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Deferrariischnium mapuchensis
Taxonomy
Deferrariischnium mapuchensis was named by Calvo (1991). It is considered to be a form taxon. Its type specimen is MUCPv 62 (plastotype), a footprint, and it is a trace fossil. Its type locality is Peninsula Nueva tracksite (level 4), which is in a Cenomanian delta plain sandstone in the Candeleros Formation of Argentina. It is the type species of Deferrariischnium.
It was considered a nomen dubium by Krapovickas et al. (2020).
It was considered a nomen dubium by Krapovickas et al. (2020).
Synonymy list
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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.
†Deferrariischnium mapuchensis Calvo 1991
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Diagnosis
Reference | Diagnosis | |
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J. O. Calvo 1991 | La misma del género. | |
J. O. Calvo 2007 | The tracks belong to a small theropod dinosaur characterized by the impression of a long digit III, displaced internally and with a sharp claw. It occupies more than 50% of the track length. Digits II and IV are poorly developed, without claw impressions, and diverge no more than 25'° with respect to digit III. The small heel connects with the later:rl digits (Cah'o 1991). |
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
References: Benton 1983, Marsh 1875 |
Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Cenomanian | Argentina (Mendoza) | Coelurosauria indet. (type locality: 98023) Deferrariischnium mapuchensis (75276) |