Smithsonian Open Access Explorer

Name: Smithsonian Open Access Explorer
Creator: American Culture Club
License: Open Access items are CC0 where marked; record rights statements remain authoritative.

Smithsonian Open Access Explorer organizes records from Smithsonian Open Access API into a static table for transparent comparison. It preserves official source links and dates, marks missing enrichment, and adds deterministic grouping, change, recency, trend, or significance fields only where the documented inputs support them, without recommendations or unsupported claims.

Records: 5,000
Last changed: 08/29/2026
Update schedule: 18 12 3 * * UTC
Coverage: 01/01/1190–10/03/2048
Method: Methodology

Record	Record Date	Vuga Group	Change Status	Recency Days
Polycelis tenuis	01/01/1930	NMNHINV	unchanged	35,304.43
Nephtys ferruginea	02/11/1963	NMNHINV	unchanged	23,210.43
Procotyla fluviatilis	07/21/1968	NMNHINV	unchanged	21,223.43
Leanira quatrefagesi	12/29/1962	NMNHINV	unchanged	23,254.43
Aeolosoma headleyi	11/27/1940	NMNHINV	unchanged	31,321.43
Phallodrilus rectisetosus deminutius	08/14/1975	NMNHINV	unchanged	18,643.43
Saccoglossus kowalevskii	01/01/1882	NMNHINV	unchanged	52,835.43
Saccoglossus kowalevskii	08/01/1874	NMNHINV	unchanged	55,545.43
Phascolion strombi	09/02/1878	NMNHINV	unchanged	54,052.43
Phascolion strombi	09/03/1873	NMNHINV	unchanged	55,877.43
Barrukia cristata	02/22/1948	NMNHINV	unchanged	28,678.43
Anaitides patagonica	02/26/1969	NMNHINV	unchanged	21,003.43
Pista cristata	02/28/1963	NMNHINV	unchanged	23,193.43
Amphiporus lactifloreus	08/23/1948	NMNHINV	unchanged	28,495.43
Flabelligella papillata	12/06/1980	NMNHINV	unchanged	16,702.43
Gaidius brevispinus	04/22/1955	NMNHINV	unchanged	26,062.43
Staurotheca vanhoeffeni	03/15/1964	NMNHINV	unchanged	22,812.43
Heterocucumis denticulata	01/16/1967	NMNHINV	unchanged	21,775.43
Streptocephalus sealii	06/26/2001	NMNHINV	unchanged	9,195.43
Ellisella sp.	—	NMNHINV	unchanged	—
Micrura sp.	09/23/1985	NMNHINV	unchanged	14,950.43
Serpulorbis margaritaceus	—	NMNHINV	unchanged	—
Psolicrux coatsi	01/07/1972	NMNHINV	unchanged	19,958.43
Exallopus blakei	11/12/1983	NMNHINV	unchanged	15,631.43
Jasmineira filiformis	11/12/1984	NMNHINV	unchanged	15,265.43
Rocinela angustata	09/13/2001	NMNHINV	unchanged	9,116.43
Enoplus sp.	12/29/1970	NMNHINV	unchanged	20,332.43
Ecteinascidia styeloides	10/31/1991	NMNHINV	unchanged	12,721.43
Anobothrus gracilis	07/06/1985	NMNHINV	unchanged	15,029.43
Psolicrux coatsi	12/21/1971	NMNHINV	unchanged	19,975.43
Bourneotrochus stellulatus	03/01/1999	NMNHINV	unchanged	10,043.43
Schistomeringos rudolphi anoculata	11/19/1983	NMNHINV	unchanged	15,624.43
Polygordius sp.	05/10/1982	NMNHINV	unchanged	16,182.43
Amphicteis vestis	04/28/1986	NMNHINV	unchanged	14,733.43
Polygordius sp.	02/10/1982	NMNHINV	unchanged	16,271.43
Madracis myriaster	—	NMNHINV	unchanged	—
Dendrobathypathes sp.	09/03/2001	NMNHINV	unchanged	9,126.43
Leptodius nudipes	05/01/1992	NMNHINV	unchanged	12,538.43
Lepidonotus squamatus	06/20/1945	NMNHINV	unchanged	29,655.43
Lepidonotus squamatus angustus	01/01/1882	NMNHINV	unchanged	52,835.43
Polyodontes sp.	07/24/1965	NMNHINV	unchanged	22,316.43
Ehlersileanira simplex	01/20/1899	NMNHINV	unchanged	46,607.43
Hyalinoecia juvenalis	01/26/1889	NMNHINV	unchanged	50,253.43
Lumbrineris fragilis	—	NMNHINV	unchanged	—
Lumbrineris coccinea	10/18/1884	NMNHINV	unchanged	51,814.43
Nothria iridescens	05/20/1904	NMNHINV	unchanged	44,661.43
Magelona sp.	11/09/1974	NMNHINV	unchanged	18,921.43
Mesochaetopterus minutus	12/02/1978	NMNHINV	unchanged	17,437.43
Sternaspis scutata	07/15/1938	NMNHINV	unchanged	32,187.43
Heteromastus sp.	08/06/1959	NMNHINV	unchanged	24,495.43