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Cricosaurus
Taxonomy
Cricosaurus was named by Wagner (1858) [Sepkoski's age data: J Kimm Sepkoski's reference number: 620].
It was synonymized subjectively with Geosaurus by Zittel (1890).
It was assigned to Crocodilia by Sepkoski (2002); to Thalattosuchia by Bronzati et al. (2012); to Metriorhynchinae by Young et al. (2010), Cau and Fanti (2011) and Young (2013); to Metriorhynchidae by Young et al. (2013) and Sachs et al. (2019); and to Rhacheosaurini by Buchy et al. (2013), Parrilla-Bel and Canudo (2015) and Young et al. (2024).
It was synonymized subjectively with Geosaurus by Zittel (1890).
It was assigned to Crocodilia by Sepkoski (2002); to Thalattosuchia by Bronzati et al. (2012); to Metriorhynchinae by Young et al. (2010), Cau and Fanti (2011) and Young (2013); to Metriorhynchidae by Young et al. (2013) and Sachs et al. (2019); and to Rhacheosaurini by Buchy et al. (2013), Parrilla-Bel and Canudo (2015) and Young et al. (2024).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1842 | Neustosaurus Raspail |
| 1845 | Neustosaurus Meyer p. 281 |
| 1858 | Cricosaurus Wagner |
| 1883 | Enaliosuchus Koken |
| 1928 | Neustosaurus Piveteau |
| 1988 | Enaliosuchus Carroll |
| 2000 | Enaliosuchus Hua et al. p. 472 |
| 2002 | Cricosaurus Sepkoski |
| 2002 | Enaliosuchus Sepkoski |
| 2009 | Enaliosuchus Jouve |
| 2010 | Cricosaurus Young et al. pp. 851-852 |
| 2011 | Cricosaurus Cau and Fanti p. 558 fig. 6 |
| 2012 | Cricosaurus Bronzati et al. |
| 2013 | Cricosaurus Buchy et al. |
| 2013 | Cricosaurus Young fig. 6 |
| 2013 | Cricosaurus Young et al. |
| 2015 | Cricosaurus Parrilla-Bel and Canudo |
| 2019 | Cricosaurus Sachs et al. |
| 2024 | Cricosaurus Young et al. p. 604 |
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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. †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 suevicus Fraas 1901
†Cricosaurus vignaudi Frey et al. 2002
Invalid names: Enaliosuchus Koken 1883 [synonym], Neustosaurus Raspail 1842 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. T. Young et al. 2010 | Metriorhynchid thalattosuchian with procumbent teeth, with little to no lateromedial compression; cranial bones smooth, and lacking conspicuous ornamentation; an acute angle is formed by the lateral and medial processes of the frontal; the dorsal margin of the supratemporal arcade is lower than the medial process of the frontal; the eyes are as large as the supratemporal fenestra; the surangular and angular are well-developed, extending rostrally beyond the orbits; the symphysial part of the mandible is low, only about 15-mm high; the lateral margin of the prefrontals is rounded; the external nares are bifurcated by the premaxillary septum and terminate at the end of the second maxillary alveoli; the humerus deltopectoral crest is absent; the calcaneum tuber is either absent or vestigial; the proximal end of metatarsal I is greatly enlarged. |
Measurements
No measurements are available
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| Source: subo = suborder | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Kimmeridgian to the top of the Late/Upper Valanginian or 157.30000 to 136.40000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Oxfordian - Late/Upper Oxfordian | Cuba (Pinar del Río) | C. sp. Cuba (45797) | |
| Kimmeridgian | Germany (Bavaria) | C. bambergensis (207479) | |
| Late/Upper Kimmeridgian | Germany (Bayern) | C. sp., C. albersdoerferi (130048) | |
| Late/Upper Kimmeridgian | Germany (Baden-Württemberg) | C. suevicus (154138) Geosaurus suevicus, C. suevicus (41817) | |
| Late/Upper Kimmeridgian | Mexico (Coahuila) | C. saltillensis (110176) | |
| Tithonian | Germany (Franconia) | C. elegans (24521) | |
| Tithonian | Mexico (Puebla) | Geosaurus vignaudi (27249) | |
| Early/Lower Tithonian | Argentina (Neuquén) | C. sp., C. araucanensis (79651) | |
| Early/Lower Tithonian | Argentina | C. araucanensis (144919) | |
| Early/Lower Tithonian | Germany (Bayern) | C. elegans (53039) C. elegans, C. gracilis (132062) | |
| Early/Lower Tithonian | Mexico (Coahuila) | Geosaurus saltillense (104859) | |
| Early/Lower Tithonian | Germany (Bavaria) | C. rauhuti (224058) | |
| Middle Tithonian - Late/Upper Tithonian | Argentina (Neuquén) | C. lithographicus (92122) | |
| Early/Lower Berriasian | Argentina (Mendoza) | C. puelchorum (224057) | |
| Early/Lower Valanginian | France (Provence-Alpes-Côte d'Azur) | Enaliosuchus macrospondylus (68272) Neustosaurus gigondarum (123475) | |
| Late/Upper Valanginian | Germany (Lower Saxony) | C. macrospondylus (155308) |