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Caririchnium lotus
Taxonomy
Caririchnium lotus was named by Xing et al. (2007). It is considered to be a form taxon. Its type specimen is QII-O20-RP2 and RM2 (formerly QJGM-T37–3), a footprint (A complete manus-pes set of natural-mold tracks), and it is a trace fossil. Its type locality is Lotus Fortress tracksite, QII, which is in a Barremian/Albian terrestrial sandstone/mudstone in the Jiaguan Formation of China.
It was considered a nomen dubium by Lockley et al. (2013).
It was considered a nomen dubium by Lockley et al. (2013).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Iguanodonipus cuadrupedae Moratalla |
| 2007 | Caririchnium lotus Xing et al. p. 1595 fig. 5 |
| 2009 | Caririchnium lotus Xing et al. p. 832 |
| 2011 | Caririchnium lotus Xing et al. p. 478 |
| 2012 | Caririchnium lotus Xing et al. p. 304 |
| 2013 | Caririchnium lotus Xing et al. p. 2376 |
| 2015 | Caririchnium lotus Díaz-Martínez et al. pp. 12, 31 |
| 2015 | Iguanodonipus cuadrupedae Pérez-Lorente p. 310 |
| 2015 | Caririchnium lotus Xing et al. p. 8–10 |
| 2015 | Caririchnium lotus Xing et al. p. 322 |
| 2016 | Caririchnium lotus Kim et al. p. 6 |
| 2016 | Caririchnium lotus Xing et al. p. 189 |
| 2017 | Caririchnium lotus Xing et al. p. 171 |
| 2018 | Caririchnium lotus Lee et al. p. 211 |
| 2018 | Caririchnium lotus Xing et al. p. 596 |
| 2019 | Caririchnium lotus Xing et al. |
| 2021 | Caririchnium lotus Leonardi et al. p. 10 |
| 2021 | Caririchnium lotus Xing et al. p. 74 |
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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.
†Caririchnium lotus Xing et al. 2007
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Invalid names: Iguanodonipus cuadrupedae Moratalla 1993 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| I. Díaz-Martínez et al. 2015 | Pes tracks belonging to Caririchnium with very large heel pad impressions that are longerthan wide; blunt distal end of digit impressions; subtriangular distal part of heel pad; manus tracks rectangular, smoothly concave in the proximal part and wider than long. | |
| L. Xing et al. 2015 | Large size (~35 cm) quadrupedal ornithopod tracks. Pes trace mesaxonic, functionally tridactyl, with quadripartite morphology, consisting of impressions of three digits and a heel pad separated by pronounced ridges. Mean length/width ratio 1.1. Mean value of mesaxony, measured as L/W of anterior triangle 0.37. Manus trace suboval to semicircular, situated anterolaterally to pes trace, sometimes with faint traces of anteromedially positioned digit. Typical heteropody (ratio of manus to pes size) 1:6.1. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||
Age range: base of the Berriasian to the top of the Early/Lower Aptian or 145.00000 to 122.46000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian | Spain (Castilla y Leon) | Iguanodon sp. (68453) | |
| Early/Lower Cretaceous | South Korea (Jeollabuk-do) | Caririchnium lotus (220101) | |
| Late/Upper Barremian - Early/Lower Aptian | Spain (La Rioja) | Iguanodonipus cuadrupedae (85181) | |
| Barremian | Spain (La Rioja) | Iguanodontidae indet. (166231) | |
| Barremian - Albian | China (Sichuan) | Caririchnium lotus (type locality: 220058 220059 220060) | |
| Aptian | Spain (La Rioja) | Iguanodon sp. (59099) Ornithopoda indet. (61860) |