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Taxonomy
Mactromeris was named by Conrad (1868) [Sepkoski's age data: T Ol-l R]. It is extant.
It was reranked as Spisula (Mactromeris) by Stewart (1930), Moore (1976).
It was assigned to Spisula by Stewart (1930), Moore (1976); to Mactridae by Coan et al. (2000); to Veneroida by Sepkoski (2002); and to Mactrinae by Moore (2003).
It was reranked as Spisula (Mactromeris) by Stewart (1930), Moore (1976).
It was assigned to Spisula by Stewart (1930), Moore (1976); to Mactridae by Coan et al. (2000); to Veneroida by Sepkoski (2002); and to Mactrinae by Moore (2003).
Species
M. abbotti, M. acutirostrata, M. aequilateralis, M. albaria, M. beali, M. bisculpturata, M. brevirostrata, M. capayana, M. catilliformis (syn. Spisula mercedensis), M. coalingensis, M. eugenensis, M. gaviotaensis, M. hannibali, M. hemphillii (syn. Spisula cameronis), M. markleyensis, M. mercedensis, M. merriami, M. montereyana, M. mossbeachensis, M. muliniaformis, M. occidentalis, M. pittsburgensis, M. polynyma (syn. Spisula voyi), M. ramonensis, M. rushi, M. sectoris, M. sisquocensis, M. subquadrata, M. tejonensis, M. tenuissima, M. trampasensis, M. voyi, M. weaveri
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1868 | Mactromeris Conrad p. 45 |
| 1930 | Spisula (Mactromeris) Stewart p. 207 |
| 1976 | Spisula (Mactromeris) Moore p. 49 |
| 2000 | Mactromeris Coan et al. p. 451 |
| 2002 | Mactromeris Sepkoski |
| 2003 | Mactromeris Moore |
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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. Mactromeris Conrad 1868
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†Mactra (Spisula) pittsburgensis frustra Tegland 1933
†Mactromeris abbotti Wiedey 1928
†Mactromeris acutirostrata Packard 1916
†Mactromeris aequilateralis Waring 1917
†Mactromeris albaria Conrad 1848
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†Mactromeris albaria selbyensis Packard 1916
†Spisula (Mactromeris) albaria goodspeedi Etherington 1931
†Spisula albaria oregonensis Clark 1925
†Spisula albaria ramonensis Packard 1916
†Spisula albaria scapoosensis Clark 1925
†Mactromeris albaria coosensis Howe 1922
†Mactromeris beali Hall and Ambrose 1916
†Mactromeris bisculpturata Anderson and Hanna 1925
†Mactromeris brevirostrata Packard 1916
†Mactromeris capayana Vokes 1939
Mactromeris catilliformis Conrad 1867 [narrow dish surfclam]
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†Mactromeris catilliformis alcatrazensis Arnold 1907
Invalid names: Spisula mercedensis Packard 1916 [synonym]
†Mactromeris catilliformis lenticularis Gabb 1866
†Mactromeris coalingensis Arnold 1909
†Mactromeris eugenensis Clark 1925
†Mactromeris gaviotaensis Conrad 1854
†Mactromeris hannibali Clark and Arnold 1923
Mactromeris hemphillii Dall 1894 [Hemphill's dish clam]
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Invalid names: Spisula cameronis Dall 1921 [synonym]
†Mactromeris markleyensis Clark 1938
†Mactromeris mercedensis Packard 1916
†Mactromeris merriami Packard 1916
†Mactromeris montereyana Arnold 1908
†Mactromeris mossbeachensis Glen 1959
†Mactromeris muliniaformis Wagner and Schilling 1923
†Mactromeris occidentalis Gabb 1869
†Mactromeris pittsburgensis Clark 1925
Mactromeris polynyma Stimpson 1860 [Arctic surf clam]
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Invalid names: Spisula voyi Gabb 1866 [synonym]
†Mactromeris ramonensis Packard 1916
†Mactromeris ramonensis attenuata Clark 1918
†Mactromeris rushi Wagner and Schilling 1923
†Mactromeris sectoris Anderson and Martin 1914
†Mactromeris sisquocensis Arnold 1907
†Mactromeris subquadrata Clark 1925
†Mactromeris tejonensis Packard 1916
†Mactromeris tenuissima Gabb 1869
†Mactromeris trampasensis Packard in Clark 1915
Mactromeris voyi Gabb 1866
†Mactromeris weaveri Dickerson 1914
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Cenomanian to the top of the Late/Upper Pleistocene or 100.50000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Collections (385 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | USA (California) | Cymbophora tenuissima (167599) | |
| Danian | USA (California) | Mactra tenuissima (190798) Spisula aequilateralis (193035) | |
| Danian - Thanetian | Russian Federation | Spisula aequilateralis, Spisula merriami (50039) Spisula merriami (49981) | |
| Paleocene | USA (California) | Arctica weaveri (11117) Mactra tenuissima (190795) Spisula weaveri (190778) | |
| Cenozoic | USA (Washington) | Spisula albaria (239448) | |
| Thanetian | USA (California) | Spisula weaveri (211023) | |
| Ypresian | USA (California) | Spisula merriami (122656) Spisula sp. (122294) Spisula tejonensis (52419 52421 52422 52425 52427) | |
| Eocene | Russian Federation | M. polynyma, Spisula merriami (50078) | |
| Eocene | USA (California) | Spisula merriami (91476 207112 207123 207127) Spisula ramonensis (194549) Spisula rushi, Spisula ramonensis (194557 194560) | |
| Lutetian | USA (California) | M. merriami (51953) Spisula bisculpturata (16712 200738 200739 200751 200754 200755 200759 200766 202094) Spisula merriami (94829) | |
| Lutetian | USA (Oregon) | Spisula merriami (200870 200875 200878) | |
| Lutetian - Bartonian | Russian Federation | M. polynyma (50051) | |
| Middle Eocene | Mexico (Baja California Sur) | Spisula sp. (43758) | |
| Middle Eocene | USA (California) | Mactra markleyensis (191188) Spisula acutirostrata, Spisula merriami (194184 194188) Spisula merriami (194185 194187) Spisula muliniaformis (194587) Spisula rushi, Spisula ramonensis, Spisula pittsburgensis (194440) | |
| Early/Lower Uintan | USA (California) | Spisula bisculpturata (200756) | |
| Bartonian | USA (Oregon) | Spisula acutirostrata (201047) | |
| Bartonian | USA (California) | Spisula acutirostrata (52803) Spisula bisculpturata, Spisula acutirostrata, Spisula merriami (52805) Spisula bisculpturata, Spisula merriami (52827) Spisula merriami (52817 122295) Spisula sp. (52828) | |
| Late/Upper Eocene | USA (California) | Spisula bisculpturata (239767) Spisula ramonensis (71161 71162 71164 71166 71167 71168 71169 71170 71171 71172 71173 71175 71176 71177 71178) Spisula rushi, Spisula ramonensis (71174) | |
| Late/Upper Eocene | Mexico (Baja California Sur) | Spisula merriami (43759) | |
| Priabonian | USA (California) | Spisula rushi (52799 52801) Spisula rushi, Spisula ramonensis, Spisula pittsburgensis (52829) | |
| Priabonian | USA (Oregon) | Mulinia eugenensis (37989) Spisula eugenensis (38935 38936 38937 38938 38940 38941 38943 38945 38984 38985 38987 38988 38989 38991 38992 38993 38994 38995 38997 38998 38999 39000 39002 39003 39009 39021 39022 39023 39025 39026 39028 39036) Spisula pittsburgensis (39030 39031) | |
| Early/Lower Oligocene | USA (California) | Spisula muliniaformis (71200) Spisula ramonensis (71187 71188 71189 71191 71192 71195 71196 71197) Spisula rushi (71183) | |
| Early/Lower Oligocene | Russian Federation | M. addicotti, M. polynyma (70463) | |
| Rupelian | USA (Oregon) | Spisula pittsburgensis (37697 37698 37699 37701 37702 37816 37817 37818 37824) | |
| Oligocene | Russian Federation | M. polynyma (49974) | |
| Oligocene | USA (Washington) | Mactra pittsburgensis (208146) Spisula albaria (123759 239430 239432 239433 241042 241710) | |
| Chattian | USA (Oregon) | Spisula pittsburgensis (37685 37687 37688 37690 37691 37692 37694 37695 57052) | |
| Chattian | USA (California) | Mactra albaria (11601) | |
| Chattian | USA (Washington) | Mactra hannibali (208174) Mactra hannibali, Mactra ramonensis (208172) Mactra ramonensis (180405) Spisula albaria (37575 37576 37577 37580 37582 37583 37585 37586 37587 37589 37592 37594) Spisula albaria, Spisula pittsburgensis (52356) Spisula pittsburgensis (52362) | |
| Chattian | USA (Alaska) | Spisula ramonensis (195951 195956 195960) | |
| Chattian | Canada (British Columbia) | Spisula albaria (206743) Spisula hannibali (63087) | |
| Late/Upper Oligocene | USA (California) | Spisula albaria (72407 72408 219727 219733) Spisula albaria, Spisula ramonensis (219755) Spisula ramonensis, Spisula ramonensis, Spisula subquadrata (122273) Spisula rushi, Spisula albaria (219734 219735 219736 219756 219758 219759) Spisula rushi, Spisula ramonensis (72406) | |
| Late/Upper Oligocene | Russian Federation | M. nagakoensis, M. addicotti (70528) | |
| Aquitanian | USA (Washington) | Spisula albaria (37560) | |
| Aquitanian - Burdigalian | Russian Federation | M. polynyma (50041 50050) | |
| Early/Lower Miocene | Japan | M. equilateralis (70422) | |
| Early/Lower Miocene | USA (Washington) | Mactra coalingensis (239633) Spisula albaria (239328 239631 241048 241804) Spisula albaria, Spisula catilliformis (241840) | |
| Early/Lower Miocene | USA (California) | Mactra sectoris (71215 71217 71223 91374 237358 238145 238191) Spisula abbotti (44925) Spisula albaria (44891) Spisula albaria, Mactra sectoris (44893 44921 238183) Spisula albaria, Mactra sectoris, Spisula abbotti (44923) Spisula albaria, Mactra sectoris, Spisula catilliformis (238214) Spisula catilliformis (167645 238144 238166 238239 238241) Spisula hemphilli (237913) Spisula rushi, Spisula albaria (44912) | |
| Early/Lower Miocene | Russian Federation | M. triangulata (70449) | |
| Early/Lower Miocene - Middle Miocene | Mexico (Baja California Sur) | Spisula sp. (43809) | |
| Burdigalian | Russian Federation | M. polynyma (50179) | |
| Burdigalian | USA (Oregon) | Spisula albaria (39805) | |
| Langhian | Japan (Hokkaido) | Spisula onnechiuria (77919) | |
| Langhian | USA (California) | Mactra sectoris (206393) | |
| Langhian | USA (Oregon) | Spisula albaria (39799 39801 39807) | |
| Langhian - Serravallian | USA (California) | Mactra montereyana (37540) | |
| Langhian - Serravallian | Russian Federation | M. polynyma (49979 50037 50038) | |
| Middle Miocene | USA (California) | Mactra sectoris (44935 44985 44988) Spisula abbotti (220080) Spisula albaria (44934 44936 44980) | |
| Middle Miocene | Russian Federation | M. ausiensis, M. polynyma (70446) M. polynyma (70562 70568) Spisula voyi (45445 45446 45447 45448) | |
| Serravallian | Japan | Spisula voyi (44962) | |
| Tortonian | USA (Alaska) | Spisula albaria (37398) Spisula albaria, Spisula brevirostrata (37415) Spisula albaria, Spisula brevirostrata, Spisula polynyma (37401) Spisula albaria, Spisula polynyma (37414) Spisula brevirostrata, Spisula polynyma (37407 37417) Spisula polynyma (37390 37395 37409 37410) | |
| Tortonian | Russian Federation | M. precursor, M. polynyma, Spisula sisquocensis (49978) | |
| Late/Upper Miocene | USA (Washington) | Mactra coalingensis (241043 241050 241293 241294 241295 241296 241297 241302 241316 241319 241782) Spisula albaria (239326 241040 241051 241056 241305 241718) Spisula albaria, Mactra coalingensis (21385 239321 239434 239446) Spisula albaria, Spisula catilliformis (14444) | |
| Late/Upper Miocene | Argentina | Spisula longa (71548 71560 71564) | |
| Late/Upper Miocene | Russian Federation | M. polynyma (70478 70519 70566) M. triangulata (70479) | |
| Late/Upper Miocene | USA (Alaska) | Spisula albaria (44098) | |
| Tortonian - Messinian | Russian Federation | M. polynyma (49977) | |
| Messinian | USA (California) | Spisula hemphilli (194895 195029 195031) Spisula mercedensis (194803 194894) | |
| Messinian - Zanclean | USA (California) | Spisula hemphilli (39355) Spisula hemphilli, Spisula sp. (39335) Spisula sp. (39327 39334) | |
| Opoitian | New Zealand | Spisula aequilateralis (178215) | |
| Early/Lower Pliocene | USA (Oregon) | Spisula albaria (71146 71148 71149 71150 71152 71153) | |
| Early/Lower Pliocene | USA (California) | Spisula albaria (220194) Spisula coalingensis (220195) Spisula hemphilli (97404) | |
| Early/Lower Pliocene | Russian Federation | M. polynyma (50042) | |
| Zanclean | Mexico (Baja California) | Spisula hemphilli (154115) | |
| Pliocene | Russian Federation | M. polynyma (49976) | |
| Pliocene | USA (California) | Mactra albaria (96887) Mactra albaria, Mactra brevirostrata, Mactra catilliformis (96885) Spisula albaria (194689 215294) Spisula coalingensis (215435 216433) | |
| Zanclean - Gelasian | USA (California) | M. hemphilli (214259 214270) | |
| Late/Upper Pliocene | Jamaica | Spisula matleyi (58522) | |
| Late/Upper Pliocene | USA (California) | Mactra catilliformis (200412) Mactra hemphilli (200403) Madra hemphilli (200398) Spisula albaria (96572 96573) Spisula albaria, Spisula mercedensis (96571) Spisula hemphilli (238435 238580) | |
| Late/Upper Pliocene | Japan (Fukushima) | Spisula voyi (62295) | |
| Piacenzian | USA (California) | Spisula catilliformis (186031) Spisula catilliformis, Spisula hemphillii (122752) | |
| Piacenzian | Japan | Spisula grayana, Spisula voyi (97077) | |
| Late/Upper Pliocene - Early/Lower Pleistocene | USA (Washington) | Spisula albaria (71109 71111) | |
| Late/Upper Pliocene - Early/Lower Pleistocene | USA (Oregon) | Spisula voyi (71108) | |
| Gelasian | Belgium | M. polynyma (86807) | |
| Gelasian | USA (California) | M. hemphilli (214278 214279 214280) Spisula catilliformis (207643 207644 207645 207687 207697 207699) Spisula hemphilli (189561 189760 189763 207646 207656 207657 207665 207667 207668 207671 207672 207692 207693 207727 207762) Spisula hemphilli, Spisula catilliformis (207700) | |
| Early/Lower Pleistocene | USA (Alaska) | Spisula polynyma (38007) | |
| Pleistocene | USA (California) | Spisula hemphilli (237610) | |
| Pleistocene | Mexico (Baja California) | Spisula hemphili (96592) | |
| Pleistocene | USA (Oregon) | Spisula albaria, Spisula voyi (71142) | |
| Late/Upper Pleistocene | USA (Maine) | Mactra polynyma (66338 66347) | |
| Late/Upper Pleistocene | Canada (Nova Scotia) | M. polynyma (75074) | |
| Late/Upper Pleistocene | USA (California) | Mactra catilliformis (222659 222661 222662 226458 240604 240613 240615) Mactra catilliformis, Mactra hemphilli (59063) Mactra hemphilli (96895 240612 240621) Mactra hemphilli, Mactra catilliformis (222660) M. hemphilli (96938) M. sp. (96936) Spisula catilliformis (240580 240636) Spisula hemphilli (160361 219030) Spisula hemphilli, Spisula catilliformis (96566) |