Morphobank

Project 5140: R. J. O’Flynn, M. Williams, M.-X. Yu, J. Guo, D. Audo, M. Schmidt, H.-J. Mai, Y. Liu, G. D. Edgecombe. 2024. The early Cambrian Bushizheia yangi and head segmentation in upper stem-group euarthropods. Papers in Palaeontology. (In Press)

Specimen: † Bushizheia yangi (YKLP/17224)
View: Dorsal general habitus

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Abstract

Bushizheia yangi O’Flynn & Liu, a euarthropod from the lower Cambrian (Series 2, Stage 3) Chengjiang Konservat-Lagerstätte, possesses both raptorial frontal appendages sharing traits with stem-group euarthropods and deuteropodan characters shared by all extant euarthropods (e.g. dorsal arthrodisation and arthropodisation of all limbs). Microtomography of new specimens of B. yangi reveals previously unknown details of head morphology — a six-segmented head composed of an ocular segment that carries diminutive paired stalked eyes, a post-ocular segment with deutocerebral frontal appendages, and four subsequent cephalic segments each bearing a pair of appendages. The phylogenetic position of B. yangi in the euarthropod stem-group adds support to a six-segmented head being an ancestral state for Deuteropoda. This study also reports the first occurrence of possible eggs closely associated with B. yangi. The homology of raptorial frontal appendages between lower stem-group euarthropod radiodonts and deuteropods (i.e., upper stem- and crown-group euarthropods) is strengthened by similarity and phylogenetic continuity between B. yangi, its likely sister taxon Kiisortoqia soperi Stein, from the Sirius Passet Konservat-Lagerstätte, and other euarthropod taxa.

Project DOI: 10.7934/P5140, http://dx.doi.org/10.7934/P5140

This project contains	Matrices
1 Media 1 Matrix 85 Taxa 1 Specimen 283 Characters Total size of project's media files: 3.5M Download Project SDD File	Total scored cells: 22387 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 283 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 643 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:283/0

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MorphoBank Project 5140

Creation Date:
21 March 2024
Publication Date:
29 March 2024
Project views: 828

Members

Robert O'Flynn
Project Administrator

283

22387
(14403, 0, 7984)

Taxonomic Overview for Matrix 'M29729' (85 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] Priapulus caudatus Last Modified in 03/29/24	2	53	53	0	228	0	0	1
[2] † Cricocosmia jinningensis Last Modified in 03/29/24	7	54	54	0	222	0	0	1
[3] Tardigrada Last Modified in 03/22/24	6	107	107	0	170	0	0	1
[4] † Microdictyon sinicum Last Modified in 03/29/24	14	116	116	0	153	0	0	1
[5] † Paucipodia inermis Last Modified in 03/29/24	16	109	109	0	158	0	0	1
[6] † Cardiodictyon catenulum Last Modified in 03/29/24	17	114	114	0	152	0	0	1
[7] † Hallucigenia sparsa Last Modified in 03/29/24	11	120	120	0	152	0	0	1
[8] † Hallucigenia fortis Last Modified in 03/29/24	14	117	117	0	152	0	0	1
[9] † Collinsium ciliosum Last Modified in 03/29/24	18	114	114	0	151	0	0	1
[10] † Luolishania longicruris Last Modified in 03/29/24	14	118	118	0	151	0	0	1
[11] † Onychodictyon ferox Last Modified in 03/29/24	14	117	117	0	152	0	0	1
[12] † Aysheaia pedunculata Last Modified in 03/29/24	12	114	114	0	157	0	0	1
[13] † Antennacanthopodia gracilis Last Modified in 03/29/24	13	112	112	0	158	0	0	1
[14] Onychophora Last Modified in 03/29/24	5	117	117	0	161	0	0	1
[15] † Megadictyon haikouensis Last Modified in 03/29/24	17	108	108	0	158	0	0	1
[16] † Pambdelurion whittingtoni Last Modified in 03/29/24	40	109	109	0	134	0	0	1
[17] † Kerygmachela kierkegaardi Last Modified in 03/29/24	43	110	110	0	130	0	0	1
[18] † Opabinia regalis Last Modified in 03/29/24	43	107	107	0	133	0	0	1
[19] † Anomalocaris canadensis Last Modified in 03/29/24	23	142	142	0	118	0	0	1
[20] † Lyrarapax unguispinus Last Modified in 03/29/24	26	139	139	0	118	0	0	1
[21] † Amplectobelua symbrachiata Last Modified in 03/29/24	18	147	147	0	118	0	0	1
[22] † Peytoia nathorsti Last Modified in 03/29/24	25	140	140	0	118	0	0	1
[23] † Stanleycaris hirpex Last Modified in 03/29/24	29	137	137	0	117	0	0	1
[24] † Aegirocassis benmoulai Last Modified in 03/29/24	67	102	102	0	114	0	0	1
[25] † Hurdia victoria Last Modified in 03/29/24	31	134	134	0	118	0	0	1
[26] † Schinderhannes bartelsi Last Modified in 03/29/24	46	121	121	0	116	0	0	1
[27] † Fengzhengia mamingae Last Modified in 03/29/24	45	168	168	0	70	0	0	1
[28] † Kylinxia zhangi Last Modified in 03/29/24	12	203	203	0	68	0	0	1
[29] † Kiisortoqia soperi Last Modified in 03/29/24	32	172	172	0	79	0	0	1
[30] † Bushizheia yangi Last Modified in 03/29/24	32	175	175	0	76	0	0	1
[31] † Habelia optata Last Modified in 03/29/24	14	198	198	0	71	0	0	1
[32] † Mollisonia plenovenatrix Last Modified in 03/29/24	14	200	200	0	69	0	0	1
[33] Limulus polyphemus Last Modified in 03/29/24	1	210	210	0	72	0	0	1
[34] † Dibasterium durgae Last Modified in 03/29/24	24	187	187	0	72	0	0	1
[35] † Offacolus kingi Last Modified in 03/29/24	24	187	187	0	72	0	0	1
[36] † Haikoucaris ercaiensis Last Modified in 03/29/24	17	197	197	0	69	0	0	1
[37] † Yawunik kootenayi Last Modified in 03/29/24	7	208	208	0	68	0	0	1
[38] † Alalcomenaeus cambricus Last Modified in 03/29/24	6	209	209	0	68	0	0	1
[39] † Leanchoilia illecebrosa Last Modified in 03/29/24	6	209	209	0	68	0	0	1
[40] † Leanchoilia superlata Last Modified in 03/29/24	7	208	208	0	68	0	0	1
[41] † Fortiforceps foliosa Last Modified in 03/29/24	7	206	206	0	70	0	0	1
[42] † Tanglangia caudata Last Modified in 03/29/24	40	175	175	0	68	0	0	1
[43] † Yohoia tenuis Last Modified in 03/29/24	8	205	205	0	70	0	0	1
[44] † Sklerolibyon maomima Last Modified in 03/29/24	11	202	202	0	70	0	0	1
[45] † Jianfengia multisegmentalis Last Modified in 03/29/24	8	205	205	0	70	0	0	1
[46] † Forfexicaris valida Last Modified in 03/29/24	89	135	135	0	59	0	0	1
[47] † Occacaris oviformis Last Modified in 03/29/24	63	161	161	0	59	0	0	1
[48] † Surusicaris elegans Last Modified in 03/29/24	27	191	191	0	65	0	0	1
[49] † Isoxys auritus Last Modified in 03/29/24	20	198	198	0	65	0	0	1
[50] † Isoxys volucris Last Modified in 03/29/24	67	154	154	0	62	0	0	1
[51] † Isoxys curvirostratus Last Modified in 03/29/24	19	199	199	0	65	0	0	1
[52] † Isoxys acutangulus Last Modified in 03/29/24	23	195	195	0	65	0	0	1
[53] † Retifacies abnormalis Last Modified in 03/29/24	7	199	199	0	77	0	0	1
[54] † Sinoburius lunaris Last Modified in 03/29/24	15	192	192	0	76	0	0	1
[55] † Cindarella eucalla Last Modified in 03/29/24	5	202	202	0	76	0	0	1
[56] † Xandarella spectaculum Last Modified in 03/29/24	5	202	202	0	76	0	0	1
[57] † Olenoides serratus Last Modified in 03/29/24	4	203	203	0	76	0	0	1
[58] † Hongshiyanaspis yiliangensis Last Modified in 03/29/24	3	204	204	0	76	0	0	1
[59] † Eoredlichia intermedia Last Modified in 03/29/24	4	203	203	0	76	0	0	1
[60] † Misszhouia longicaudata Last Modified in 03/29/24	15	192	192	0	76	0	0	1
[61] † Naraoia compacta Last Modified in 03/29/24	15	192	192	0	76	0	0	1
[62] † Naraoia spinosa Last Modified in 03/29/24	15	192	192	0	76	0	0	1
[63] † Arthroaspis bergstroemi Last Modified in 03/29/24	13	195	195	0	75	0	0	1
[64] † Tegopelte gigas Last Modified in 03/29/24	10	197	197	0	76	0	0	1
[65] † Saperion glumaceum Last Modified in 03/29/24	6	201	201	0	76	0	0	1
[66] † Helmetia expansa Last Modified in 03/29/24	73	139	139	0	71	0	0	1
[67] † Kuamaia lata Last Modified in 03/29/24	6	203	203	0	74	0	0	1
[68] † Chengjiangocaris kunmingensis Last Modified in 03/29/24	6	204	204	0	73	0	0	1
[69] † Alacaris mirabilis Last Modified in 03/29/24	7	203	203	0	73	0	0	1
[70] † Liangwangshania biloba Last Modified in 03/29/24	10	199	199	0	74	0	0	1
[71] † Guangweicaris spinatus Last Modified in 03/29/24	12	198	198	0	73	0	0	1
[72] † Fuxianhuia protensa Last Modified in 03/29/24	3	207	207	0	73	0	0	1
[73] Narceus americanus Last Modified in 03/22/24	1	192	192	0	90	0	0	1
[74] Scutigera coleoptrata Last Modified in 03/22/24	3	190	190	0	90	0	0	1
[75] Artemia salina Last Modified in 03/22/24	2	212	212	0	69	0	0	1
[76] † Yicaris dianensis Last Modified in 03/29/24	7	207	207	0	69	0	0	1
[77] † Hesslandona unisulcata Last Modified in 03/29/24	17	197	197	0	69	0	0	1
[78] † Martinssonia elongata Last Modified in 03/29/24	10	204	204	0	69	0	0	1
[79] † Waptia fieldensis Last Modified in 03/29/24	7	211	211	0	65	0	0	1
[80] † Clypecaris serrata Last Modified in 03/29/24	48	173	173	0	62	0	0	1
[81] † Canadaspis perfecta Last Modified in 03/29/24	12	206	206	0	65	0	0	1
[82] † Tokummia katalepsis Last Modified in 03/29/24	16	203	203	0	64	0	0	1
[83] † Branchiocaris pretiosa Last Modified in 03/29/24	23	196	196	0	64	0	0	1
[84] † Odaraia alata Last Modified in 03/29/24	64	159	159	0	60	0	0	1
[85] † Jugatacaris agilis Last Modified in 03/29/24	30	191	191	0	62	0	0	1

Project views

type	number of views	Individual items viewed (where applicable)
Total project views	828
Project overview	70
Specimen list	59
Bibliography	32
Views for media list	43
Matrix views	45	Matrix landing page (40 views); Appendix_P5140 (5 views);
Media views	135	Media search (118 views); M902797 (17 views);
Taxon list	444