.5995.691000
44122_762C122762-40.7897.935300
45120_747A120747-52.3273.4915427
46120_747C120747-52.3373.498225
47114_699A114699-54.41-13.811200
48120_748C120748-55.9775.727114
49113_689B113689-64.563.78700
50113_690B113690-65.312.131700

The table below lists all occurrence records that meet the search criteria.
The Leg entries are linked to the contents pages for the DSDP/ODP scientific results volume for the Leg. This is the most likely source of the data, except for the most recent legs where resuts may have been published in regular scientific journals - see also source ref.
ab - abundance of the taxon inthe sample; p-lat & p-long - paleolatitude and paleolongitude
N species - number of speices in sample; anomaly score - proportion of taxa which are within range.
nLeg source ref Hole core section cm depth ab sample age p-lat p-long flag N species anomaly score original_id taxon
0120Aubry, M.-P., ...1992120_747A19162171.12F3055850.0317-52.3273.49160.875Discoaster cruciformisDiscoaster cruciformis
1120Aubry, M.-P., ...1992120_747A191111171.61R3056150.9671-52.5473.43111.000Discoaster cruciformisDiscoaster cruciformis
2120Aubry, M.-P., ...1992120_747A191131171.81R3056351.3489-52.6273.40140.929Discoaster cruciformisDiscoaster cruciformis
3120Aubry, M.-P., ...1992120_747A191146171.97R3056551.6543-52.7173.38140.857Discoaster cruciformisDiscoaster cruciformis
4120...120_747C2428173.28F3075748.8709-52.3873.45190.947Discoaster cruciformisDiscoaster cruciformis
5120...120_747C2458173.58F3075950.0387-52.3373.49140.929Discoaster cruciformisDiscoaster cruciformis
6120...120_748C1090262.36R3112948.9881-55.9775.72150.800Discoaster cruciformisDiscoaster cruciformis
7159Shafik, S., Wat...1998159_960C189940152.11VR4330350.0112-2.97-8.8961.000Discoaster cruciformisDiscoaster cruciformis
8159Shafik, S., Wat...1998159_960C199934160.04R4330451.5844-3.02-8.71110.909Discoaster cruciformisDiscoaster cruciformis
9173McGonigal, Kris...2001173_1068A63121763.81R6053152.699635.34-13.54210.810Discoaster cruciformisDiscoaster cruciformis
10173McGonigal, Kris...2001173_1069A51122758.62R6082549.403935.49-14.89150.867Discoaster cruciformisDiscoaster cruciformis
11173McGonigal, Kris...2001173_1069A5911759.58R6082949.515935.47-14.89180.944Discoaster cruciformisDiscoaster cruciformis
1277...77_538A184134160.34R2066346.363621.99-74.38220.955Discoaster cruciformisDiscoaster cruciformis
1377...77_538A18652162.52R2066547.002321.92-74.13161.000Discoaster cruciformisDiscoaster cruciformis
1477...77_538A192117166.67R2066748.218221.85-73.65211.000Discoaster cruciformisDiscoaster cruciformis