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 martinii

Basemap is plate-reconstruction from 44Ma (Lutetian), 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_918D15291858.15-28.08900
1105_647A10564749.29-34.494400
2145_883B14588341.64-156.5400
347_398D4739837.59-14.032500
4342_1408A342140837.58-38.722900
5342_1410A342141037.52-38.132400
6342_1409A342140937.28-38.091500
7342_1407A342140737.18-38.59900
8173_1067A173106736.92-14.863100
9173_1069A173106936.57-15.05900
10342_1406A342140636.57-40.39800
11342_1404A342140436.15-42.2200
1293_6059360536.06-60.371100
13160_967E1609672827.29500
14171_1052A171105227.89-67.35500
15198_1209A198120924.81-166.421600
16198_1209C198120924.56-167.83400
1786_5778657724.41-167.11300
18198_1210A198121024.34-166.62800
19198_1210B198121024.29-166.441000
20198_1211C198121124.05-169.13300
21198_1211A198121123.6-166.75300
2277_538A7753822.56-74.621200
2377_5407754022.02-74.05100
24125_786A12578613.73134.02800
2558_4455844511.04134.9800
2661_46261462-1.23-164.71600
2730_28930289-7.98-172.74400
28115_709C115709-9.3455.111700
2922_21722217-9.3779.13200
30115_707C115707-13.6253.64600
3122_21622216-15.5477.31200
32115_713A115713-16.458.943400
3340_36340363-25.481.89500
3439_35639356-31.46-29.291300
35208_1267A2081267-33.55-6.52100
36208_1267B2081267-33.85-6.68100
37123_765C123765-36.79104.54600
38122_762C122762-40.897.592500
3990_588C90588-42.71159.28400
40177_1090B1771090-47.850.721400
41114_699A114699-53.3-14.89800
42120_748C120748-56.4675.24100
43120_749B120749-56.7672.78400
44113_689B113689-64.153.651700
45113_690B113690-64.821.611700

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