Morphobank

Project 2816: A. C. Pritchard, J. A. Gauthier, M. Hanson, G. S. Bever, B. S. Bhullar. 2018. A tiny Triassic saurian from Connecticut and the early evolution of the diapsid feeding apparatus. Nature Communications. 9:1213.

Specimen: † Colobops noviportensis (YPM/PU:18835)
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Abstract

Following the Permo-Triassic Extinction, large-bodied diapsid reptiles with a body length greater than one meter rapidly expanded their ecological roles. This diversification is reflected in enormous disparity in the development of the rostrum and adductor chamber. However, it is unclear how marked the diversity of the feeding apparatus was in contemporary small-bodied diapsids. Here we describe the remarkably small skull (2.5 cm long) of a saurian reptile, Colobops noviportensis, gen. et sp. nov., from the Triassic New Haven Arkose of Connecticut, USA. The taxon possesses an exceptionally reinforced snout and strikingly expanded supratemporal fossae for adductor musculature relative to any known Mesozoic or Recent diapsid of similar size. Our phylogenetic analyses support C. noviportensis as an early diverging pan-archosaur. Colobops noviportensis reveals extraordinary disparity of the feeding apparatus in small-bodied early Mesozoic diapsids, and a suite of morphologies, functionally related to a powerful bite, unknown in any small-bodied diapsid.

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Article DOI: 10.1038/s41467-018-03508-1

Project DOI: 10.7934/P2816, http://dx.doi.org/10.7934/P2816

This project contains	Matrices
10 Media 1 Matrix 3 Documents 57 Taxa 1 Specimen 323 Characters Total size of project's media files: 614.39M Download Project SDD File	Total scored cells: 11484 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 323 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 689 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:300/23

Currently Viewing:
MorphoBank Project 2816

Creation Date:
29 January 2018
Publication Date:
23 April 2018
Media downloads: 2
Matrix downloads: 35

This research
supported by

Authors' Institutions

Yale University

Johns Hopkins University

Members

Adam Pritchard
Project Administrator

323

11484
(10992, 0, 492)

Taxonomic Overview for Matrix 'M24987' (57 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Petrolacosaurus kansasensis Taxon name last Modified on 01/29/18	23	280	278	0	22	0	0	1
[2] † Eohyosaurus wolvaardti Taxon name last Modified on 01/29/18	258	66	65	0	0	0	0	1
[3] † Scaphonyx baby Taxon name last Modified on 01/29/18	224	100	99	0	0	0	0	1
[4] † Orovenator mayorum Taxon name last Modified on 01/29/18	230	88	88	0	5	0	0	1
[5] † Huehuecuetzpalli mixtecus Taxon name last Modified on 01/29/18	142	179	179	0	2	0	0	1
[6] Shinisaurus crocodilurus Taxon name last Modified on 01/29/18	17	284	284	0	22	0	0	1
[7] Iguana iguana Taxon name last Modified on 01/29/18	14	297	297	0	12	0	0	1
[8] Uromastyx acanthinura Taxon name last Modified on 01/29/18	23	284	284	0	16	0	0	1
[9] † Gephyrosaurus bridensis Taxon name last Modified on 01/29/18	74	232	232	0	17	0	0	1
[10] † Diphydontosaurus avonis Taxon name last Modified on 01/29/18	106	218	215	0	2	0	0	1
[11] † Planocephalosaurus robinsonae Taxon name last Modified on 01/29/18	103	221	218	0	2	0	0	1
[12] † Clevosaurus brasiliensis Taxon name last Modified on 01/29/18	198	125	123	0	2	0	0	1
[13] † Clevosaurus hudsoni Taxon name last Modified on 01/29/18	31	284	281	0	11	0	0	1
[14] † Protorosaurus speneri Taxon name last Modified on 01/29/18	68	244	244	0	11	0	0	1
[15] † Pamelaria dolichotrachela Taxon name last Modified on 01/29/18	109	206	206	0	8	0	0	1
[16] † Azendohsaurus madagaskarensis Taxon name last Modified on 01/29/18	13	300	299	0	11	0	0	1
[17] † Azendohsaurus laaroussi Taxon name last Modified on 01/29/18	285	36	36	0	2	0	0	1
[18] † Teraterpeton hrynewichorum Taxon name last Modified on 01/29/18	176	144	144	0	3	0	0	1
[19] † Trilophosaurus buettneri Taxon name last Modified on 01/29/18	10	294	293	0	20	0	0	1
[20] † Trilophosaurus jacobsi Taxon name last Modified on 01/29/18	145	172	172	0	6	0	0	1
[21] † Prolacerta broomi Taxon name last Modified on 01/29/18	17	301	296	0	10	0	0	1
[22] † Proterosuchus fergusi Taxon name last Modified on 01/29/18	38	279	278	0	7	0	0	1
[23] † Proterosuchus yuani Taxon name last Modified on 01/29/18	88	228	228	0	7	0	0	1
[24] † TropidostomaZone_Youngina Taxon name last Modified on 01/29/18	126	194	194	0	3	0	0	1
[25] † Youngina capensis Taxon name last Modified on 01/29/18	35	274	274	0	14	0	0	1
[26] † Mesosuchus browni Taxon name last Modified on 01/29/18	23	291	289	0	11	0	0	1
[27] † Rhynchosaurus articeps Taxon name last Modified on 01/29/18	59	247	246	0	18	0	0	1
[28] † Teyumbaita sulcognathus Taxon name last Modified on 01/29/18	116	190	190	0	17	0	0	1
[29] † Macrocnemus bassanii Taxon name last Modified on 01/29/18	84	233	232	0	7	0	0	1
[30] † Macrocnemus fuyuanensis Taxon name last Modified on 01/29/18	106	211	211	0	6	0	0	1
[31] Langobardisaurus pandoflii concatenation Taxon name last Modified on 01/29/18	146	174	174	0	3	0	0	1
[32] † Tanystropheus longobardicus Taxon name last Modified on 01/29/18	27	290	287	0	9	0	0	1
[33] † Tanytrachelos ahynis Taxon name last Modified on 01/29/18	133	185	185	0	5	0	0	1
[34] † Amotosaurus rotfeldensis Taxon name last Modified on 01/29/18	151	169	168	0	4	0	0	1
[35] † Erythrosuchus africanus Taxon name last Modified on 01/29/18	50	265	265	0	8	0	0	1
[36] † Euparkeria capensis Taxon name last Modified on 01/29/18	64	250	250	0	9	0	0	1
[37] † Batrachotomus kupferzellensis Taxon name last Modified on 01/29/18	48	260	258	0	16	0	0	1
[38] † Coelophysis bauri Taxon name last Modified on 01/29/18	61	231	229	0	33	0	0	1
[39] † Plateosaurus engelhardti Taxon name last Modified on 01/29/18	45	247	246	0	32	0	0	1
[40] † Howesia browni Taxon name last Modified on 01/29/18	199	120	119	0	5	0	0	1
[41] † Claudiosaurus germaini Taxon name last Modified on 01/29/18	73	244	243	0	7	0	0	1
[42] † Hovasaurus boulei Taxon name last Modified on 01/29/18	117	203	201	0	5	0	0	1
[43] † Thadeosaurus colcanapi Taxon name last Modified on 01/29/18	169	147	147	0	7	0	0	1
[44] † Acerosodontosaurus piveteaui Taxon name last Modified on 01/29/18	214	103	103	0	6	0	0	1
[45] † Coelurosauravus elivensis Taxon name last Modified on 01/29/18	160	154	154	0	9	0	0	1
[46] † Weigeltisaurus jaekeli Taxon name last Modified on 01/29/18	199	120	120	0	4	0	0	1
[47] † Rautiania spp. Taxon name last Modified on 01/29/18	237	79	79	0	7	0	0	1
[48] † Dolabrosaurus aquatilis Taxon name last Modified on 01/29/18	276	44	44	0	3	0	0	1
[49] † CoelophysisDrepanosaur Taxon name last Modified on 01/29/18	213	97	97	0	13	0	0	1
[50] † Drepanosaurus unguicaudatus Taxon name last Modified on 01/29/18	224	94	94	0	5	0	0	1
[51] † Hypuronector limnaios Taxon name last Modified on 01/29/18	247	72	72	0	4	0	0	1
[52] † Icarosaurus siefkeri Taxon name last Modified on 01/29/18	157	163	163	0	3	0	0	1
[53] † Kuehneosaurus latus Taxon name last Modified on 01/29/18	55	269	264	0	4	0	0	1
[54] † Megalancosaurus preonensis Taxon name last Modified on 01/29/18	177	143	143	0	3	0	0	1
[55] † Vallesaurus cenensis Taxon name last Modified on 01/29/18	198	118	118	0	7	0	0	1
[56] † Boreopricea funerea Taxon name last Modified on 01/29/18	119	198	198	0	6	0	0	1
[57] † Colobops noviportensis Taxon name last Modified on 01/29/18	273	51	49	0	1	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	231
Project downloads	183
Matrix downloads	35	Archosauromorph phylogeny (35 downloads);
Media downloads	2	M470349 (1 download); M470345 (1 download);
Document downloads	11	R Directory, including input spreadsheets and linear regression model data (4 downloads); Nexus file for MrBayes Input (3 downloads); Full Output of MrBayes analysis (4 downloads);