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Maeandricampus
Taxonomy
Maeandricampus was named by Schweitzer and Feldmann (2002). Its type is Portunites triangulum.
It was assigned to Portunidae by Karasawa and Schweitzer (2006); to Macropipidae by Karasawa et al. (2008), Schweitzer et al. (2010), Schweitzer et al. (2012), Luque et al. (2017); and to Polybiinae by Schweitzer and Feldmann (2002), Feldmann et al. (2018), Schweitzer et al. (2021).
It was assigned to Portunidae by Karasawa and Schweitzer (2006); to Macropipidae by Karasawa et al. (2008), Schweitzer et al. (2010), Schweitzer et al. (2012), Luque et al. (2017); and to Polybiinae by Schweitzer and Feldmann (2002), Feldmann et al. (2018), Schweitzer et al. (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Maeandricampus Schweitzer and Feldmann p. 955 |
| 2006 | Maeandricampus Karasawa and Schweitzer p. 61 |
| 2008 | Maeandricampus Karasawa et al. p. 100 |
| 2010 | Maeandricampus Schweitzer et al. p. 107 |
| 2012 | Maeandricampus Schweitzer et al. p. 151 |
| 2017 | Maeandricampus Luque et al. p. 44 |
| 2018 | Maeandricampus Feldmann et al. p. 580 |
| 2021 | Maeandricampus Schweitzer et al. p. 9 |
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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. †Maeandricampus Schweitzer and Feldmann 2002
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†Maeandricampus americanus Rathbun 1930
†Maeandricampus granuliferum Glaessner 1960
†Maeandricampus granuliferus Glaessner 1960
†Maeandricampus starri Feldmann et al. 2018
†Maeandricampus triangulum Rathbun 1926
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. E. Schweitzer and R. M. Feldmann 2002 | Carapace wider than long, L/W 1⁄4 0.6–0.7, widest at position of last ante- rolateral spine; regions moderately defined; arcuate ridge extending from last anterolateral spine to axis of carapace, may be ornamented with tubercles; front with four spines not including inner orbital spine; orbits circular, with two closed fissures, inner-orbital spine small, outer-orbital spine as large as anterolat- eral spines; anterolateral spines 1–3 triangular, flattened, directed forward or weakly anterolat- erally, tips sharp; last anterolateral spine lon- gest, twice as long as other anterolateral spines, directed laterally, more needle-like and circular in cross-section than other spines. Branchial regions with longitudinal ridge extending from position lateral to urogastric region to posterior margin, may be ornamented with tubercles; remainder of regions relatively unornamented. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan 1992, Fearon and Clapham 2023, Turnsek 1997 | |||||
Age range: base of the Late/Upper Eocene to the top of the Aquitanian or 37.20000 to 20.44000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kaiatan | New Zealand | Rhachiosoma granuliferum (4886) | |
| Late/Upper Eocene | New Zealand | Rhachiosoma granuliferum (37708) | |
| Oligocene | USA (Oregon) | M. triangulum (139022 139533 139858 139860) | |
| Oligocene | USA (Washington) | M. triangulum (139444 139445 139447 139458 139460 139855 139857) | |
| Chattian | New Zealand (South Otago) | Portunites granulifer (45653) | |
| Aquitanian | USA (Washington) | M. starri (196806) |