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: Praeglobotruncana algeriana
SELECT DISTINCT nepsample.sample_id, sample_age_ma,hole_id,`paleo_latitude`,`paleo_longitude`, count(DISTINCT nepsample.sample_id) as ocs from nepsample left join `nepsampletaxa` on nepsample.sample_id=nepsampletaxa.sample_id left join neptaxaF on `nepsampletaxa`.`taxon_id` =neptaxaF.`taxon_id` where nepsample.fossil_group='F' AND species_count >5 AND anomaly_score > 0.6 AND taxon_abundance !='0' AND taxon_abundance !='0.' and paleo_latitude is not null and `mtax_name` LIKE :search and sample_age_ma between :agemin and :agemax AND `paleo_latitude` between :latmin and :latmax group by hole_id
age89.9195.94
lat-7060
sPraeglobotruncana algeriana

Basemap is plate-reconstruction from 92Ma (Turonian), 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_1407A342140735.18-16.82500
1171_1050C171105026.75-42.3215853
279_5457954526.36-4.6400
3160_967E16096719.4931.84400
432_305323053.01-142200
562_46362463-9.42-128.226467
6122_762C122762-43.3896.532700
7122_763B122763-44.0196.171900

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
0171Bellier, J.P., ...2000171_1050C2115500.25F4394893.578226.75-42.32111.000Dicarinella algerianaPraeglobotruncana algeriana
1171Bellier, J.P., ...2000171_1050C21127500.47F4394993.595726.74-42.32111.000Dicarinella algerianaPraeglobotruncana algeriana
2171Bellier, J.P., ...2000171_1050C21148500.68F4395093.612326.74-42.31111.000Dicarinella algerianaPraeglobotruncana algeriana
3171Bellier, J.P., ...2000171_1050C21172500.92R4395193.631426.74-42.30121.000Dicarinella algerianaPraeglobotruncana algeriana
4171Bellier, J.P., ...2000171_1050C21193501.13R4395294.817626.53-41.7691.000Dicarinella algerianaPraeglobotruncana algeriana
5171Bellier, J.P., ...2000171_1050C211110501.30F4395394.836926.53-41.7691.000Dicarinella algerianaPraeglobotruncana algeriana
6171Bellier, J.P., ...2000171_1050C21251502.21F4395494.940226.51-41.7191.000Dicarinella algerianaPraeglobotruncana algeriana
7171Bellier, J.P., ...2000171_1050C21359503.79F4395595.119626.48-41.6391.000Dicarinella algerianaPraeglobotruncana algeriana
862Boersma, A. ...198162_46333990290.50I3457593.4284-10.02-127.1491.000Dicarinella algerianaPraeglobotruncana algeriana
962Boersma, A. ...198162_46334263292.63C3457693.6466-10.06-127.05121.000Dicarinella algerianaPraeglobotruncana algeriana
1062Boersma, A. ...198162_4633430293.50C3457793.7357-10.08-127.02111.000Dicarinella algerianaPraeglobotruncana algeriana
1162Boersma, A. ...198162_46335990309.50I3457995.3745-10.36-126.29120.750Dicarinella algerianaPraeglobotruncana algeriana