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: Nannoconus bonetii

Basemap is plate-reconstruction from 130Ma (Barremian), 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_5457954521.352.75100
141_3704137019.691.462700
276_534A7653415.98-24.2617411
341_367413678.24-17.37900
4198_1207B19812073.17-119.94400
5198_1214A1981214-0.47-122.74700
6198_1213B1981213-1.98-124.662000
7123_766A123766-40.6189.956100
8123_765C123765-40.9798.031500
971_51171511-56-5.02100
1036_327A36327-56.08-4.82200

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
076...76_534A651261107.76R35336134.770013.92-23.28211.000Nannoconus bonetiiNannoconus bonetii