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Academy of Natural Sciences of Philadelphia Invertebrate Paleontology Collection

Specimen Records: 4,536
Media Records: 1,150
iDigBio Last Ingested Date: 2026-04-23

The Academy of Natural Sciences' Invertebrate Paleontology collection is the oldest of its kind in the country, with a history that dates to the Academy's founding. One of its notable founders, Thomas Say (1787-1834), was a researcher specializing in mollusks, as well as recent and fossilized insects and other invertebrates. The ANSP Invertebrate Paleontology collection is estimated to contain over 1 million specimens, including 5,000 type specimens from more than 100 authors. Many of these authors were early and influential figures in American and British paleontology. Some significant contributors to both the type and general collections include Timothy A. Conrad, William M. Gabb, Henry C. Lea, Isaac Lea, Samuel G. Morton, Axel A. Olsson, Anne Harbison, and Henry A. Pilsbry. The collection is particularly strong in Cenozoic and Cretaceous mollusks from the New World, especially those found in the Atlantic and Gulf Coastal Plains; it also includes Quaternary mollusks from around the globe and Mesozoic specimens from England. Notably, approximately 75% of the collection consists of molluscan fossils.

Contacts

Name Alejandra Martinez-Melo
RoleCollections Manager
Emailam5258@drexel.edu
Name BDIM Account
Rolenone
Emailans_bdim@drexel.edu
Name Alejandra Martinez-Melo
RoleCollections Manager
Emailam5258@drexel.edu
Name ANS BDIM
RoleAdministrator
EmailANS_bdim@drexel.edu
This table shows any data corrections that were performed on this recordset to improve the capabilities of iDigBio Search. The first column represents the correction performed. The last two columns represent the number and percentage of records that were corrected. A complete list of the data quality flags and their descriptions can be found here. Clicking on a data flag name will take you to a search for all records with this flag in this recordset.
FlagRecords With This Flag(%) Percent With This Flag
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99.735
dwc_continent_added  i4519
99.625
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64.683
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64.683
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64.683
dwc_taxonomicstatus_added  i2934
64.683
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64.683
gbif_genericname_added  i2934
64.683
gbif_taxon_corrected  i2934
64.683
gbif_reference_added  i2644
58.289
dwc_multimedia_added  i1776
39.153
dwc_scientificnameauthorship_replaced  i1559
34.369
gbif_vernacularname_added  i1254
27.646
rev_geocode_eez  i1158
25.529
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24.25
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20.635
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18.43
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13.823
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8.995
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4.696
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4.696
dwc_specificepithet_replaced  i72
1.587
geopoint_datum_error  i34
0.75
dwc_order_added  i33
0.728
dwc_specificepithet_added  i12
0.265
dwc_taxonremarks_added  i10
0.22
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dwc_class_replaced  i4
0.088
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0.088
dwc_infraspecificepithet_added  i2
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dwc_infraspecificepithet_replaced  i1
0.022
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rev_geocode_failure  i1
0.022
rev_geocode_lon_sign  i1
0.022