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Sarmientichnus
Taxonomy
Sarmientichnus was named by Casamiquela (1964). It is considered to be a form taxon. Its type is Sarmientichnus scagliai.
It was considered a nomen dubium by Kim et al. (2018).
It was assigned to Coelurosauroidea by Casamiquela (1964); to Saurischia by Haubold (1974); to Coelurosauria by Bonaparte (1980); to Coelurosauria by Haubold (1971), Bonaparte (1980), Leonardi (1981), Leonardi (1989); to Sauropodidae by Calvo (2007); and to Theropoda by De Valais and Melchor (2003), de Valais (2011), Otero and Reguero (2013).
It was considered a nomen dubium by Kim et al. (2018).
It was assigned to Coelurosauroidea by Casamiquela (1964); to Saurischia by Haubold (1974); to Coelurosauria by Bonaparte (1980); to Coelurosauria by Haubold (1971), Bonaparte (1980), Leonardi (1981), Leonardi (1989); to Sauropodidae by Calvo (2007); and to Theropoda by De Valais and Melchor (2003), de Valais (2011), Otero and Reguero (2013).
Species
S. scagliai (syn. Casamiquelichnus navesorum) (type species)
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Sarmientichnus Casamiquela p. 130 |
| 1971 | Sarmientichnus Haubold p. 73 |
| 1974 | Sarmientichnus Haubold p. 45 |
| 1980 | Sarmientichnus Bonaparte p. 81 |
| 1981 | Sarmientichnus Leonardi p. 932 |
| 1989 | Sarmientichnus Leonardi p. 166 |
| 2003 | Sarmientichnus De Valais and Melchor p. 53R |
| 2004 | Casamiquelichnus Coria and Paulina Carabajal |
| 2007 | Sarmientichnus Calvo p. 321 |
| 2011 | Sarmientichnus de Valais pp. 35-36 |
| 2013 | Sarmientichnus Otero and Reguero p. 20 |
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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. †Sarmientichnus Casamiquela 1964
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†Sarmientichnus scagliai Casamiquela 1964
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Invalid names: Casamiquelichnus navesorum Coria and Paulina Carabajal 2004 [synonym]
Invalid names: Casamiquelichnus Coria and Paulina Carabajal 2004 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. M. Casamiquela 1964 | Impresiones correspondientes a un dinosaurio de pequeña talla, bípedo, y de extrema especialización pedial, funcionamiento monodáctilo. Ángulo de paso prácticamente llano. Digitigrado. Único dedo presente con falange ungueal acuminada, pero carente de verdadera garra. Marcas de cola no visibles. Largo del paso doble 340-370 mm. | |
| S. de Valais 2011 | Bipedal trackways composed of functionally didactyl tracks with the major axis nearly parallel to the midline. Caudally orientated digit I and cranially orientated digit III impressions are directly in line with one another and usually are not clearly distinguishable from each other. No lateral digits are preserved. Digit III has a triangular claw mark. Straight marks parallel to the midline are often present. The trackways are relatively narrow and have high pace angulation. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Callovian - Oxfordian | Argentina (Santa Cruz) | S. scagliai (85570) S. sp. (219676) | |
| Barremian | China (Shaanxi) | S. sp. (219890) |