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Taxonomy
Clementia was named by Gray (1847) [Sepkoski's age data: T Eo-l R  Sepkoski's reference number: 914]. It is extant. 
It was reranked as Venus (Clementia) by Vredenburg (1928).
It was assigned to Venus by Vredenburg (1928); to Dosiniinae by Glenn (1904), Gardner (1947); to Clementiinae by Vokes (1980), Woodring (1982), Perrilliat (1992), Ward (1992), Pacaud and Le Renard (1995); to Veneridae by Mukerjee (1939), Lamprell and Whitehead (1992), Perrilliat (1994), Todd (2001); and to Veneroida by Sepkoski (2002).
It was reranked as Venus (Clementia) by Vredenburg (1928).
It was assigned to Venus by Vredenburg (1928); to Dosiniinae by Glenn (1904), Gardner (1947); to Clementiinae by Vokes (1980), Woodring (1982), Perrilliat (1992), Ward (1992), Pacaud and Le Renard (1995); to Veneridae by Mukerjee (1939), Lamprell and Whitehead (1992), Perrilliat (1994), Todd (2001); and to Veneroida by Sepkoski (2002).
  Species
  
  Species lacking formal opinion data
  
Synonymy list
| Year | Name and author | 
|---|---|
| 1847 | Clementia Gray p. 184 | 
| 1904 | Clementia Glenn p. 315 | 
| 1928 | Venus (Clementia) Vredenburg p. 455 | 
| 1939 | Clementia Mukerjee p. 23 | 
| 1947 | Clementia Gardner pp. 152, 154 | 
| 1980 | Clementia Vokes p. 174 | 
| 1982 | Clementia Woodring p. 697 | 
| 1992 | Clementia Lamprell and Whitehead p. 150 | 
| 1992 | Clementia Perrilliat p. 16 | 
| 1992 | Clementia Ward p. 102 | 
| 1994 | Clementia Perrilliat p. 239 | 
| 1995 | Clementia Pacaud and Le Renard p. 183 | 
| 2001 | Clementia Todd | 
| 2002 | Clementia Sepkoski | 
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. Clementia Gray 1847
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  Subg. †Clementia (Clementia) Gray 1842
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   †Clementia (Clementia) dariena Conrad 1855
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   †Clementia dariena vetula Woodring 1926
  Invalid names: Clementia brasiliana Maury 1925 [synonym]
   †Clementia (Clementia) deshayesi Cossmann 1886
   †Clementia (Clementia) inoceriformis Wagner 1839
   Clementia (Clementia) papyracea Gray 1825
   †Clementia (Clementia) parinensis Olsson 1928
   †Clementia (Clementia) protopapyracea Vredenburg 1928
   †Clementia (Clementia) restinensis Olsson 1928
   †Clementia dariena rabelli Maury 1920
   †Venus (Clementia) papyracea grandis Vredenburg 1928
  Subg. Clementia (Egesta)
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   †Clementia (Egesta) grayi Dall 1900
   †Clementia (Egesta) pertenuis Gabb 1864
   †Clementia (Egesta) peruviana Olsson 1928
   †Egesta peruviana Olsson 1928
   †Clementia conradiana Anderson 1905
   †Clementia elongata Wiedey 1928
   †Clementia fischeri Abrard 1942
   †Clementia inequalis Wiedey 1928
  
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004, Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils:  base of the Late/Upper Aptian to the top of the Late/Upper Pleistocene or 119.57000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 113.2 Ma
Minimum age of oldest fossil (stem group age): 113.2 Ma
Collections (261 total)
| Time interval | Ma | Country or state | Original ID and collection number | 
|---|---|---|---|
| Late/Upper Aptian | Colombia | C. ricordeana (221846) | |
| Late/Upper Cretaceous | USA (California) | Venus pertenuis (193034) | |
| Early/Lower Eocene | Curaçao | C. parinensis (88277) | |
| Lutetian | United Kingdom (England) | C. deshayesi (8124 8125) | |
| Bartonian | Curaçao | C. peruviana (60088 60089) | |
| Bartonian | Peru (Piura) | C. parinensis (88362 88364 88365 88366) C. parinensis, C. restinensis (88370) C. peruviana (52526 52527 52531 52536) | |
| Late/Upper Eocene | Venezuela | C. dariena (42791 42792 134866 134867) | |
| Late/Upper Eocene | Colombia | C. peruviana (42789) | |
| Late/Upper Eocene | Peru (Piura) | C. peruviana (52523 55432 88359 88367 88391) | |
| Late/Upper Eocene | Colombia (Bolivar) | C. vetula (3315) | |
| Priabonian | Peru (Piura) | C. peruviana (55431) | |
| Early/Lower Oligocene | Pakistan | C. papyracea (77453) Venus protopapyracea (77158) | |
| Early/Lower Oligocene | Puerto Rico | C. rabelli (80189 80190 80191 80192 80193 80194) | |
| Early/Lower Oligocene | Peru (Piura) | C. peruviana (55433 55441) | |
| Early/Lower Oligocene - Late/Upper Oligocene | Ecuador (Guayas) | C. peruviana (61201) | |
| Oligocene | Venezuela (Falcon) | C. dariena (61213) | |
| Chattian | USA (California) | C. pertenuis (52418) Venus pertenuis (11601) | |
| Late/Upper Oligocene | Peru (Piura) | C. peruviana (64559) | |
| Late/Upper Oligocene | USA (California) | C. pertenuis (72406 72407 72408 219727 219730 219733 219755) | |
| Late/Upper Oligocene | Colombia (La Guajira) | C. peruviana (42770) | |
| Late/Upper Oligocene | Peru | C. peruviana (42794) | |
| Aquitanian | Panama | C. dariena (93039) | |
| Early/Lower Miocene | USA (California) | Clementa pertenuis (238190) C. conradiana (196138) C. inequalis (220074) C. pertenuis (71215 71216 71218 71222 71223 71226 71228 91374 94866 203554 237907 237917 238137 238142 238143 238144 238163 238166 238178 238179 238180 238191 238214 238239 238241 238242 238248 238253 238259 238261) | |
| Early/Lower Miocene | Ecuador (Manabi) | C. dariena (60769) | |
| Early/Lower Miocene | Ecuador (Guayas) | C. dariena (61061 61065) | |
| Early/Lower Miocene | India | C. papyracea (76574) C. protopapyracea (72084) C. sp., C. papyracea, C. protopapyracea (78641) | |
| Early/Lower Miocene | Iran | C. papyracea (79067) | |
| Early/Lower Miocene | Brazil (Para) | C. brasiliana (60984) C. dariena (65162 112580 112582 112590) | |
| Early/Lower Miocene | Pakistan | C. papyracea (77459) Venus papyracea (77172 77400 77432) | |
| Early/Lower Miocene | USA (New Jersey) | C. inoceriformis (59335) | |
| Early/Lower Miocene | Mexico (Tamaulipas) | C. grayi (43071 43074) | |
| Early/Lower Miocene | Peru (Tumbes) | C. dariena (58999 59001) | |
| Early/Lower Miocene | Somalia | Venus papyracea (78953 79079 79098) | |
| Early/Lower Miocene | Peru | C. dariena (66141 66178 93748) | |
| Miocene | Venezuela (Falcon) | C. dariena (135496) | |
| Miocene | Indonesia | C. papyracea (81717) | |
| Burdigalian | Venezuela (Falcon) | C. dariena (60144 60703 60705 60707 60708 60710) | |
| Burdigalian | USA (Delaware) | C. grayi (18579) | |
| Burdigalian | USA (Florida) | C. grayi (42424 42482 92502 92503) | |
| Burdigalian | Colombia (La Guajira) | C. dariena (156327 156691 156751 156752 156753 156754 160776 161892) | |
| Burdigalian | Venezuela (Falcón) | C. dariena (179723) | |
| Burdigalian | Saudi Arabia | C. sp. (47069 47073) | |
| Barstovian - Hemphillian | Mexico (Baja California Sur) | C. conradiana (18731) | |
| Langhian | Japan (Hokkaido) | C. iizukai (77918) | |
| Langhian | Mexico (Baja California) | C. sp. (52183) | |
| Langhian | USA (California) | C. conradiana (237565 237573 237575) | |
| Langhian | Colombia (La Guajira) | C. dariena (157830) | |
| Langhian - Serravallian | Brazil (Para) | C. dariena (58454) | |
| Middle Miocene | Mexico (Michoacan) | C. dariena (66162 66166) | |
| Middle Miocene | Somalia | Venus papyracea (79076 79077) | |
| Middle Miocene | USA (California) | C. conradiana (44933 44937) C. elongata (220066) C. pertenuis (44940 44965 44982 44988) C. pertenuis, C. conradiana (44934) | |
| Middle Miocene | India | C. papracea, C. protopapyracea (78614) | |
| Middle Miocene | Ecuador (Guayas) | C. dariena (61086 61087 61093) | |
| Middle Miocene | Japan | C. japonica, C. sp. (70306 77742) | |
| Langhian - Messinian | USA (California) | C. sp. (167649) | |
| Serravallian | USA (Maryland) | C. inoceriformis (70846 70847) C. sp. (79107) | |
| Serravallian | USA (Florida) | C. grayi (42692 42886 42891 43028 111204 136943) | |
| Tortonian | Venezuela (Falcon) | C. dariena (61024 61025 61029 135504) | |
| Tortonian | Panama (Colon) | C. dariena (142922) C. sp. (79783 79790 79985 79987) | |
| Tortonian | Panama (Darien) | C. sp. (136122) | |
| Tortonian | USA (Maryland) | C. inoceriformis (70849 70853) | |
| Tortonian | Venezuela | C. dariena (130981) | |
| Tortonian | Panama | C. dariena (82119 82121 82124 82125 93145 93147 93150 134661) C. dariensis (82116 82126) C. sp. (136016 145523 145524) | |
| Late/Upper Miocene | Venezuela (Falcon) | C. dariena (61022 61031 61032) | |
| Late/Upper Miocene | Russian Federation | C. sakhalinense (70465) | |
| Late/Upper Miocene | Colombia (Bolívar) | C. dariena (88305 88308 88316) | |
| Late/Upper Miocene | Pakistan | Venus papyracea (77133) Venus papyracea, Venus papyracea (77154) | |
| Late/Upper Miocene | Trinidad and Tobago | C. dariena (81976) | |
| Late/Upper Miocene | Colombia | C. dariena (88296 88297 97682 97692 131219 131220) | |
| Late/Upper Miocene | USA (Maryland) | C. inoceriformis (51722 51727 59303 59304 59305 69032) | |
| Late/Upper Miocene | USA (California) | C. brioniana (44423) C. pertenuis (44425) | |
| Late/Upper Miocene | Indonesia | C. papyracea (70098 70099 70103) | |
| Late/Upper Miocene | Philippines | C. papyracea (70138) | |
| Late/Upper Miocene | Iran | C. papyracea (79065) | |
| Tortonian - Zanclean | USA (Florida) | C. inoceriformis (79965) | |
| Messinian | Japan | C. papyracea (161784) | |
| Messinian - Zanclean | Dominican Republic | C. sp. (75038) | |
| Early/Lower Pliocene | Japan | C. vatheleti (96674 96675) | |
| Early/Lower Pliocene | Pakistan | Venus papyracea, Venus papyracea (77398) | |
| Pliocene | Japan | C. papyracea (45507) | |
| Pliocene | India | C. papyracea (77658) | |
| Pliocene | Pakistan | C. papyracea (55398 55399 55400) | |
| Pliocene | Ecuador (Manabi) | C. solida (51886) | |
| Pliocene | Indonesia | C. papyracea (70123 84523) | |
| Pliocene | Philippines (Tayabas) | C. papyracea (41529) | |
| Pliocene - Pleistocene | Malaysia | C. papyracea (72096) | |
| Late/Upper Pliocene | Philippines (Panay) | C. papyracea (41650) | |
| Piacenzian | Costa Rica | C. dariena (134659 134676) | |
| Piacenzian | Japan (Kochi) | C. papyracea (170023) | |
| Pleistocene | Japan | C. vatheleti (96969 97029) | |
| Pleistocene | Pakistan | C. papyracea (55401) | |
| Pleistocene | Eritrea | C. papyracea (101415) | |
| Pleistocene | Egypt | C. papyracea (101634) | |
| Pleistocene - Holocene | Yemen | C. papyracea (55372 55373) | |
| Late/Upper Pleistocene (interglacial) | Kenya | C. papyracea (81094 81100) | |
| Late/Upper Pleistocene | Eritrea | C. papyracea (101543) | |
| Late/Upper Pleistocene | Djibouti | C. cumingi (96788) C. cumingi, C. fischeri (96787) | |
| Late/Upper Pleistocene | Australia (Western Australia) | C. papyracea (63351) |