Morphobank

Project 5265: Calvin So, Arjan Mann. 2024. A large brachyopoid from the Middle Triassic of northern Arizona and the diversity of brachyopoid temnospondyls from the Moenkopi Formation. Fossil Record. 27 (1):233-245.

Specimen: UCMP 36833 (UCMP:36833)
View: Lateral, medial, dorsal, ventral

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Abstract

Brachyopoids represent a diverse and late surviving temnospondyl group, lasting until the Early Cretaceous. Here, we report on brachyopoid material previously assigned to Hadrokkosaurus bradyi that represents a distinct brachyopoid taxon, characterised by a smaller number of large, robust mandibular teeth, a feature rarely observed in other temnospondyls. We also revisit an angular previously referred to Hadrokkosaurus potentially belonging to other temnospondyl taxa present in the Middle Triassic of North America. In light of the abundance of material of possible taxa distinct from Hadrokkosaurus, we express the need to re-examine previously collected specimens as new information changes the landscape of palaeontology. Parsimony analyses using exclusively mandibular characters recover the new brachyopoid taxon from the locality in a polytomy with Hadrokkosaurus and Vanastega at the base of Brachyopoidea, adding to a diversity of mandibular morphology of temnospondyls in the Middle Triassic of North America.

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Article DOI: 10.3897/fr.27.117611

Project DOI: 10.7934/P5265, http://dx.doi.org/10.7934/P5265

This project contains	Matrices
1 Media 1 Matrix 59 Taxa 1 Specimen 128 Characters Total size of project's media files: 22.85M Download Project SDD File	Total scored cells: 6234 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 128 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 290 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:128/0

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MorphoBank Project 5265

Creation Date:
28 May 2024
Publication Date:
25 June 2024
Project views: 1340

Authors' Institutions

The George Washington University

Members

Calvin So
Project Administrator

128

6234
(5949, 0, 285)

Taxonomic Overview for Matrix 'M29842' (59 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] Acanthostega gunnari Taxon name last Modified on 05/28/24	17	108	108	0	3	0	0	1
[2] Archeria crassidisca Taxon name last Modified on 05/28/24	10	118	115	0	2	0	0	1
[3] Caerorhachis bairdi Taxon name last Modified on 05/28/24	37	85	84	0	6	0	0	1
[4] Crassigyrinuss coticus Taxon name last Modified on 05/28/24	28	100	98	0	2	0	0	1
[5] Diploceraspis burkei Taxon name last Modified on 05/28/24	37	85	85	0	6	0	0	1
[6] Discosauriscus austriacus Taxon name last Modified on 05/28/24	18	106	105	0	4	0	0	1
[7] Doragnathus woodi Taxon name last Modified on 05/28/24	32	97	95	0	0	0	0	1
[8] Gephyrostegus bohemicus Taxon name last Modified on 05/28/24	22	101	100	0	6	0	0	1
[9] Greererpeton burkemorani Taxon name last Modified on 05/28/24	16	111	109	0	3	0	0	1
[10] Ichthyostega stensioei Taxon name last Modified on 05/28/24	16	113	111	0	1	0	0	1
[11] Megalocephalus pachycephalus Taxon name last Modified on 05/28/24	12	115	115	0	1	0	0	1
[12] Microbrachis pelikani Taxon name last Modified on 05/28/24	19	104	104	0	5	0	0	1
[13] NMS987GF65.1 Taxon name last Modified on 05/28/24	63	63	63	0	2	0	0	1
[14] Occidens portlocki Taxon name last Modified on 05/28/24	91	38	37	0	0	0	0	1
[15] Panderichthys rhombolepis Taxon name last Modified on 05/28/24	21	106	106	0	1	0	0	1
[16] Pantylus cordatus Taxon name last Modified on 05/28/24	29	92	91	0	7	0	0	1
[17] Pholiderpeton scutigerum Taxon name last Modified on 05/28/24	13	113	112	0	2	0	0	1
[18] Sigournea multidentata Taxon name last Modified on 05/28/24	24	101	101	0	3	0	0	1
[19] Spathicephalus mirus Taxon name last Modified on 05/28/24	85	41	41	0	2	0	0	1
[20] Ventastega curonica Taxon name last Modified on 05/28/24	19	108	108	0	1	0	0	1
[21] Whatcheeria deltae Taxon name last Modified on 05/28/24	14	115	111	0	3	0	0	1
[22] Acanthostomatops vorax Taxon name last Modified on 05/28/24	47	79	79	0	2	0	0	1
[23] Archegosaurus decheni Taxon name last Modified on 05/28/24	17	108	105	0	6	0	0	1
[24] Balanerpeton woodi Taxon name last Modified on 05/28/24	18	105	103	0	7	0	0	1
[25] Bathignathus poikilops Taxon name last Modified on 05/28/24	9	115	114	0	5	0	0	1
[26] Benthosuchus sushkini Taxon name last Modified on 05/28/24	6	115	114	0	8	0	0	1
[27] Glanochthon latirostre Taxon name last Modified on 05/28/24	19	105	105	0	4	0	0	1
[28] Chomatobatrachus halei Taxon name last Modified on 05/28/24	10	112	112	0	6	0	0	1
[29] Cochleosaurus bohemicus Taxon name last Modified on 05/28/24	26	101	96	0	6	0	0	1
[30] Cochleosaurus florensis Taxon name last Modified on 05/28/24	30	91	89	0	7	0	0	1
[31] Compsocerops cosgriffi Taxon name last Modified on 05/28/24	20	103	100	0	7	0	0	1
[32] Dutuitosaurus ouazzoui Taxon name last Modified on 05/28/24	5	116	116	0	7	0	0	1
[33] Dvinosaurus primus Taxon name last Modified on 05/28/24	4	119	116	0	6	0	0	1
[34] Ecolsonia cutlerensis Taxon name last Modified on 05/28/24	46	76	75	0	6	0	0	1
[35] Edops craigi Taxon name last Modified on 05/28/24	48	74	74	0	6	0	0	1
[36] Eryops megacephalus Taxon name last Modified on 05/28/24	13	115	110	0	4	0	0	1
[37] Hadrokkosaurus bradyi Taxon name last Modified on 05/28/24	15	109	108	0	4	0	0	1
[38] Inflectosaurus amplus Taxon name last Modified on 05/28/24	9	112	112	0	7	0	0	1
[39] Parotosuchus haughtoni Taxon name last Modified on 05/28/24	15	109	108	0	4	0	0	1
[40] Keratobrachyops australis Taxon name last Modified on 05/28/24	9	111	110	0	9	0	0	1
[41] Koolasuchus cleelandi Taxon name last Modified on 05/28/24	12	112	111	0	4	0	0	1
[42] Kupferzellia wildi Taxon name last Modified on 05/28/24	15	108	108	0	5	0	0	1
[43] Lydekkerina huxleyi Taxon name last Modified on 05/28/24	12	111	111	0	5	0	0	1
[44] Mastodonsaurus giganteus Taxon name last Modified on 05/28/24	9	116	115	0	4	0	0	1
[45] Micromelerpeton credneri Taxon name last Modified on 05/28/24	27	96	94	0	6	0	0	1
[46] Onchiodon labyrinthicus Taxon name last Modified on 05/28/24	34	92	89	0	4	0	0	1
[47] Phonerpeton pricei Taxon name last Modified on 05/28/24	19	105	102	0	6	0	0	1
[48] QM f 14493 Taxon name last Modified on 05/28/24	20	103	102	0	5	0	0	1
[49] Rhineceps nyasaensis Taxon name last Modified on 05/28/24	17	107	104	0	6	0	0	1
[50] Sclerocephalus haeuseri Taxon name last Modified on 05/28/24	9	116	112	0	6	0	0	1
[51] Siderops kehli Taxon name last Modified on 05/28/24	37	87	86	0	4	0	0	1
[52] Thoosuchus yakovlevi Taxon name last Modified on 05/28/24	5	119	118	0	5	0	0	1
[53] Trimerorhachis insignis Taxon name last Modified on 05/28/24	2	127	119	0	6	0	0	1
[54] Tryphosuchus paucidens Taxon name last Modified on 05/28/24	15	109	109	0	4	0	0	1
[55] Vanastega plurimidens Taxon name last Modified on 05/28/24	18	105	104	0	5	0	0	1
[56] Xenotosuchus africanus Taxon name last Modified on 05/28/24	11	113	111	0	4	0	0	1
[57] Zatrachys serratus Taxon name last Modified on 05/28/24	32	92	91	0	4	0	0	1
[58] UCMP 36833 Taxon name last Modified on 05/28/24	81	40	40	0	7	0	0	1
[59] Plagiosuchus pustuliferus Taxon name last Modified on 05/28/24	8	96	96	0	24	0	0	1

Project views

type	number of views	Individual items viewed (where applicable)
Total project views	1340
Project overview	80
Bibliography	44
Matrix views	57	Matrix landing page (53 views); A large brachyopoid from the Middle Triassic of Northern Arizona, and the diversity of brachyopoid temnospondyls from the Moenkopi Formation. (4 views);
Views for media list	67
Specimen list	115
Taxon list	786
Media views	190	Media search (158 views); M908190 (32 views);
Documents list	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	2
Project downloads	2