Biogeography - mapping of Neptune Occurrences

Alternatives - space-time plot ::Range chart plot
Fossil Group: Taxon to plot:
Age min: Age max:
Species threshold: Age anomaly threshold:
Taxon plotted: Amphizygus minimus

Basemap is plate-reconstruction from 80Ma (Campanian), 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
0342_1407A342140736.5-20.98200
1173_1069A173106935-8.21600
244_390A4439029.88-50.11100
3160_967E16096721.2131.471000
4198_1207A198120715.77-142.862215
5198_1207B198120715.74-138.1521210
6198_1208A198120814.74-144.574349
7198_1212B198121211.04-150.54500
8198_1210B198121010.96-147.812800
9198_1213A19812133.79-143.75300
10129_800A129800-4.12-151.02100
1117_17117171-4.71-114.631400
12129_801B129801-5.07-148.23500
1317_17017170-11.9-131.09800
14130_807C130807-16.92-157.291200
1539_35639356-31.51-16.441900
1639_35739357-33.01-9.551900
17123_765C123765-42.23105.13900
18122_762C122762-44.2197.615900
19122_763B122763-44.7897.373800
20123_766A123766-45.3695.11200
2136_327A36327-54.09-17.35600
2271_51171511-54.27-18.346600
2326_25826258-57.1489.18700
2426_258A26258-57.1592.56700

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
0198Lees, Jackie A;...2005198_1207A24690216.00F5202579.396013.00-142.86530.981Amphizygus minimusAmphizygus minimus
1198Lees, Jackie A;...2005198_1207B890220.22R5207980.068512.45-142.23430.953Amphizygus minimusAmphizygus minimus
2198Lees, Jackie A;...2005198_1207B9185230.65R5208080.984411.70-141.36391.000Amphizygus minimusAmphizygus minimus
3198Lees, Jackie A;...2005198_1208A40570370.10R5699781.074610.70-145.24460.957Amphizygus minimusAmphizygus minimus
4198Lees, Jackie A;...2005198_1208A405118370.58R5699881.131510.65-145.18401.000Amphizygus minimusAmphizygus minimus
5198Lees, Jackie A;...2005198_1208A411120374.30R5700581.572610.30-144.76430.977Amphizygus minimusAmphizygus minimus
6198Lees, Jackie A;...2005198_1208A4120374.60R5700681.608110.27-144.73340.971Amphizygus minimusAmphizygus minimus