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: Acarinina pseudosubsphaerica

Basemap is plate-reconstruction from 46Ma (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
0145_883B14588341.63-156.69200
1342_1408A342140837.37-37.935200
247_398D4739837.28-13.884700
3342_1410A342141037.22-36.334000
4342_1407A342140737.18-37.022600
5342_1409A342140937.18-36.322700
6173_1067A173106736.85-14.89400
7342_1406A342140636.32-38.921300
8171_1051A171105127.86-63.492100
9125_786A12578613.44132.88100
10154_929E1549292.71-33.661100
1139_354393541.38-33.98200
12154_925A1549251.02-35.04200
13320_1333A3201333-2-109.21100
1422_21622216-21.2775.47100
1540_36340363-25.71.81400
1639_35639356-31.51-28.1800
1772_516F72516F-32.79-22.146900
18208_1267A2081267-33.55-6.52200
19208_1263A2081263-33.68-5.23900
20208_1267B2081267-33.85-6.68200
21208_1263B2081263-34.07-5.44200
22208_1265A2081265-34.57-5.73200
23208_1266B2081266-35.09-6.48100
24177_1090B1771090-48.20.54100
25114_700B114700-53.64-13.276300
26114_699A114699-54.3-13.813600
27120_748C120748-55.9775.72400
28119_738C119738-60.1879.47400
29119_738B119738-60.379.342400
30113_689B113689-64.243.761400
31113_690B113690-64.982.141100

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