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Retusa (Cylichnina)
Taxonomy
Cylichnina was named by Monterasato (1884) [Sepkoski's age data: T Than R]. It is extant.
It was reranked as Retusa (Cylichnina) by Martin (1904), Glibert (1962), Palmer and Brann (1966) and Mandic and Steininger (2003).
It was assigned to Scaphanderidae by Turner (1938); to Scaphandridae by Durham (1944) and Harris and Palmer (1947); to Cylichnidae by Squires (1984), Squires (1987), Squires (1988), Squires and Demetrion (1992) and Squires (1999); to Cephalaspida by Sepkoski (2002); to Retusidae by Todd (2001) and Harzhauser and Kowalke (2002); and to Retusa by Martin (1904), Glibert (1962), Palmer and Brann (1966) and Mandic and Steininger (2003).
It was reranked as Retusa (Cylichnina) by Martin (1904), Glibert (1962), Palmer and Brann (1966) and Mandic and Steininger (2003).
It was assigned to Scaphanderidae by Turner (1938); to Scaphandridae by Durham (1944) and Harris and Palmer (1947); to Cylichnidae by Squires (1984), Squires (1987), Squires (1988), Squires and Demetrion (1992) and Squires (1999); to Cephalaspida by Sepkoski (2002); to Retusidae by Todd (2001) and Harzhauser and Kowalke (2002); and to Retusa by Martin (1904), Glibert (1962), Palmer and Brann (1966) and Mandic and Steininger (2003).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Cylichnina Monterasato |
| 1904 | Retusa (Cylichnina) Martin p. 135 |
| 1938 | Cylichnina Turner p. 67 |
| 1944 | Cylichnina Durham p. 190 |
| 1947 | Cylichnina Harris and Palmer p. 450 |
| 1962 | Retusa (Cylichnina) Glibert p. 57 |
| 1966 | Retusa (Cylichnina) Palmer and Brann p. 878 |
| 1984 | Cylichnina Squires p. 39 |
| 1987 | Cylichnina Squires p. 53 |
| 1988 | Cylichnina Squires p. 17 |
| 1992 | Cylichnina Squires and Demetrion p. 34 |
| 1999 | Cylichnina Squires p. 22 |
| 2001 | Cylichnina Todd |
| 2002 | Cylichnina Harzhauser and Kowalke p. 74 |
| 2002 | Cylichnina Sepkoski |
| 2003 | Retusa (Cylichnina) Mandic and Steininger p. 274 |
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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.
Subg. Retusa (Cylichnina) Monterasato 1884
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†Cylichnina coelata Deshayes 1862
†Cylichnina petrosa Conrad 1848
†Cylichnina tantilla Anderson and Hanna 1925
†Cylichnina turneri Effinger 1938
†Retusa (Cylichnina) aequiattenuata Eames 1952
†Retusa (Cylichnina) conutus Deshayes 1824
†Retusa (Cylichnina) marylandica Martin 1904
†Retusa (Cylichnina) subspissa Conrad 1848
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Early/Lower Cenomanian to the top of the Late/Upper Pleistocene or 99.60000 to 0.01170 Ma
Collections (244 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (California) | Cylichnina sp. (185726) | |
| Early/Lower Cenomanian | USA (California) | Cylichnina sp. (167599) | |
| Turonian | USA (California) | Cylichnina sp. (167600) | |
| Middle Campanian | USA (California) | Cylichnina sp. (144763) | |
| Danian | USA (Texas) | Retusa praemoryi (205466) | |
| Danian - Selandian | USA (Texas) | Retusa emoryi (99003) | |
| Danian - Thanetian | USA (Louisiana) | Retusa sp. B (52197) | |
| Paleocene | USA (California) | Cylichnina tantilla (11117) | |
| Selandian | USA (Alabama) | Retusa galba (205499) Retusa sp. A (90605) | |
| Thanetian | USA (California) | Cylichnina sp. (52597) Cylichnina tantilla (52596) | |
| Thanetian | USA (Texas) | Retusa bastropensis (205455) | |
| Ypresian | USA (California) | Cylichnina sp. (167604) Cylichnina tantilla (122656 177611 178718 178748 178749 178750 178752 178756 185192 193545 207308 207311 207315 207318 207323 207325) | |
| Ypresian | USA (Oregon) | Cylichnina tantilla (52265 52266 52267 52271 52303 200798 200799 200800 200804 200873) | |
| Ypresian | United Kingdom (England) | Cylichnina sp. (3260) | |
| Ypresian | USA (Texas) | Retusa adamsi (7788 7789 83950 84337) Retusa adamski (178054) Retusa sylvaerupis (91844) | |
| Ypresian | Mexico (Baja California) | Cylichnina tantilla (5506) | |
| Ypresian | Mexico (Baja California Sur) | Cylichnina tantilla (5496) | |
| Ypresian | USA (Washington) | Cylichnina tantilla (146900) | |
| Ypresian | USA (Alabama) | Retusa sylvaerupis (98277) | |
| Ypresian - Lutetian | USA (California) | Cylichnina tantilla (8011 8016 8018 200143 200144 205251) | |
| Ypresian - Lutetian | USA (Oregon) | Cylichnina tantilla (200885 200901 200902 200918) | |
| Eocene | USA (California) | Cylichnina tantilia (194436) | |
| Eocene | USA (Oregon) | Cylichnina tantilla (200899) | |
| Early/Lower Eocene | USA (California) | Cylichnina tantilla (111552 111554) | |
| Lutetian | USA (Texas) | Retusa adamski, Retusa notata (205533) Retusa adamski, Retusa notata, Retusa sp. (205520) Retusa galba (205440) Retusa kellogii (205421 205496 205527) | |
| Lutetian | USA (Mississippi) | Retusa galba (99673) | |
| Lutetian | USA (Oregon) | Cylichnina tantilla (200870 200910 200914 201033 201041) | |
| Lutetian | USA (California) | Cylichnella tantilla (166458) Cylichnina sp. (94826 94829) Cylichnina tantilla (5524 5527 5531 5532 5540 5541 5542 5543 8012 94820 94825 176677 178733 178777 200845 200848 200852 200853 201203 201215 201693 201695 201700 201701 207148 207149 207161 207175 207176 207178 207181) | |
| Lutetian | United Kingdom (England) | Cylichnina caillati, Cylichnina conulus (8124) Cylichnina conulus (8125) | |
| Lutetian - Bartonian | USA (Alabama) | Retusa galba (205420) | |
| Middle Eocene | USA (California) | Cylichnina tantilla (194187 194441) | |
| Bartonian | USA (Mississippi) | Retusa galba (90707 90709 99736 205508) | |
| Bartonian | USA (Louisiana) | Retusa adamsi, Retusa kellogii (92347) Retusa galba (44410 44517 44518 98787) Retusa kellogii (92388) | |
| Bartonian | USA (Alabama) | Retusa galba (90469 90600 98272) Retusa kellogii, Retusa galba (205489) Retusa sp. A (98256) Retusa sp., Retusa galba (205438) | |
| Bartonian | Pakistan | Retusa aequiattenuata (8676) | |
| Bartonian | USA (Texas) | Retusa adamsi, Retusa galba (90454) Retusa adamski (205461) Retusa adamski, Retusa galba (205515) Retusa adamski, Retusa kellogii (205480 205484 205485) Retusa adamski, Retusa kellogii, Retusa galba (205410) Retusa galba (90884 205433) Retusa kellogii (7437 90656 90885 91119 205415 205422) Retusa kellogii, Retusa galba (7438 7439 205483) Retusa kellogii, Retusa sp. (205430) | |
| Bartonian | USA (Washington) | Cylichnina tantilla (161924 203164) | |
| Priabonian | USA (Washington) | Cylichnina turneri (91606) | |
| Priabonian | USA (Oregon) | Cylichnina turneri (38999 39002 39003 39004) | |
| Late/Upper Eocene | Panama | Retusa adamsi (42531) | |
| Late/Upper Eocene | Jamaica | Cylichnina galba (60955) | |
| Early/Lower Oligocene | France (Essonne) | Retusa minuta (9075 9077 9079 9098 9114 9135 9169 9172) Retusa sp. (9180) | |
| Rupelian | Belgium | Cylichnina coelata (111366 111371 111373) | |
| Aquitanian | Panama | Retusa sp. (49489) | |
| Early/Lower Miocene | USA (California) | Cylichnina sp. (167645) | |
| Early/Lower Miocene | Brazil (Para) | Retusa arcana (60979 65162) | |
| Early/Lower Miocene | Germany (North Rhein-Westfalia) | Retusa elongata, Retusa subangistoma (62882 62883) | |
| Early/Lower Miocene - Middle Miocene | Germany (North Rhein-Westfalia) | Retusa elongata (62884) | |
| Miocene | USA (Maryland) | Retusa marylandica (125939) | |
| Miocene | Germany (North Rhein-Westfalia) | Retusa elongata (62899 62929 62932 62935 62936 62937 62939 62941 62954) Retusa subangistoma (62903) | |
| Burdigalian | Germany | Cylichnina elongata, Cylichnina subangistoma (111599) | |
| Burdigalian | Austria | Retusa clathrata (77402) | |
| Burdigalian | USA (Oregon) | Cylichnina petrosa (39805) | |
| Burdigalian - Langhian | USA (Oregon) | Cylichnina petrosa (39591 39595) | |
| Langhian | USA (Oregon) | Cylichnina petrosa (39600 39798 39799 39803 39804 201690) | |
| Langhian - Serravallian | Netherlands | Retusa elongata (186883 186884) | |
| Middle Miocene | Germany (North Rhein-Westfalia) | Retusa elongata (61896 61898 61899 61900 61901 61904 61905 61907 62867 62885 62886 62887 62888 62889 62891 62892 62893) Retusa elongata, Retusa subangistoma (61895 61897 61906) | |
| Middle Miocene | Iran | Cylichnina melitopolitana (77195 77199) Cylichnina sp. (77200) | |
| Serravallian | Kazakhstan | Cylichnina sp. (174760) | |
| Sarmatian | Austria | Cylichnina elongata (77423) | |
| Tortonian | Panama (Colon) | Retusa quercinensis (145210) | |
| Tortonian | USA (Maryland) | Retusa marylandica (70853) | |
| Tortonian | Panama | Cylichnina sp. (136016) Retusa quercinensis (93062 93159 93172 93174 93175) | |
| Tortonian | Denmark | Retusa elongata (98312) | |
| Messinian | Algeria | Cylichnina sp. (69864) | |
| Late/Upper Pliocene | Venezuela | Cylichnina sulcata (131218 131363) | |
| Piacenzian | Belgium | Cylichnina elongata (179048 179079) | |
| Late/Upper Pleistocene | Portugal (Azores) | Cylichnina sp. (89618) |