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Rhacheosaurini
Taxonomy
Rhacheosaurini was named by Young et al. (2011). It is not extant. It was considered monophyletic by Parrilla-Bel et al. (2013).
It was assigned to Metriorhynchinae by Parrilla-Bel et al. (2013) and Barrientos-Lara et al. (2018).
It was assigned to Metriorhynchinae by Parrilla-Bel et al. (2013) and Barrientos-Lara et al. (2018).
Synonymy list
Year | Name and author |
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2011 | Rhacheosaurini Young et al. |
2013 | Rhacheosaurini Parrilla-Bel et al. pp. 3-4 |
2018 | Rhacheosaurini Barrientos-Lara et al. |
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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.
Tr. †Rhacheosaurini Young et al. 2011
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G. †Cricosaurus Wagner 1858
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†Cricosaurus albersdoerferi Sachs et al. 2021
†Cricosaurus araucanensis Gasparini and Dellape 1976
†Cricosaurus bambergensis Sachs et al. 2019
†Cricosaurus elegans Wagner 1852
†Cricosaurus gracilis Phillips 1871
†Cricosaurus lithographicus Herrera et al. 2013
†Cricosaurus macrospondylus Koken 1883
†Cricosaurus mexicanus Wieland 1910
†Cricosaurus puelchorum Herrera et al. 2021
†Cricosaurus rauhuti Herrera et al. 2021
†Cricosaurus saltillensis Buchy et al. 2006
†Cricosaurus schroderi Kuhn 1936
†Cricosaurus schroederi Kühn 1936
†Cricosaurus suevicus Fraas 1901
†Cricosaurus vignaudi Frey et al. 2002
Invalid names: Enaliosuchus Koken 1883 [synonym], Neustosaurus Raspail 1842 [nomen dubium]
G. †Maledictosuchus Parrilla-Bel et al. 2013
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†Maledictosuchus nuyivijanan Barrientos-Lara et al. 2018
†Maledictosuchus riclaensis Parrilla-Bel et al. 2013
Diagnosis
Reference | Diagnosis | |
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J. Parrilla-Bel et al. 2013 | Metriorhynchid crocodylomorphs with the following unique combination of characters (autapomorphic characters are indicated by an asterisk): posterodorsal retraction of external nares, with the anterior margin of the external nares starting posterior to the first premaxillary alveolus (ch. 7:3)*; development of premaxillary septum that divides the external nares along the skull midline (ch. 9:1)*; supratemporal fenestra subequal or shorter in length than orbits*; frontopostorbital suture lower than (ventral to) the intertemporal bar (ch. 60:1)*; infratemporal fenestra shorter in length than the orbit (ch. 86:2); paroccipital process dorsolaterally orientated, at an approximate 45 degree angle (ch. 104:1)*; teeth lack carinae (ch. 167:0); the anterior margin of both angular and surangular bones terminates anterior to the orbit (ch. 139–140:1)*; presacral vertebrae count increased by one (to 25) (ch. 178:1)*; number of caudal vertebrae increased by at least eight (>45); humerus shaft greatly reduced, contributing less than 25% of total humeral length (ch. 207:2); radius and ulna are subequal in size to the radiale and ulnare, respectively; tibia length greatly shortened, measuring less than 30% of femoral length (ch. 225:3). |
Measurements
No measurements are available
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Source: subo = suborder | |||||
Reference: Kiessling 2004 |
Age range: base of the Middle Callovian to the top of the Late/Upper Valanginian or 164.70000 to 136.40000 Ma
Collections (24 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Middle Callovian | Spain (Zaragoza) | Maledictosuchus riclaensis (138665) | |
Middle Oxfordian - Late/Upper Oxfordian | Cuba (Pinar del Río) | Cricosaurus sp. Cuba (45797) | |
Kimmeridgian | Mexico (Oaxaca) | Maledictosuchus nuyivijanan (207480) | |
Kimmeridgian | Germany (Bavaria) | Cricosaurus bambergensis (207479) | |
Late/Upper Kimmeridgian | Germany (Baden-Württemberg) | Cricosaurus suevicus (154138) Geosaurus suevicus, Cricosaurus suevicus (41817) | |
Late/Upper Kimmeridgian | Mexico (Coahuila) | Cricosaurus saltillensis (110176) | |
Late/Upper Kimmeridgian | Germany (Bayern) | Cricosaurus sp., Cricosaurus albersdoerferi (130048) | |
Tithonian | Germany (Franconia) | Cricosaurus elegans (24521) | |
Tithonian | Mexico (Puebla) | Geosaurus vignaudi (27249) | |
Early/Lower Tithonian | Germany (Bavaria) | Cricosaurus rauhuti (224058) Rhacheosaurus gracilis (58604) | |
Early/Lower Tithonian | Argentina (Neuquén) | Cricosaurus sp., Cricosaurus araucanensis (79651) | |
Early/Lower Tithonian | Germany (Bayern) | Cricosaurus elegans, Cricosaurus gracilis (132062) Cricosaurus elegans, Rhacehosaurus gracilis (53039) Rhacheosaurus gracilis (212951) | |
Early/Lower Tithonian | Argentina | Cricosaurus araucanensis (144919) | |
Early/Lower Tithonian | Mexico (Coahuila) | Geosaurus saltillense (104859) | |
Middle Tithonian - Late/Upper Tithonian | Argentina (Neuquén) | Cricosaurus lithographicus (92122) | |
Early/Lower Berriasian | Argentina (Mendoza) | Cricosaurus puelchorum (224057) | |
Late/Upper Berriasian - Valanginian | Germany | Enaliosuchus schroederi (95087) | |
Early/Lower Valanginian | France (Provence-Alpes-Côte d'Azur) | Enaliosuchus macrospondylus (68272) Neustosaurus gigondarum (123475) | |
Late/Upper Valanginian | Germany (Lower Saxony) | Cricosaurus macrospondylus (155308) |