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 mediosus

Basemap is plate-reconstruction from 56Ma (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_6059360537.97-51.73271141
1342_1407A342140736.99-29.611100
2342_1408A342140836.93-30.081200
3342_1409A342140936.68-29.77900
4342_1406A342140636.2-31.54600
547_398D4739835.57-10.221600
6173_1069A173106935.39-11.561100
7173_1067A173106735.34-12.51700
8173_1068A173106835.34-10.824000
977_5407754025.12-67.15100
10198_1209C198120921.95-159.831100
1186_5778657721.89-160.321800
12198_1210B198121021.67-160.1900
13198_1210A198121021.62-159.88600
14198_1211A198121121.36-160.48500
15198_1209A198120921.27-159.7400
16198_1211C198121120.86-161.06400
17207_1260B20712605.4-40.525700
1839_354393542.21-29.951200
19159_961A159961-3.21-8.32700
20115_707C115707-16.6153.91200
2122_21722217-26.0976.27200
2240_36340363-27.470.98900
2322_21622216-30.274100
2439_35639356-31.78-25.961200
25208_1262A2081262-34.16-7.98300
26208_1262B2081262-34.29-8.56100
27208_1267A2081267-35.09-8.01300
28208_1266B2081266-35.61-7.42600
29208_1266A2081266-35.64-7.57300
30208_1263C2081263-35.69-7.14100
31208_1266C2081266-35.72-7.9200
3273_52473524-36.67-6.291600
33123_765C123765-40.76106.67100
34123_766A123766-42.5997.771400
35122_762C122762-42.75100.115800
36114_700B114700-54.89-13.68500
37114_699A114699-54.95-14.01300
38120_748C120748-57.475.481600
39113_689B113689-64.360.9614321
40113_690B113690-64.95-0.641615

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
0113Pospichal, J.J....1990113_689B22530203.80F2651554.9783-64.590.72170.941Discoaster mediosusDiscoaster mediosus
1113Pospichal, J.J....1990113_689B225130204.80F2651655.1400-64.580.59161.000Discoaster mediosusDiscoaster mediosus
2113Pospichal, J.J....1990113_689B23129207.49F2646455.5749-64.560.26290.966Discoaster mediosusDiscoaster mediosus
3113Pospichal, J.J....1990113_690B18428161.98P2688954.3007-65.30-0.60220.909Discoaster mediosusDiscoaster mediosus
4113Pospichal, J.J....1990113_690B18628164.98F2689154.6710-65.28-0.89210.857Discoaster mediosusDiscoaster mediosus
5113Pospichal, J.J....1990113_690B1890166.65R2689254.8771-65.27-1.05190.947Discoaster mediosusDiscoaster mediosus
6113Pospichal, J.J....1990113_690B19329170.19C2689655.3141-65.24-1.40250.800Discoaster mediosusDiscoaster mediosus
7113Pospichal, J.J....1990113_690B19428171.68P2689755.4980-65.22-1.55230.957Discoaster mediosusDiscoaster mediosus
8113Pospichal, J.J....1990113_690B19528173.18R2689855.6831-65.21-1.69220.955Discoaster mediosusDiscoaster mediosus
993...93_60543350551.40R2123154.570336.83-54.86250.960Discoaster mediosusDiscoaster mediosus
1093...93_60543450552.90R2123254.707436.87-54.75250.880Discoaster mediosusDiscoaster mediosus
1193...93_605435110555.00R2123354.899336.93-54.59210.952Discoaster mediosusDiscoaster mediosus
1293...93_605436110556.50T2123455.036436.98-54.48230.913Discoaster mediosusDiscoaster mediosus
1393...93_60544150558.00R2123555.173537.02-54.37250.960Discoaster mediosusDiscoaster mediosus
1493...93_60544250559.50T2123655.310637.06-54.26150.933Discoaster mediosusDiscoaster mediosus
1593...93_60544250559.50R2123755.310637.06-54.26201.000Discoaster mediosusDiscoaster mediosus
1693...93_60544650565.50T2123855.817037.21-53.85171.000Discoaster mediosusDiscoaster mediosus
1793...93_60544650565.50R2123955.817037.21-53.85210.952Discoaster mediosusDiscoaster mediosus
1893...93_605452110569.70T2124056.041737.27-53.68160.938Discoaster mediosusDiscoaster mediosus
1993...93_605455110574.20T2124156.282537.33-53.52111.000Discoaster mediosusDiscoaster mediosus