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: Lophodolithus rotundus

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
0342_1408A342140837.17-39.811800
1342_1407A342140737.13-39.77800
247_398D4739837.07-14.191400
3342_1410A342141037.01-39.221200
4342_1409A342140936.99-39.3700
5173_1067A173106736.69-152700
6173_1069A173106936.57-15.13900
7342_1406A342140636.19-41.65700
893_6059360536.06-61.71100
9198_1209A198120924.43-168.09500
10198_1209C198120924.42-168.03200
1186_5778657724.1-167.62200
12198_1210B198121023.94-167.93600
13198_1210A198121023.86-167.49400
14198_1211A198121123.6-167.35300
1577_538A7753822.29-75.5700
1677_5407754022.02-74.05100
17125_786A12578613.19132.14400
1858_4455844510.53133.03500
1961_46261462-1.62-166.14400
2030_28930289-8.25-173.79300
2122_21722217-9.3779.13200
22115_709C115709-9.9255.031600
23115_707C115707-13.6253.64600
24115_713A115713-17.7458.491200
2540_36340363-25.481.89500
2639_35639356-31.46-29.9613323
27208_1267A2081267-33.55-6.52100
28208_1267B2081267-33.85-6.68100
29123_765C123765-37.38104.54400
30122_762C122762-40.897.592500
31114_699A114699-54.27-14.95200
32113_689B113689-64.313.321100
33113_690B113690-65.011.57500

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
039Perch-Nielsen, ...197739_3568170162.20R1942745.2664-31.88-29.32400.975Lophodolithus rotundusLophodolithus rotundus
139Perch-Nielsen, ...197739_3568271163.71R1942845.3344-31.90-29.30360.972Lophodolithus rotundusLophodolithus rotundus
239Perch-Nielsen, ...197739_356890164.10R1942945.3519-31.90-29.29140.929Lophodolithus rotundusLophodolithus rotundus