Morphobank

Project 1194: P. S. Romano, V. Gallo, R. R. Ramos, L. Antonioli. 2014. Atolchelys lepida , a new side-necked turtle from the Early Cretaceous of Brazil and the age of crown Pleurodira. Biology Letters. 10 (7):20140290.

Specimen: † Atolchelys (UERJ.MC:2)

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Abstract

We report a new pleurodiran turtle from the Barremian Morro do Chaves Formation, Sergipe-Alagoas Basin, Brazil. We tested the phylogenetic position of Atolchelys lepida gen. et sp. nov. by including it in a comprehensive cladistic analysis of pleurodires. The new species is a basal member of Bothremydidae and simultaneously the oldest unambiguous crown Pleurodira. The biogeographic and chronostratigraphic significance of the finding has implications for the calibration of molecular clocks studies by pushing back the minimum age of crown Pleurodira by more than 12 Ma (ca. 125 Ma). The reanalysis of Pelomedusoides relationships provides evidence that the early evolution and relationships among the main lineages of side-necked turtles can be explained, at least partially, by a sequence of vicariance events.

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Article DOI: 10.1098/rsbl.2014.0290

Project DOI: 10.7934/P1194, http://dx.doi.org/10.7934/P1194

This project contains	Matrices
1 Media 1 Matrix 49 Taxa 1 Specimen 175 Characters Total size of project's media files: 135.89k Download Project SDD File	Total scored cells: 5540 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 175 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 844 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:175/0

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MorphoBank Project 1194

Creation Date:
23 May 2014
Publication Date:
30 July 2014
Project views: 38827
Matrix downloads: 95

Authors' Institutions

Universidade Federal do Rio De Janeiro (UFRJ)

Universidade do Estado do Rio de Janeiro

Universidade Federal de Vicosa

Members

Pedro Romano
Project Administrator

175

0
(0, 0, 0)

MorphoBank Curator
Full membership

5540
(5540, 0, 0)

Jamal Irving
Full membership

0
(0, 0, 0)

Taxonomic Overview for Matrix 'M2816' (49 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] Outgroup Last Modified in 07/07/14	38	140	137	0	0	0	0	3
[2] † Proganochelys Last Modified in 10/13/14	6	169	169	0	0	0	0	3
[3] † Australochelys Last Modified in 10/13/14	127	48	48	0	0	0	0	3
[4] † Palaeochersis Last Modified in 10/13/14	106	69	69	0	0	0	0	3
[5] † Kayentachelys Last Modified in 10/13/14	4	171	171	0	0	0	0	3
[6] † Selmacryptodira Last Modified in 10/13/14	1	219	174	0	0	0	0	3
[7] Chelidae Last Modified in 07/07/14	1	201	174	0	0	0	0	3
[8] Pelomedusidae Last Modified in 07/07/14	0	190	175	0	0	0	0	3
[9] † Sokatra Last Modified in 10/22/14	89	86	86	0	0	0	0	3
[10] † Araripemys Last Modified in 10/13/14	8	169	167	0	0	0	0	3
[11] † Laganemys Last Modified in 10/13/14	18	157	157	0	0	0	0	3
[12] † Atolchelys Last Modified in 10/13/14	108	68	67	0	0	0	0	3
[13] † Euraxemys Last Modified in 10/13/14	7	168	168	0	0	0	0	3
[14] † Dirqadim Last Modified in 10/13/14	70	105	105	0	0	0	0	3
[15] Podocnemididae Last Modified in 07/07/14	0	197	175	0	0	0	0	3
[16] † Hamadachelys Last Modified in 10/13/14	59	116	116	0	0	0	0	3
[17] † Brasilemys Last Modified in 10/13/14	66	109	109	0	0	0	0	3
[18] † Cearachelys Last Modified in 10/13/14	12	168	163	0	0	0	0	3
[19] † Galianemys emringeri Last Modified in 10/13/14	67	109	108	0	0	0	0	3
[20] † Galianemys whitei Last Modified in 10/13/14	66	109	109	0	0	0	0	3
[21] † Kurmademys Last Modified in 10/13/14	21	154	154	0	0	0	0	3
[22] † Kinkonychelys Last Modified in 10/13/14	91	84	84	0	0	0	0	3
[23] † Sankuchemys Last Modified in 10/13/14	110	65	65	0	0	0	0	3
[24] † Foxemys Last Modified in 10/13/14	11	166	164	0	0	0	0	3
[25] † Polysternon Last Modified in 10/13/14	48	128	127	0	0	0	0	3
[26] † Araiochelys Last Modified in 10/13/14	41	134	134	0	0	0	0	3
[27] † Zolhafah Last Modified in 10/13/14	92	83	83	0	0	0	0	3
[28] † Rosasia Last Modified in 10/13/14	55	120	120	0	0	0	0	3
[29] † Bothremys cooki Last Modified in 10/13/14	114	61	61	0	0	0	0	3
[30] † Bothremys maghrebiana Last Modified in 10/13/14	53	128	122	0	0	0	0	3
[31] † Bothremys kellyi Last Modified in 10/13/14	85	90	90	0	0	0	0	3
[32] † Bothremys arabicus Last Modified in 10/13/14	112	63	63	0	0	0	0	3
[33] † Chedighaii hutchisoni Last Modified in 10/13/14	72	103	103	0	0	0	0	3
[34] † Chedighaii barberi Last Modified in 10/13/14	44	131	131	0	0	0	0	3
[35] † Taphrosphys sulcatus Last Modified in 10/13/14	51	125	124	0	0	0	0	3
[36] † Taphrosphys congolensis Last Modified in 10/13/14	61	114	114	0	0	0	0	3
[37] † Taphrosphys ippolitoi Last Modified in 10/13/14	80	95	95	0	0	0	0	3
[38] † Azabbaremys Last Modified in 10/13/14	68	107	107	0	0	0	0	3
[39] † Acleistochelys Last Modified in 10/13/14	76	99	99	0	0	0	0	3
[40] † Labrostochelys Last Modified in 10/13/14	74	102	101	0	0	0	0	3
[41] † Phosphatochelys Last Modified in 10/13/14	71	105	104	0	0	0	0	3
[42] † Ummulisani Last Modified in 10/13/14	64	114	111	0	0	0	0	3
[43] † Rhothonemys Last Modified in 10/13/14	111	64	64	0	0	0	0	3
[44] † Nigeremys Last Modified in 10/13/14	99	76	76	0	0	0	0	3
[45] † Arenila Last Modified in 10/13/14	103	72	72	0	0	0	0	3
[46] † Proterochersis Last Modified in 10/13/14	141	34	34	0	0	0	0	3
[47] † Platychelys Last Modified in 10/13/14	124	53	51	0	0	0	0	3
[48] † Notoemys Last Modified in 10/13/14	120	55	55	0	0	0	0	3
[49] † Dortoka Last Modified in 10/13/14	131	47	44	0	0	0	0	3

Project views

type	number of views	Individual items viewed (where applicable)
Total project views	38827
Project overview	4752
Matrix views	3356	Matrix landing page (2924 views); (36 views); Atolchelys lepida, a new side-necked turtle from the Early Cretaceous of Brazil and the age of crown Pleurodira (396 views);
Taxon list	20671
Media views	6820	Media search (5867 views); M336486 (953 views);
Specimen list	3107
Documents list	8
Bibliography	113

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	422
Matrix downloads	95	(1 download); Atolchelys lepida, a new side-necked turtle from the Early Cretaceous of Brazil and the age of crown Pleurodira (94 downloads);
Project downloads	327