Morphobank

Project 3436: J. Sterli, M. S. de la Fuente, G. W. Rougier. 2018. New remains of Condorchelys antiqua (Testudinata) from the Early-Middle Jurassic of Patagonia: anatomy, phylogeny, and paedomorphosis in the early evolution of turtles. Journal of Vertebrate Paleontology. 38 (4):1-17.

Specimen: † Condorchelys antiqua (unvouchered)
View: Reconstruction right side

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Abstract

New cranial and postcranial remains of the Early–Middle Jurassic turtle, Condorchelys antiqua, are described here in detail, providing new insights into the early evolution of turtles. Unconstrained and constrained cladistic analyses in addition to newly developed total-evidence Bayesian analysis were performed to explore large-scale turtle relationships and evolutionary trends. All the analyses show a similar resolution at the base of the tree, recovering several species of small-sized, fresh water turtles of the Early–Middle Jurassic at the base of the tree following the most basal, large-sized, terrestrial turtles from the Late Triassic. The calibration of the cladistic analyses and the tip-dating analysis provided similar results in the main nodes Testudines, Pan-Cryptodira, Cryptodira, Pan-Pleurodira, and Pleurodira, corroborating that the Jurassic is a key period for turtle evolution. The significant reduction in size in Early–Middle Jurassic stem turtles and the combination of certain characters (e.g., presence of fontanelles, loss of bones, loss of scutes) shown by those taxa suggests heterochronic changes, paedomorphosis in particular, at the base of the turtle tree. These morphological novelties could have trigged, or facilitated, the occupation of the aquatic niche as seen in Jurassic stem turtles.

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Article DOI: 10.1080/02724634.2018.1480112

Project DOI: 10.7934/P3436, http://dx.doi.org/10.7934/P3436

This project contains	Matrices
1 Media 1 Matrix 9 Documents 99 Taxa 1 Specimen 245 Characters Total size of project's media files: 839.36k Download Project SDD File	Total scored cells: 16712 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 245 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 679 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:217/28

Currently Viewing:
MorphoBank Project 3436

Creation Date:
28 March 2019
Publication Date:
28 March 2019
Matrix downloads: 11

Authors' Institutions

Museo Paleontológico Egidio Feruglio

University of Louisville

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

Museo de Historia Natural de San Rafael

Members

Juliana Sterli
Project Administrator

245

16712
(14291, 0, 2421)

Taxonomic Overview for Matrix 'M25964' (99 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] Sphenodon punctatus Taxon name last Modified on 03/28/19	9	106	105	0	131	0	0	1
[2] † Owenetta kitchingorum Taxon name last Modified on 03/29/19	39	88	88	0	118	0	0	1
[3] † Anthodon serrarius Taxon name last Modified on 03/29/19	25	101	101	0	119	0	0	1
[4] † Odontochelys semitestacea Taxon name last Modified on 03/29/19	96	93	93	0	56	0	0	1
[5] † Proganochelys quenstedti Taxon name last Modified on 03/29/19	18	199	199	0	28	0	0	1
[6] † Proterochersis robusta Taxon name last Modified on 03/29/19	165	68	67	0	13	0	0	1
[7] † Palaeochersis talampayensis Taxon name last Modified on 03/29/19	79	143	142	0	24	0	0	1
[8] † Australochelys africanus Taxon name last Modified on 03/29/19	187	49	49	0	9	0	0	1
[9] † Kayentachelys aprix Taxon name last Modified on 03/29/19	40	180	179	0	26	0	0	1
[10] † Condorchelys antiqua Taxon name last Modified on 03/29/19	113	114	113	0	19	0	0	1
[11] † Heckerochelys romani Taxon name last Modified on 03/29/19	118	107	107	0	20	0	0	1
[12] † Eileanchelys waldmani Taxon name last Modified on 03/29/19	133	103	103	0	9	0	0	1
[13] † Indochelys spatulata Taxon name last Modified on 03/29/19	211	31	31	0	3	0	0	1
[14] † Siamochelys peninsularis Taxon name last Modified on 03/29/19	187	56	55	0	3	0	0	1
[15] † Niolamia argentina Taxon name last Modified on 03/29/19	133	114	109	0	3	0	0	1
[16] † Gaffneylania auricularis Taxon name last Modified on 03/29/19	166	78	76	0	3	0	0	1
[17] † Warkalania carinaminor Taxon name last Modified on 03/29/19	228	15	15	0	2	0	0	1
[18] † Meiolania platyceps Taxon name last Modified on 03/29/19	25	217	213	0	7	0	0	1
[19] † Ninjemys oweni Taxon name last Modified on 03/29/19	200	45	45	0	0	0	0	1
[20] † Chubutemys copelloi Taxon name last Modified on 03/29/19	137	104	102	0	6	0	0	1
[21] † Mongolochelys efremovi Taxon name last Modified on 03/29/19	12	219	219	0	14	0	0	1
[22] † Peligrochelys walshae Taxon name last Modified on 03/29/19	194	48	47	0	4	0	0	1
[23] † Otwayemys cunicularius Taxon name last Modified on 03/29/19	177	64	63	0	5	0	0	1
[24] † Kallokibotion bajazidi Taxon name last Modified on 03/29/19	71	155	154	0	20	0	0	1
[25] † Platychelys oberndorferi Taxon name last Modified on 03/29/19	152	82	82	0	11	0	0	1
[26] † Notoemys laticentralis Taxon name last Modified on 03/29/19	114	121	121	0	10	0	0	1
[27] † Notoemys oxfordiensis Taxon name last Modified on 03/29/19	182	57	57	0	6	0	0	1
[28] † Notoemys zapatocaensis Taxon name last Modified on 03/29/19	170	72	70	0	5	0	0	1
[29] † Prochelidella cerrobarcinae Taxon name last Modified on 03/29/19	187	53	53	0	5	0	0	1
[30] Elseya dentata Taxon name last Modified on 03/28/19	26	188	188	0	31	0	0	1
[31] Myuchelys latisternum Taxon name last Modified on 03/28/19	9	204	204	0	32	0	0	1
[32] Chelodina colliei Taxon name last Modified on 03/28/19	5	210	210	0	30	0	0	1
[33] Chelodina longicollis Taxon name last Modified on 03/28/19	1	213	213	0	31	0	0	1
[34] † Yaminuechelys maior Taxon name last Modified on 03/29/19	85	134	134	0	26	0	0	1
[35] Phrynops geoffroanus Taxon name last Modified on 03/28/19	1	214	214	0	30	0	0	1
[36] Chelus fimbriatus Taxon name last Modified on 03/28/19	0	212	212	0	33	0	0	1
[37] † Araripemys barretoi Taxon name last Modified on 03/29/19	48	179	179	0	18	0	0	1
[38] Erymnochelys madagascariensis Taxon name last Modified on 03/28/19	16	197	197	0	32	0	0	1
[39] Pelomedusa subrufa Taxon name last Modified on 03/28/19	0	215	214	0	31	0	0	1
[40] Podocnemis expansa Taxon name last Modified on 03/28/19	1	214	214	0	30	0	0	1
[41] † Dorsetochelys delairi Taxon name last Modified on 03/29/19	141	85	85	0	19	0	0	1
[42] † Pleurosternon bullockii Taxon name last Modified on 03/29/19	71	144	144	0	30	0	0	1
[43] † Glyptops plicatulus Taxon name last Modified on 03/29/19	42	169	169	0	34	0	0	1
[44] † Dinochelys whitei Taxon name last Modified on 03/29/19	128	105	104	0	13	0	0	1
[45] † Neurankylus eximius Taxon name last Modified on 03/29/19	118	120	120	0	7	0	0	1
[46] † Trinitichelys hiatti Taxon name last Modified on 03/29/19	69	147	147	0	29	0	0	1
[47] † Plesiobaena antiqua Taxon name last Modified on 03/29/19	44	176	176	0	25	0	0	1
[48] † Boremys pulchra Taxon name last Modified on 03/29/19	52	162	162	0	31	0	0	1
[49] † Baena arenosa Taxon name last Modified on 03/29/19	41	185	185	0	19	0	0	1
[50] † Chisternon undatum Taxon name last Modified on 03/29/19	39	182	182	0	24	0	0	1
[51] † Portlandemys macdowelli Taxon name last Modified on 03/29/19	152	90	90	0	3	0	0	1
[52] † Plesiochelys etalloni Taxon name last Modified on 03/29/19	69	173	169	0	7	0	0	1
[53] † Solnhofia parsonsi Taxon name last Modified on 03/29/19	64	163	162	0	19	0	0	1
[54] † Thalassemys moseri Taxon name last Modified on 03/29/19	105	126	126	0	14	0	0	1
[55] † Santanachelys gaffneyi Taxon name last Modified on 03/29/19	104	134	134	0	7	0	0	1
[56] † Xinjiangchelys junggarensis Taxon name last Modified on 03/29/19	149	83	83	0	13	0	0	1
[57] † Hangaiemys hoburensis Taxon name last Modified on 03/29/19	81	159	158	0	6	0	0	1
[58] † Judithemys sukhanovi Taxon name last Modified on 03/29/19	37	186	184	0	24	0	0	1
[59] † Dracochelys bicuspis Taxon name last Modified on 03/29/19	75	148	148	0	22	0	0	1
[60] † Sinemys lens Taxon name last Modified on 03/29/19	91	136	135	0	19	0	0	1
[61] † Ordosemys leios Taxon name last Modified on 03/29/19	81	156	156	0	8	0	0	1
[62] † Toxochelys latiremys Taxon name last Modified on 03/29/19	46	174	174	0	25	0	0	1
[63] Caretta caretta Taxon name last Modified on 03/28/19	7	206	205	0	33	0	0	1
[64] Chelonia mydas Taxon name last Modified on 03/28/19	8	205	205	0	32	0	0	1
[65] † Mesodermochelys undulatus Taxon name last Modified on 03/29/19	133	86	86	0	26	0	0	1
[66] Dermochelys coriacea Taxon name last Modified on 03/28/19	11	171	171	0	63	0	0	1
[67] † Macroclemys schmidti Taxon name last Modified on 03/29/19	156	87	87	0	2	0	0	1
[68] Macroclemys temminckii Taxon name last Modified on 03/28/19	18	214	213	0	14	0	0	1
[69] † Protochelydra zangerli Taxon name last Modified on 03/29/19	147	89	89	0	9	0	0	1
[70] Chelydra serpentina Taxon name last Modified on 03/28/19	24	207	207	0	14	0	0	1
[71] Platysternon megacephalum Taxon name last Modified on 03/28/19	2	214	214	0	29	0	0	1
[72] † Mongolemys elegans Taxon name last Modified on 03/29/19	39	180	178	0	28	0	0	1
[73] Gopherus polyphemus Taxon name last Modified on 03/28/19	0	219	218	0	27	0	0	1
[74] Eurotestudo hermanni Taxon name last Modified on 03/28/19	2	216	216	0	27	0	0	1
[75] † Chelonoidis gringorum Taxon name last Modified on 03/29/19	183	57	57	0	5	0	0	1
[76] Chelonoidis chilensis Taxon name last Modified on 03/28/19	1	218	217	0	27	0	0	1
[77] † Stylemys nebraskensis Taxon name last Modified on 03/29/19	113	122	122	0	10	0	0	1
[78] Chrysemys picta Taxon name last Modified on 03/28/19	0	218	218	0	27	0	0	1
[79] Trachemys scripta Taxon name last Modified on 03/28/19	4	200	200	0	41	0	0	1
[80] Emys orbicularis Taxon name last Modified on 03/28/19	10	211	211	0	24	0	0	1
[81] Geoclemys hamiltonii Taxon name last Modified on 03/28/19	1	216	216	0	28	0	0	1
[82] † Echmatemys wyomingensis Taxon name last Modified on 03/29/19	171	68	67	0	7	0	0	1
[83] † Emarginachelys cretacea Taxon name last Modified on 03/29/19	94	127	127	0	24	0	0	1
[84] † Baptemys wyomingensis Taxon name last Modified on 03/29/19	47	171	170	0	28	0	0	1
[85] Dermatemys mawii Taxon name last Modified on 03/28/19	6	211	209	0	30	0	0	1
[86] † Xenochelys formosa Taxon name last Modified on 03/29/19	107	111	111	0	27	0	0	1
[87] Staurotypus triporcatus Taxon name last Modified on 03/28/19	5	212	211	0	29	0	0	1
[88] Sternotherus odoratus Taxon name last Modified on 03/28/19	1	210	210	0	34	0	0	1
[89] Kinosternon flavescens Taxon name last Modified on 03/28/19	7	204	204	0	34	0	0	1
[90] † Basilemys variolosa Taxon name last Modified on 03/29/19	119	120	118	0	8	0	0	1
[91] † Yehguia tatsuensis Taxon name last Modified on 03/29/19	194	48	48	0	3	0	0	1
[92] † Adocus beatus Taxon name last Modified on 03/29/19	38	198	197	0	10	0	0	1
[93] † Hoplochelys crassa Taxon name last Modified on 03/29/19	181	54	54	0	10	0	0	1
[94] Apalone spinifera Taxon name last Modified on 03/28/19	0	189	189	0	56	0	0	1
[95] † Plastomenus aff. thomassii Taxon name last Modified on 03/29/19	75	116	116	0	54	0	0	1
[96] Pelodiscus sinensis Taxon name last Modified on 03/28/19	33	156	156	0	56	0	0	1
[97] Lissemys punctata Taxon name last Modified on 03/28/19	0	188	188	0	57	0	0	1
[98] † Anosteira ornata Taxon name last Modified on 03/29/19	96	112	111	0	38	0	0	1
[99] Carettochelys insculpta Taxon name last Modified on 03/28/19	1	195	195	0	49	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	167
Document downloads	4	SM 10 (2 downloads); SM1 (1 download); SM3 (1 download);
Project downloads	152
Matrix downloads	11	SM2 (11 downloads);