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 okadai

Basemap is plate-reconstruction from 58Ma (Thanetian), 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
093_6059360537.87-52.01700
1342_1408A342140836.93-30.08200
2342_1407A342140736.91-30.18200
3342_1409A342140936.68-29.77300
4342_1406A342140636.14-31.94400
547_398D4739835.54-10.22500
6173_1069A173106935.38-11.56400
7173_1068A173106835.32-11.21000
877_5407754025.12-67.15100
9198_1209A198120921.1-160.6411100
1086_5778657721.03-160.647457
11198_1209C198120921-159.834125
12198_1210B198121020.69-160.15120
13198_1211A198121120.39-160.482150
14198_1211C198121120.37-161.06100
15198_1210A198121020.23-160.14100
1639_354393542.21-29.95300
17159_961A159961-3.32-8.32300
1840_36340363-27.770.74500
1922_21722217-28.0176.11100
2039_35639356-31.8-26.011100
21208_1262B2081262-34.29-8.56100
22208_1267A2081267-35.19-8.52100
23208_1266A2081266-35.72-7.9100
24208_1266B2081266-35.72-7.9200
25208_1266C2081266-35.72-7.9200
2673_52473524-36.8-6.81800
27123_766A123766-44.1497.7500
28122_762C122762-44.2399.962000
29114_700B114700-54.89-13.79300
30120_748C120748-58.7875.26400
31113_689B113689-64.36-1.04300
32113_690B113690-64.97-2.911800

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
0198Bralower, Timot...2005198_1209A22546204.66F5501957.306921.10-160.64271.000Discoaster okadaiDiscoaster okadai
1198Bralower, Timot...2005198_1209C12350206.00R5502157.557321.00-160.48270.963Discoaster okadaiDiscoaster okadai
2198Bralower, Timot...2005198_1210B212100192.20R4530357.366020.69-160.90240.958Discoaster okadaiDiscoaster okadai
3198Bralower, Timot...2005198_1211A14245118.75R4558057.701720.39-161.09180.889Discoaster okadaiDiscoaster okadai
486Monechi, S. ...198586_57710312087.00C922357.528820.91-161.24210.952Discoaster okadaiDiscoaster okadai
586Monechi, S. ...198586_5771045087.80F922457.753220.82-161.09231.000Discoaster okadaiDiscoaster okadai
686Monechi, S. ...198586_57710412088.50F922557.935820.75-160.97210.952Discoaster okadaiDiscoaster okadai
786Monechi, S. ...198586_5771052089.00R922658.066120.70-160.89221.000Discoaster okadaiDiscoaster okadai