Morphobank

Project 5284: P. M. Barrett, J. N. Choiniere. 2024. Melanorosaurus readi Haughton, 1924 (Dinosauria, Sauropodomorpha) from the Late Triassic of South Africa: osteology and designation of a lectotype. Journal of Vertebrate Paleontology. 44 (1):null.

Specimen: † Neosauropoda (unvouchered)
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Abstract

The sauropodiform sauropodomorph dinosaur Melanorosaurus readi Haughton, 1924, from the lower Elliot Formation (Norian) of South Africa, has had a checkered taxonomic history. This is due to the lack of published information on the original syntype material and the use of referred specimens as the primary source of anatomical information on the taxon. Here, we present a revised osteology of Melanorosaurus based solely on the syntype series and argue that the latter includes the remains of a single, associated individual that we designate the lectotype. The species can be diagnosed on the basis of features of the caudal vertebrae and ilium but we restrict the hypodigm to the lectotype pending detailed reassessment of all referred specimens. Melanorosaurus has been used as an external specifier in the definition of Sauropoda, but given the fragmentary nature of the material, its lack of clear ‘sauropod-like’ features, and its phylogenetic lability we suggest that this is no longer appropriate.

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Article DOI: 10.1080/02724634.2024.2337802

Project DOI: 10.7934/P5284, http://dx.doi.org/10.7934/P5284

This project contains	Matrices
1 Media 1 Matrix 61 Taxa 2 Specimens 365 Characters Total size of project's media files: 96.11k Download Project SDD File	Total scored cells: 12074 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 365 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 801 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:311/54

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MorphoBank Project 5284

Creation Date:
04 June 2024
Publication Date:
04 June 2024

Authors' Institutions

Natural History Museum, London

University of the Witwatersrand

Members

MorphoBank Curator
Project Administrator

365

12074
(12066, 0, 8)

Taxonomic Overview for Matrix 'M29860' (61 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Euparkeria Taxon name last Modified on 06/04/24	73	292	292	0	0	0	0	1
[2] † Crurotarsi Taxon name last Modified on 06/04/24	30	342	334	0	1	0	0	1
[3] † Marasuchus Taxon name last Modified on 06/04/24	165	200	200	0	0	0	0	1
[4] † Aardonyx Taxon name last Modified on 06/04/24	157	209	208	0	0	0	0	1
[5] † Adeopapposaurus Taxon name last Modified on 06/04/24	3	371	362	0	0	0	0	1
[6] † Anchisaurus Taxon name last Modified on 06/04/24	88	280	277	0	0	0	0	1
[7] † Antetonitrus Taxon name last Modified on 06/04/24	221	150	144	0	0	0	0	1
[8] † Barapasaurus Taxon name last Modified on 06/04/24	263	103	102	0	0	0	0	1
[9] † Blikanasaurus Taxon name last Modified on 06/04/24	308	57	57	0	0	0	0	1
[10] † Camelotia Taxon name last Modified on 06/04/24	306	60	59	0	0	0	0	1
[11] † Cetiosaurus Taxon name last Modified on 06/04/24	229	138	136	0	0	0	0	1
[12] † Chindesaurus Taxon name last Modified on 06/04/24	301	64	64	0	0	0	0	1
[13] † Chromogisaurus Taxon name last Modified on 06/04/24	316	51	49	0	0	0	0	1
[14] † Coloradisaurus Taxon name last Modified on 06/04/24	93	273	272	0	0	0	0	1
[15] † Efraasia Taxon name last Modified on 06/04/24	66	300	299	0	0	0	0	1
[16] † Eoraptor Taxon name last Modified on 06/04/24	112	255	253	0	0	0	0	1
[17] † Eucnemesaurus fortis Taxon name last Modified on 06/04/24	301	66	64	0	0	0	0	1
[18] † Eucnemesaurus entaxonis Taxon name last Modified on 06/04/24	268	98	97	0	0	0	0	1
[19] † Glacialisaurus Taxon name last Modified on 06/04/24	338	28	27	0	0	0	0	1
[20] † Gongxianosaurus Taxon name last Modified on 06/04/24	282	84	83	0	0	0	0	1
[21] † Guaibasaurus Taxon name last Modified on 06/04/24	204	164	161	0	0	0	0	1
[22] † Herrerasaurus Taxon name last Modified on 06/04/24	15	350	349	0	1	0	0	1
[23] † Isanosaurus Taxon name last Modified on 06/04/24	331	34	34	0	0	0	0	1
[24] † Jingshanosaurus Taxon name last Modified on 06/04/24	74	292	291	0	0	0	0	1
[25] † Ledumahadi Taxon name last Modified on 06/04/24	323	45	42	0	0	0	0	1
[26] † Leonerasaurus Taxon name last Modified on 06/04/24	272	94	93	0	0	0	0	1
[27] † Lessemsaurus Taxon name last Modified on 06/04/24	223	146	142	0	0	0	0	1
[28] † Leyesaurus Taxon name last Modified on 06/04/24	231	136	134	0	0	0	0	1
[29] † Lufengosaurus Taxon name last Modified on 06/04/24	33	337	332	0	0	0	0	1
[30] † Mamenchisaurus Taxon name last Modified on 06/04/24	56	310	309	0	0	0	0	1
[31] † Massospondylus Taxon name last Modified on 06/04/24	6	364	359	0	0	0	0	1
[32] † NMQR3314 Taxon name last Modified on 06/04/24	86	285	279	0	0	0	0	1
[33] † NMQR1551 Taxon name last Modified on 06/04/24	219	149	146	0	0	0	0	1
[34] † Mussaurus Taxon name last Modified on 06/04/24	172	194	193	0	0	0	0	1
[35] † Neosauropoda Taxon name last Modified on 06/04/24	19	361	346	0	0	0	0	1
[36] † Neotheropoda Taxon name last Modified on 06/04/24	9	369	356	0	0	0	0	1
[37] † Omeisaurus Taxon name last Modified on 06/04/24	59	306	306	0	0	0	0	1
[38] † Ornithischia Taxon name last Modified on 06/04/24	22	353	343	0	0	0	0	1
[39] † Panphagia Taxon name last Modified on 06/04/24	229	137	135	0	1	0	0	1
[40] † Pantydraco Taxon name last Modified on 06/04/24	175	191	190	0	0	0	0	1
[41] † Patagosaurus Taxon name last Modified on 06/04/24	216	151	149	0	0	0	0	1
[42] † Plateosaurus engelhardti Taxon name last Modified on 06/04/24	1	368	364	0	0	0	0	1
[43] † Plateosaurus gracilis Taxon name last Modified on 06/04/24	147	220	218	0	0	0	0	1
[44] † Plateosauravus Taxon name last Modified on 06/04/24	239	128	126	0	0	0	0	1
[45] † Pulanesaura Taxon name last Modified on 06/04/24	294	74	71	0	0	0	0	1
[46] † PVL 3808 Taxon name last Modified on 06/04/24	222	144	143	0	0	0	0	1
[47] † Ruehleia Taxon name last Modified on 06/04/24	202	163	163	0	0	0	0	1
[48] † Sarahsaurus Taxon name last Modified on 06/04/24	55	317	310	0	0	0	0	1
[49] † Saturnalia Taxon name last Modified on 06/04/24	134	233	231	0	0	0	0	1
[50] † Seitaad Taxon name last Modified on 06/04/24	267	99	98	0	0	0	0	1
[51] † Shunosaurus Taxon name last Modified on 06/04/24	62	304	303	0	0	0	0	1
[52] † Silesaurus Taxon name last Modified on 06/04/24	116	249	249	0	0	0	0	1
[53] † Spinophorosaurus Taxon name last Modified on 06/04/24	239	132	126	0	0	0	0	1
[54] † Staurikosaurus Taxon name last Modified on 06/04/24	217	148	148	0	0	0	0	1
[55] † Tazoudasaurus Taxon name last Modified on 06/04/24	182	186	183	0	0	0	0	1
[56] † Thecodontosaurus Taxon name last Modified on 06/04/24	123	244	242	0	0	0	0	1
[57] † Unaysaurus Taxon name last Modified on 06/04/24	213	152	152	0	0	0	0	1
[58] † Vulcanodon Taxon name last Modified on 06/04/24	252	118	113	0	0	0	0	1
[59] † Xingxiulong Taxon name last Modified on 06/04/24	124	244	241	0	0	0	0	1
[60] † Yunnanosaurus Taxon name last Modified on 06/04/24	79	290	286	0	0	0	0	1
[61] † Melanorosaurus readi 3449 type Taxon name last Modified on 06/04/24	296	64	64	0	5	0	0	1