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: Arkhangelskiella confusa

Basemap is plate-reconstruction from 78Ma (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_1407A342140737.09-26.25400
147_398D4739835.32-8.69100
2173_1069A173106935.2-9.76000
3173_1068A173106835.14-9.564600
444_390A4439030.74-54.111200
5160_967E16096722.0630.055800
6198_1212A198121216.9-156.51100
7198_1209A198120916.84-155.681500
8198_1212B198121216.77-156.425900
9198_1210A198121016.64-156.092000
10198_1207A198120716.4-146.543100
11198_1211A198121116.38-156.422000
12198_1207B198120716.14-146.292800
13198_1209C198120915.93-1552500
14198_1210B198121015.44-155.1711100
15198_1208A198120814.74-149.964300
16129_800A1298005.25-161.34400
17198_1213A19812133.79-143.88800
18129_801B1298011.72-158.581500
1917_171171710.92-127.395800
2017_17017170-9.23-137.561100
21130_807C130807-11.6-162.055800
2239_35639356-31.61-24.335600
2339_35739357-33.36-17.734500
24208_1267A2081267-35.43-9.45200
25208_1267B2081267-35.43-9.45200
2673_52473524-37.1-7.842900
27123_765C123765-42.55105.13900
28123_766A123766-45.998.431800
29122_762C122762-46.2100.8713300
30122_763B122763-46.4397.374400
3136_327A36327-54.1-30.843300
3271_51171511-54.32-25.667300
3326_25826258-57.4589.181900
3426_258A26258-59.2692.56900

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