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

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MorphoBank Project 2816

Creation Date:
29 January 2018
Publication Date:
23 April 2018
Project views: 27650
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 Last Modified in 01/29/18	23	280	278	0	22	0	0	1
[2] † Eohyosaurus wolvaardti Last Modified in 01/29/18	258	66	65	0	0	0	0	1
[3] † Scaphonyx baby Last Modified in 01/29/18	224	100	99	0	0	0	0	1
[4] † Orovenator mayorum Last Modified in 01/29/18	230	88	88	0	5	0	0	1
[5] † Huehuecuetzpalli mixtecus Last Modified in 01/29/18	142	179	179	0	2	0	0	1
[6] Shinisaurus crocodilurus Last Modified in 01/29/18	17	284	284	0	22	0	0	1
[7] Iguana iguana Last Modified in 01/29/18	14	297	297	0	12	0	0	1
[8] Uromastyx acanthinura Last Modified in 01/29/18	23	284	284	0	16	0	0	1
[9] † Gephyrosaurus bridensis Last Modified in 01/29/18	74	232	232	0	17	0	0	1
[10] † Diphydontosaurus avonis Last Modified in 01/29/18	106	218	215	0	2	0	0	1
[11] † Planocephalosaurus robinsonae Last Modified in 01/29/18	103	221	218	0	2	0	0	1
[12] † Clevosaurus brasiliensis Last Modified in 01/29/18	198	125	123	0	2	0	0	1
[13] † Clevosaurus hudsoni Last Modified in 01/29/18	31	284	281	0	11	0	0	1
[14] † Protorosaurus speneri Last Modified in 01/29/18	68	244	244	0	11	0	0	1
[15] † Pamelaria dolichotrachela Last Modified in 01/29/18	109	206	206	0	8	0	0	1
[16] † Azendohsaurus madagaskarensis Last Modified in 01/29/18	13	300	299	0	11	0	0	1
[17] † Azendohsaurus laaroussi Last Modified in 01/29/18	285	36	36	0	2	0	0	1
[18] † Teraterpeton hrynewichorum Last Modified in 01/29/18	176	144	144	0	3	0	0	1
[19] † Trilophosaurus buettneri Last Modified in 01/29/18	10	294	293	0	20	0	0	1
[20] † Trilophosaurus jacobsi Last Modified in 01/29/18	145	172	172	0	6	0	0	1
[21] † Prolacerta broomi Last Modified in 01/29/18	17	301	296	0	10	0	0	1
[22] † Proterosuchus fergusi Last Modified in 01/29/18	38	279	278	0	7	0	0	1
[23] † Proterosuchus yuani Last Modified in 01/29/18	88	228	228	0	7	0	0	1
[24] † TropidostomaZone_Youngina Last Modified in 01/29/18	126	194	194	0	3	0	0	1
[25] † Youngina capensis Last Modified in 01/29/18	35	274	274	0	14	0	0	1
[26] † Mesosuchus browni Last Modified in 01/29/18	23	291	289	0	11	0	0	1
[27] † Rhynchosaurus articeps Last Modified in 01/29/18	59	247	246	0	18	0	0	1
[28] † Teyumbaita sulcognathus Last Modified in 01/29/18	116	190	190	0	17	0	0	1
[29] † Macrocnemus bassanii Last Modified in 01/29/18	84	233	232	0	7	0	0	1
[30] † Macrocnemus fuyuanensis Last Modified in 01/29/18	106	211	211	0	6	0	0	1
[31] Langobardisaurus pandoflii concatenation Last Modified in 01/29/18	146	174	174	0	3	0	0	1
[32] † Tanystropheus longobardicus Last Modified in 01/29/18	27	290	287	0	9	0	0	1
[33] † Tanytrachelos ahynis Last Modified in 01/29/18	133	185	185	0	5	0	0	1
[34] † Amotosaurus rotfeldensis Last Modified in 01/29/18	151	169	168	0	4	0	0	1
[35] † Erythrosuchus africanus Last Modified in 01/29/18	50	265	265	0	8	0	0	1
[36] † Euparkeria capensis Last Modified in 01/29/18	64	250	250	0	9	0	0	1
[37] † Batrachotomus kupferzellensis Last Modified in 01/29/18	48	260	258	0	16	0	0	1
[38] † Coelophysis bauri Last Modified in 01/29/18	61	231	229	0	33	0	0	1
[39] † Plateosaurus engelhardti Last Modified in 01/29/18	45	247	246	0	32	0	0	1
[40] † Howesia browni Last Modified in 01/29/18	199	120	119	0	5	0	0	1
[41] † Claudiosaurus germaini Last Modified in 01/29/18	73	244	243	0	7	0	0	1
[42] † Hovasaurus boulei Last Modified in 01/29/18	117	203	201	0	5	0	0	1
[43] † Thadeosaurus colcanapi Last Modified in 01/29/18	169	147	147	0	7	0	0	1
[44] † Acerosodontosaurus piveteaui Last Modified in 01/29/18	214	103	103	0	6	0	0	1
[45] † Coelurosauravus elivensis Last Modified in 01/29/18	160	154	154	0	9	0	0	1
[46] † Weigeltisaurus jaekeli Last Modified in 01/29/18	199	120	120	0	4	0	0	1
[47] † Rautiania spp. Last Modified in 01/29/18	237	79	79	0	7	0	0	1
[48] † Dolabrosaurus aquatilis Last Modified in 01/29/18	276	44	44	0	3	0	0	1
[49] † CoelophysisDrepanosaur Last Modified in 01/29/18	213	97	97	0	13	0	0	1
[50] † Drepanosaurus unguicaudatus Last Modified in 01/29/18	224	94	94	0	5	0	0	1
[51] † Hypuronector limnaios Last Modified in 01/29/18	247	72	72	0	4	0	0	1
[52] † Icarosaurus siefkeri Last Modified in 01/29/18	157	163	163	0	3	0	0	1
[53] † Kuehneosaurus latus Last Modified in 01/29/18	55	269	264	0	4	0	0	1
[54] † Megalancosaurus preonensis Last Modified in 01/29/18	177	143	143	0	3	0	0	1
[55] † Vallesaurus cenensis Last Modified in 01/29/18	198	118	118	0	7	0	0	1
[56] † Boreopricea funerea Last Modified in 01/29/18	119	198	198	0	6	0	0	1
[57] † Colobops noviportensis Last Modified in 01/29/18	273	51	49	0	1	0	0	1

Project views

type	number of views	Individual items viewed (where applicable)
Total project views	27650
Documents list	838
Project overview	1539
Matrix views	1120	Matrix landing page (1007 views); Archosauromorph phylogeny (113 views);
Media views	7418	Media search (2751 views); M470345 (418 views); M470346 (720 views); M470342 (463 views); M470343 (461 views); M470344 (433 views); M470347 (441 views); M470348 (426 views); M470349 (445 views); M470350 (445 views); M470351 (415 views);
Taxon list	11454
Specimen list	1678
Views for media list	2944
Bibliography	659

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	232
Project downloads	184
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);