Morphobank

Project 5132: B. T. Kligman, H-D Sues, K. M. Melstrom. 2024. A new lizard-like reptile with unusual mandibular neurovasculature from the Upper Triassic of Virginia. Journal of Vertebrate Paleontology. 44:1-11.

Specimen: Idiosaura virginiensis (USNM:PAL770102)
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Abstract

Here, we report a new small-bodied reptile taxon, Idiosaura virginiensis gen. et sp. nov., from the Upper Triassic (Carnian) Vinita Formation of the Richmond basin (Newark Supergroup) in east-central Virginia, U.S.A. The material consists of a fragmentary dentary bearing numerous tall cylindrical teeth implanted in a pleurodont fashion into spongy alveolar tissue. Micro-CT scan data reveals an unusual and complex network of interconnected neurovascular canals within the dentary with connections to the alveolar tissue and pulp cavities of the teeth. The external anatomy of the dentary is consistent with that of Triassic kuehneosaurid reptiles, suggesting affinities to that group; the results of a phylogenetic analysis were inconclusive but do not exclude kuehneosaurid relationships. Alongside the recently described Micromenodon pitti (Rhynchocephalia) and Vinitasaura lizae (Lepidosauromorpha), the new taxon adds to the relatively diverse assemblage of small-bodied reptiles known from the Tomahawk microvertebrate bonebed (USNM locality 39981). Relative tooth complexities of Idiosaura virginiensis and Vinitasaura lizae were analyzed using the Orientation Patch Count Rotated method, and results suggest that the rise of lepidosauromorph ecomorphorphologies specializing for feeding on invertebrates occurred in Triassic communities alongside non-lepidosauromorph taxa with similar mandibulo-dental features, as in kuehneosaurs.

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Article DOI: 10.1080/02724634.2024.2353636

Project DOI: 10.7934/P5132, http://dx.doi.org/10.7934/P5132

This project contains	Matrices
1 Media 1 Matrix 121 Taxa 1 Specimen 382 Characters Total size of project's media files: 598.66k Download Project SDD File	Total scored cells: 32351 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 382 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 815 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:382/0

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MorphoBank Project 5132

Creation Date:
15 March 2024
Publication Date:
14 June 2024
Matrix downloads: 3

This research
supported by

Authors' Institutions

National Museum of Natural History, Smithsonian Institution

Members

Ben Kligman
Project Administrator

121

382

32351
(29376, 0, 2975)

Taxonomic Overview for Matrix 'M29714' (121 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] Petrolacosaurus kansensis Taxon name last Modified on 03/15/24	73	298	298	0	11	0	0	1
[2] Eunotosaurus africanus Taxon name last Modified on 03/15/24	110	258	258	0	14	0	0	1
[3] Proganochelys quenstedti Taxon name last Modified on 03/15/24	23	314	314	0	45	0	0	1
[4] Odontochelys semitestacea Taxon name last Modified on 03/15/24	245	128	128	0	9	0	0	1
[5] Claudiosaurus germaini Taxon name last Modified on 03/15/24	146	227	227	0	9	0	0	1
[6] Youngina capensis Taxon name last Modified on 03/15/24	121	255	252	0	9	0	0	1
[7] Acerosodontosaurus piveteaui Taxon name last Modified on 03/15/24	250	129	129	0	3	0	0	1
[8] Coelurosauravus jaekeli Taxon name last Modified on 03/15/24	227	141	141	0	14	0	0	1
[9] Coelurosauravus elivensis Taxon name last Modified on 03/15/24	243	126	126	0	13	0	0	1
[10] Hupehsuchus nanchangensis Taxon name last Modified on 03/15/24	188	189	189	0	5	0	0	1
[11] Chaohusaurus chaoxianensis Taxon name last Modified on 03/15/24	268	105	105	0	9	0	0	1
[12] Cartorhynchus lenticarpus Taxon name last Modified on 03/15/24	234	120	120	0	28	0	0	1
[13] Utatsusaurus hataii Taxon name last Modified on 03/15/24	177	189	189	0	16	0	0	1
[14] Protorosaurus speneri Taxon name last Modified on 03/15/24	127	242	242	0	13	0	0	1
[15] Tanystropheus longobardicus Taxon name last Modified on 03/15/24	124	237	236	0	22	0	0	1
[16] Langobardisaurus pandolfii Taxon name last Modified on 03/15/24	212	149	149	0	21	0	0	1
[17] Macrocnemus fuyuanensis Taxon name last Modified on 03/15/24	186	182	182	0	14	0	0	1
[18] Prolacerta broomi Taxon name last Modified on 03/15/24	37	334	332	0	13	0	0	1
[19] Megalancosaurus preonensis Taxon name last Modified on 03/15/24	234	138	138	0	10	0	0	1
[20] Vallesaurus cenensis Taxon name last Modified on 03/15/24	248	124	124	0	10	0	0	1
[21] Askeptosaurus italicus Taxon name last Modified on 03/15/24	64	297	297	0	21	0	0	1
[22] Philydrosaurus proseilus Taxon name last Modified on 03/15/24	137	231	231	0	14	0	0	1
[23] Champsosaurus lindoei Taxon name last Modified on 03/15/24	98	266	266	0	18	0	0	1
[24] Mesosuchus browni Taxon name last Modified on 03/15/24	49	324	324	0	9	0	0	1
[25] Howesia browni Taxon name last Modified on 03/15/24	232	145	145	0	5	0	0	1
[26] Teyumbaita sulcognathus Taxon name last Modified on 03/15/24	101	265	265	0	16	0	0	1
[27] Hyperodapedon huenei Taxon name last Modified on 03/15/24	76	288	288	0	18	0	0	1
[28] Trilophosaurus buettneri Taxon name last Modified on 03/15/24	60	303	301	0	21	0	0	1
[29] Proterosuchus alexanderi Taxon name last Modified on 03/15/24	93	278	278	0	11	0	0	1
[30] Proterosuchus fergusi Taxon name last Modified on 03/15/24	180	193	193	0	9	0	0	1
[31] Euparkeria capensis Taxon name last Modified on 03/15/24	63	309	308	0	11	0	0	1
[32] Largocephalosaurus qianensis Taxon name last Modified on 03/15/24	144	220	220	0	18	0	0	1
[33] Sinosaurosphargis yunguiensis Taxon name last Modified on 03/15/24	176	180	180	0	26	0	0	1
[34] Cyamodus hildegardis Taxon name last Modified on 03/15/24	183	189	189	0	10	0	0	1
[35] Placodus gigas Taxon name last Modified on 03/15/24	28	328	326	0	28	0	0	1
[36] Wumengosaurus delicatomandibularis Taxon name last Modified on 03/15/24	166	205	205	0	11	0	0	1
[37] Serpianosaurus mirigioliensis Taxon name last Modified on 03/15/24	65	294	292	0	25	0	0	1
[38] Lariosaurus calcagnii Taxon name last Modified on 03/15/24	108	253	253	0	21	0	0	1
[39] Pistosaurus longaevus Taxon name last Modified on 03/15/24	189	168	168	0	25	0	0	1
[40] Diphydontosaurus avonis Taxon name last Modified on 03/15/24	129	234	234	0	19	0	0	1
[41] Planocephalosaurus robinsonae Taxon name last Modified on 03/15/24	194	170	169	0	19	0	0	1
[42] Clevosaurus hudsoni Taxon name last Modified on 03/15/24	103	258	258	0	21	0	0	1
[43] Palaeopleurosaurus posidoniae Taxon name last Modified on 03/15/24	106	252	252	0	24	0	0	1
[44] Priosphenodon avelasi Taxon name last Modified on 03/15/24	133	216	216	0	33	0	0	1
[45] Sphenodon punctatus Taxon name last Modified on 03/15/24	9	347	345	0	28	0	0	1
[46] Vellbergia bartholomaei Taxon name last Modified on 03/15/24	314	66	66	0	2	0	0	1
[47] Taytalura alcoberi Taxon name last Modified on 03/15/24	263	115	114	0	5	0	0	1
[48] Paliguana whitei Taxon name last Modified on 03/15/24	270	107	107	0	5	0	0	1
[49] Fraxinisaura rozynekae Taxon name last Modified on 03/15/24	258	120	120	0	4	0	0	1
[50] Marmoretta oxoniensis Taxon name last Modified on 03/15/24	160	213	211	0	11	0	0	1
[51] Megachirella wachtleri Taxon name last Modified on 03/15/24	196	173	173	0	13	0	0	1
[52] Sophineta cracoviensis Taxon name last Modified on 03/15/24	218	156	156	0	8	0	0	1
[53] Gephyrosaurus bridensis Taxon name last Modified on 03/15/24	59	312	310	0	13	0	0	1
[54] Oculudentavis khaungraae Taxon name last Modified on 03/15/24	110	255	255	0	17	0	0	1
[55] Scandensia ciervensis Taxon name last Modified on 03/15/24	232	148	148	0	2	0	0	1
[56] Hongshanxi xiei Taxon name last Modified on 03/15/24	183	189	189	0	10	0	0	1
[57] Bellairsia combined Taxon name last Modified on 03/15/24	121	259	259	0	2	0	0	1
[58] Huehuecuetzpalli mixtecus Taxon name last Modified on 03/15/24	163	200	200	0	19	0	0	1
[59] Ardeosaurus brevipes Taxon name last Modified on 03/15/24	209	165	165	0	8	0	0	1
[60] Eichstaettisaurus schroederi Taxon name last Modified on 03/15/24	174	189	189	0	19	0	0	1
[61] Gobekko cretacicus Taxon name last Modified on 03/15/24	263	103	103	0	16	0	0	1
[62] Dactylocnemis pacificus Taxon name last Modified on 03/15/24	21	325	325	0	36	0	0	1
[63] Gekko gecko Taxon name last Modified on 03/15/24	3	346	343	0	36	0	0	1
[64] Coleonyx variegatus Taxon name last Modified on 03/15/24	8	338	336	0	38	0	0	1
[65] Paramacellodus oweni Taxon name last Modified on 03/15/24	288	94	94	0	0	0	0	1
[66] Plestiodon fasciatus Taxon name last Modified on 03/15/24	6	353	351	0	25	0	0	1
[67] Mabuya mabouya Taxon name last Modified on 03/15/24	4	357	355	0	23	0	0	1
[68] Xantusia vigilis Taxon name last Modified on 03/15/24	4	344	342	0	36	0	0	1
[69] Cordylus niger Taxon name last Modified on 03/15/24	7	360	360	0	15	0	0	1
[70] Broadleysaurus major Taxon name last Modified on 03/15/24	8	361	360	0	14	0	0	1
[71] Meyasaurus diazromerali Taxon name last Modified on 03/15/24	164	209	208	0	10	0	0	1
[72] Tepexisaurus tepexii Taxon name last Modified on 03/15/24	186	186	186	0	10	0	0	1
[73] Dalinghosaurus longidigitus Taxon name last Modified on 03/15/24	215	153	153	0	14	0	0	1
[74] Globaura venusta Taxon name last Modified on 03/15/24	143	228	224	0	15	0	0	1
[75] Slavoia darevskii Taxon name last Modified on 03/15/24	94	276	273	0	15	0	0	1
[76] Trioceros jacksonii Taxon name last Modified on 03/15/24	12	324	324	0	46	0	0	1
[77] Uromastyx aegyptia Taxon name last Modified on 03/15/24	3	353	352	0	27	0	0	1
[78] Priscagama gobiensis Taxon name last Modified on 03/15/24	130	225	224	0	28	0	0	1
[79] Pleurodontagama aenigmatoides Taxon name last Modified on 03/15/24	222	148	148	0	12	0	0	1
[80] Igua minuta Taxon name last Modified on 03/15/24	267	111	111	0	4	0	0	1
[81] Polrussia mongoliensis Taxon name last Modified on 03/15/24	258	114	114	0	10	0	0	1
[82] Oplurus cyclurus Taxon name last Modified on 03/15/24	9	352	350	0	23	0	0	1
[83] Stenocercus scapularis Taxon name last Modified on 03/15/24	5	357	357	0	20	0	0	1
[84] Hoplocercus spinosus Taxon name last Modified on 03/15/24	9	356	356	0	17	0	0	1
[85] Pristidactylus scapulatus Taxon name last Modified on 03/15/24	5	362	360	0	17	0	0	1
[86] Iguana iguana Taxon name last Modified on 03/15/24	0	366	365	0	17	0	0	1
[87] Polychrus marmoratus Taxon name last Modified on 03/15/24	2	363	358	0	22	0	0	1
[88] Crotaphytus collaris Taxon name last Modified on 03/15/24	2	361	359	0	21	0	0	1
[89] Liolaemus signifer Taxon name last Modified on 03/15/24	3	361	359	0	20	0	0	1
[90] Leiocephalus carinatus Taxon name last Modified on 03/15/24	4	364	362	0	16	0	0	1
[91] Phrynosoma modestum Taxon name last Modified on 03/15/24	8	346	344	0	30	0	0	1
[92] Timon lepidus Taxon name last Modified on 03/15/24	6	359	358	0	18	0	0	1
[93] Lacerta viridis Taxon name last Modified on 03/15/24	4	357	356	0	22	0	0	1
[94] Teius teyou Taxon name last Modified on 03/15/24	2	364	363	0	17	0	0	1
[95] Gobinatus arenosus Taxon name last Modified on 03/15/24	112	259	256	0	14	0	0	1
[96] Gilmoreteius chulsanensis Taxon name last Modified on 03/15/24	41	323	320	0	21	0	0	1
[97] Petracola ventrimaculatus Taxon name last Modified on 03/15/24	7	353	352	0	23	0	0	1
[98] Xenosaurus grandis Taxon name last Modified on 03/15/24	2	360	359	0	21	0	0	1
[99] Pseudopus apodus Taxon name last Modified on 03/15/24	1	313	311	0	70	0	0	1
[100] Elgaria multicarinata Taxon name last Modified on 03/15/24	3	364	364	0	15	0	0	1
[101] Heloderma suspectum Taxon name last Modified on 03/15/24	4	354	353	0	25	0	0	1
[102] Lanthanotus borneensis Taxon name last Modified on 03/15/24	1	354	353	0	28	0	0	1
[103] Varanus salvator Taxon name last Modified on 03/15/24	6	356	355	0	21	0	0	1
[104] Aigialosaurus Taxon name last Modified on 03/15/24	143	217	216	0	23	0	0	1
[105] Adriosaurus suessi Taxon name last Modified on 03/15/24	268	107	107	0	7	0	0	1
[106] Pontosaurus Taxon name last Modified on 03/15/24	140	217	215	0	27	0	0	1
[107] Najash rionegrina Taxon name last Modified on 03/15/24	258	77	77	0	47	0	0	1
[108] Dinilysia patagonica Taxon name last Modified on 03/15/24	64	229	229	0	89	0	0	1
[109] Pachyrhachis problematicus Taxon name last Modified on 03/15/24	132	172	171	0	79	0	0	1
[110] Cylindrophis ruffus Taxon name last Modified on 03/15/24	7	257	257	0	118	0	0	1
[111] Xenopeltis unicolor Taxon name last Modified on 03/15/24	2	248	245	0	135	0	0	1
[112] Anilius scytale Taxon name last Modified on 03/15/24	7	258	257	0	118	0	0	1
[113] Spathorhynchus fossorium Taxon name last Modified on 03/15/24	175	169	169	0	38	0	0	1
[114] Rhineura floridana Taxon name last Modified on 03/15/24	7	257	257	0	118	0	0	1
[115] Bipes biporus Taxon name last Modified on 03/15/24	3	290	290	0	89	0	0	1
[116] Blanus cinereus Taxon name last Modified on 03/15/24	14	253	253	0	115	0	0	1
[117] Dibamus novaeguineae Taxon name last Modified on 03/15/24	11	256	255	0	116	0	0	1
[118] Pamelina polonica Taxon name last Modified on 03/15/24	218	154	153	0	11	0	0	1
[119] Kuehneosaurus latus Taxon name last Modified on 03/15/24	85	278	278	0	19	0	0	1
[120] Icarosaurus siefkeri Taxon name last Modified on 03/15/24	236	135	135	0	11	0	0	1
[121] Idiosaura virginiensis Taxon name last Modified on 03/15/24	357	25	25	0	0	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	3
Matrix downloads	3	Character/Taxon matrix for Idiosaura virginiensis (3 downloads);