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Balanus tintinnabulum
Taxonomy
Balanus tintinnabulum was named by Linnaeus (1758). It is extant.
It was recombined as Balanus (Megabalanus) tintinnabulum by Foster (1978); it was recombined as Megabalanus tintinnabulum by Zullo (1992), Henry and McLaughlin (1996).
It was recombined as Balanus (Megabalanus) tintinnabulum by Foster (1978); it was recombined as Megabalanus tintinnabulum by Zullo (1992), Henry and McLaughlin (1996).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1758 | Balanus tintinnabulum Linnaeus |
| 1879 | Balanus tintinnabulum Martin p. 131 |
| 1909 | Balanus concavus coosensis Dall p. 138 figs. pl. 19, figs. 1, 6 |
| 1978 | Balanus (Megabalanus) tintinnabulum Foster |
| 1992 | Megabalanus tintinnabulum Zullo p. 39 |
| 1996 | Megabalanus tintinnabulum Henry and McLaughlin p. 17 |
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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.
Balanus tintinnabulum Linnaeus 1758
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Balanus (Megabalanus) tintinnabulum linzei Foster 1978
Invalid names: Balanus coosensis Dall 1909 [synonym]
Balanus tintinnabulum azoricus Pilsbry 1916
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. P. Henry and P. A. McLaughlin 1996 | Shell cylindric, cylindroconic or conic, basis often lengthen-ed; parietes smooth, plicated or roughened; radii wide, usually horizontally striated, summits horizontal; summits of alae oblique; orifice moderately small to large, 1/3 to 2/3 basal diameter, subcircular to subtriangular. Scutum with narrow to moderately broad tergal segment, usually flat or slightly inflected in cylindric specimens, obtusely inflected in cylindroconic and conic specimens; external surface occasionally with shallow median depression, rarely also with few shallow pits in very small individuals; basal margin straight or slightly sinuous; occludent margin toothed; growth ridges prominent; longitudinal striae well developed, at least basally; articular ridge reflex-ed, 1/2 to 2/3 length of tergal margin; adductor ridge rounded or acute, confluent with articular ridge; pit for adductor ridge shallow to moderately deep; pit for lateral depressor muscle shallow to moderately well developed, sometimes with longitudinal crests. Tergum frequently wider than scutum, with spur furrow closed; spur moderately long, narrow to moderately wide, separated from basiscutal angle by 1 Vi to 4 times own width; basal margin straight or slightly sloping to spur on both sides; scutal margin denticulate; growth ridges prominent at least in basal half; longitudinal striae fine, sometimes absent; articular ridge approximately 2/3 length of scutal margin; crests for depressor muscle weakly to moderately well developed. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Middle Eocene to the top of the Late/Upper Pleistocene or 48.07000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Collections (17 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene | Indonesia | Balanus tintinnabulum (70102) | |
| Oligocene | Slovenia | Balanus tintinnabulum (87472) | |
| Early/Lower Miocene | Brazil (Piaui) | Megabalanus tintinnabulum (112600) | |
| Early/Lower Miocene | USA (California) | Megabalanus tintinnabulum (196138 196169) | |
| Early/Lower Miocene | Brazil (Para) | Megabalanus tintinnabulum (112590) | |
| Burdigalian - Langhian | Belgium | Megabalanus tintinnabulum (114830) | |
| Late/Upper Miocene | Indonesia | Balanus tintinnabulum (70099) | |
| Early/Lower Pliocene | USA (Florida) | Balanus tintinnabulum (35026) | |
| Pliocene | Mexico (Baja California Sur) | Balanus tintinnabulum (43686) | |
| Early/Lower Pleistocene - Middle Pleistocene | Peru | Balanus tintinnabulum (96897) | |
| Quaternary | USA (California) | Balanus tintinnabulum (37934 37937 37938) | |
| Calabrian | Cape Verde | Megabalanus azoricus (176653 176654) | |
| Late/Upper Pleistocene | USA (California) | Balanus tintinnabulum (160361) |