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: Broinsonia galloisii

Basemap is plate-reconstruction from 114Ma (Aptian), 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
079_547A7954725.76-1.79400
179_5457954525.722.756900
241_3704137025.371.13700
344_390A4439022.48-31.75100
441_367413678.93-17.37800
5198_1207B19812076.41-118.262428
6198_1212B19812121.78-136.23300
7198_1214A19812141.16-122.742700
8198_1213A19812131.01-133.2611436
9198_1213B19812130.17-124.66800
10129_800A129800-7.94-134.551600
1162_46362463-10.8-118.08700
12123_765C123765-39.55104.654200
13123_766A123766-40.3194.44200
14122_762C122762-41.0696.481100
15122_763B122763-42.9996.156800
1636_327A36327-53.61-3.352600
1771_51171511-53.75-3.314200
1826_25826258-55.7187.92700

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
0198Bown, Paul R (...2005198_1207B2790402.631-252034100.82556.41-131.70501.000Broinsonia galloisiiBroinsonia galloisii
1198Bown, Paul R (...2005198_1207B3290450.331-252039107.20175.90-127.74450.978Broinsonia galloisiiBroinsonia galloisii
2198Bown, Paul R (...2005198_1213A119095.14?1-252252100.79080.99-137.14371.000Broinsonia galloisiiBroinsonia galloisii
3198Bown, Paul R (...2005198_1213A1390114.991-252254101.39370.94-136.74421.000Broinsonia galloisiiBroinsonia galloisii
4198Bown, Paul R (...2005198_1213A1490125.001-252255101.69780.92-136.54451.000Broinsonia galloisiiBroinsonia galloisii
5198Bown, Paul R (...2005198_1213A1990170.241-252260103.09770.81-135.61521.000Broinsonia galloisiiBroinsonia galloisii