identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
E74B87CEFF890749FC44FC29F7D1AF50.text	E74B87CEFF890749FC44FC29F7D1AF50.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Saurischia SEELEY 1887	<div><p>SAURISCHIA SEELEY, 1887</p> <p>SAUROPODOMORPHA VON HUENE, 1932 PROSAUROPODA VON HUENE, 1920 YUNNANOSAURUS YOUNG, 1942 TYPE SPECIES. YUNNANOSAURUS HUANGI YOUNG (1942)</p> <p>Emended diagnosis: As for type species (see below).</p> <p>Distribution: Dark Red Beds of the Lower Lufeng Formation (Lower Jurassic), Lufeng County, Yunnan Province, China.</p> <p>Comments: Young (1951) erected a second species, Yunnanosaurus robustus, based on a partial skeleton including cranial remains (IVPP V94). Although Steel (1970) regarded Y. huangi and Y. robustus as separate valid species, most authors have regarded the latter as either a junior subjective synonym of Y. huangi (e.g. Galton, 1990; Galton &amp; Upchurch, 2004) or L. huenei (e.g. Rozhdestvensky, 1965). In order to stabilize the genus, we base our diagnosis of Yunnanosaurus on the type species only. The validity of Y. robustus and its referral to Yunnanosaurus will be addressed elsewhere.</p> </div>	https://treatment.plazi.org/id/E74B87CEFF890749FC44FC29F7D1AF50	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Barrett, Paul M.;Upchurch, P.;Zhou, X. - D.;Wang, X. - L.	Barrett, Paul M., Upchurch, P., Zhou, X. - D., Wang, X. - L. (2007): The skull of Yunnanosaurus huangi Young, 1942 (Dinosauria: Prosauropoda) from the Lower Lufeng Formation (Lower Jurassic) of Yunnan, China. Zoological Journal of the Linnean Society 150 (2): 319-341, DOI: 10.1111/j.1096-3642.2007.00290.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2007.00290.x
E74B87CEFF89074AFC0BF9DAF7D4AA48.text	E74B87CEFF89074AFC0BF9DAF7D4AA48.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Yunnanosaurus huangi Young 1942	<div><p>YUNNANOSAURUS HUANGI YOUNG, 1942</p> <p>1942 Y. huangi (Young, 1942: 64, figs 1–17).</p> <p>1965 L. huenei Young, 1941 (Rozhdestvensky, 1965: 103).</p> <p>1970 Y. huangi (Steel, 1970: 52).</p> <p>1981 Massospondylus huenei, Young, 1941 (Cooper, 1981: 804).</p> <p>1990 Y. huangi (Galton, 1990: 335).</p> <p>2004 Y. huangi (Galton &amp; Upchurch, 2004: 236).</p> <p>Holotype: NGMJ 004546, an almost complete skeleton consisting of the following: the skull, atlas, and axis; three other cervical vertebrae; nine dorsal vertebrate and dorsal rib fragments; sacrum; eight caudal vertebrae and six haemal arches; left scapula; sternum; right and left humeri; right ulna; partial left manus; right and left ilia, pubes, and ischia; right and left femora, tibiae, fibulae, astragali, and calcanea; and two metatarsals.</p> <p>Locality and horizon: Huangchiatien village, Lufeng County, Yunnan Province, China. Dark Red Beds of the Lower Lufeng Formation, Lower Jurassic (Sinemurian: Luo &amp; Wu, 1994, 1995).</p> <p>Emended diagnosis (cranial features only): Small external naris (∼10% of maximum skull length); robust, rostrocaudally expanded nasal process of the premaxilla; presence of a ventral projection from the caudal margin of ascending maxillary process; lack of nutritive foramina on lateral surface of maxilla; shallow, subcircular fossa present on lateral surface of ventral lachrymal process; presence of a midline boss near to the rostral end of the frontals; prominent midline boss present on the parietals; rostrolateral process of the parietal rostrocaudally expanded relative to the width of the caudolateral process; maxillary teeth are mesiodistally narrow and lack denticles.</p> <p>Comments: Young (1942) designated this specimen with the catalogue number V 20. This number was later changed to NGMJ V 0116 (as indicated on the label within the display case), but the correct accession number is now NGMJ 004546. The postcranial skeleton of Yunnanosaurus will be described elsewhere.</p> <p>The original diagnosis of Y. huangi incorporated a large number of cranial characteristics (Young, 1942: 64–65; see also Young, 1951: 56): skull elongate, with width to length ratio of 3.8; skull equivalent in length to four anterior caudal vertebrae; external nostril small; antorbital fenestra large; orbit circular and largest skull opening; supratemporal fenestra ‘beanshaped’ in dorsal view and partly visible in lateral view (i.e. the upper temporal bar is ventrally displaced with respect to the skull roof); lower jaw slender; small external mandibular fenestra; 15 maxillary and 13 dentary teeth; teeth slender, rounded, and pointed; teeth generally lacking denticles. Some of these characters do appear to be unique to Yunnanosaurus and have been modified for inclusion in the emended diagnosis given above (e.g. tooth morphology). However, many of the other features listed do not differ substantially from those seen in other basal sauropodomorphs (e.g. tooth counts, orbit size, and shape, ventral deflection of the upper temporal bar and size of the external mandibular fenestra) and cannot be regarded as diagnostic for Yunnanosaurus (see below for further details).</p> </div>	https://treatment.plazi.org/id/E74B87CEFF89074AFC0BF9DAF7D4AA48	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Barrett, Paul M.;Upchurch, P.;Zhou, X. - D.;Wang, X. - L.	Barrett, Paul M., Upchurch, P., Zhou, X. - D., Wang, X. - L. (2007): The skull of Yunnanosaurus huangi Young, 1942 (Dinosauria: Prosauropoda) from the Lower Lufeng Formation (Lower Jurassic) of Yunnan, China. Zoological Journal of the Linnean Society 150 (2): 319-341, DOI: 10.1111/j.1096-3642.2007.00290.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2007.00290.x
