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Diandongosaurus acutidentatus
Taxonomy
Diandongosaurus acutidentatus was named by Shang et al. (2011). Its type specimen is IVPP V 17761, a skeleton (complete, articulated skeleton), and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Diandongosaurus acutidentatus Shang et al. pp. 156-167 figs. 1-5 |
| 2014 | Diandongosaurus acutidentatus Sato et al. p. 122 |
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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.
†Diandongosaurus acutidentatus Shang et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. Sato et al. 2014 | A small to medium-sized eosaurop- terygian with the following characters: enlarged and fang- like premaxillary and anterior dentary teeth; maxilla with one or two fangs and distinctly smaller conical teeth; short snout without constriction; supratemporal fenestra smaller than orbit; broad interorbital bridge; posterolateral process approaching the supratemporal fenestra; presence of a few small vomerine teeth; parietal foramen anterior to supratemporal fenestra; frontal excluded from orbit by prefrontal-postfrontal contact; postorbital excluded from in- fratemporal fenestra by jugal–squamosal contact; descending process of squamosal reaching lateral side of articular condyle of quadrate; quadratojugal present; ectopterygoid present; distinct trough on the dorsal surface of retroarticular process; vertebral column consisting of about 20 cervical, 18 dorsal, 3 or 4 sacral and 39 caudal vertebrae; anterior caudal ribs 3 to 8 elongate and distally truncated; lateral elements of gastralia distally swollen and curving dorsally; clavicle with a distinct anterolateral process; boomerang- shaped interclavicle (may develop a weak posterior pro- jection); entepicondylar foramen absent; ungual phalanges of pes extremely expanded dorso-ventrally; phalangeal formula 2-4-5-6–3 for manus and 2-3-4-(6/5)-(5/4/3) for pes. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Bush and Bambach 2015, Hendy et al. 2009, Carroll 1988 | |||||