Morphobank

Project 4328: S. Zamora, D. F. Wright, M. Nohejlová. 2023. Phylogenetic position of Bohemiacinctus gen. nov. (Echinodermata, Cincta) from the Cambrian of Bohemia: implications for macroevolution and the role of taxon sampling in palaeobiological systematics. Papers in Palaeontology. 9 (1):e1482.

Specimen: † Asturicystis havliceki (unvouchered)
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Abstract

“Asturicystis” havliceki Fatka and Kordule 2001 from the middle Cambrian of Bohemia is re-described based on its type material. Several features, including the extension of the food grooves and presence of ventral swellings suggest “Asturicystis” havliceki does not belong to Asturicystis, and is placed in the new genus Bohemiacinctus nov. To ascertain the phylogenetic position of Bohemiacinctus havliceki, we conducted Bayesian fossil tip-dating and parsimony-based phylogenetic analyses of 23 species spanning all major groups of cinctan higher taxa. Results indicate a high degree of congruence between tree topologies recovered by both tip-dated and parsimony-based analyses. Both methods indicate B. havliceki is phylogenetically distant from Asturicystis and is most likely an early representative of the family Sucocystidae. Overall, our phylogeny is broadly similar to previous estimates of cinctan relationships, including a more conventional phylogenetic position of controversial taxa like Protocinctus. These results point to the sensitivity of small clades like cinctans to taxon sampling effects, and highlight the importance of taxonomy and accurate morphological character descriptions in phylogenetic analyses of fossil taxa.

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Article DOI: 10.1002/spp2.1482

Project DOI: 10.7934/P4328, http://dx.doi.org/10.7934/P4328

This project contains	Matrices
1 Media 1 Matrix 27 Taxa 1 Specimen 60 Characters Total size of project's media files: 410.79k Download Project SDD File	Total scored cells: 1262 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 60 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 151 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:60/0

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MorphoBank Project 4328

Creation Date:
19 July 2022
Publication Date:
04 February 2023
Matrix downloads: 2

Authors' Institutions

National Museum of Natural History, Smithsonian Institution

University of Oklahoma

Universidad de Zaragoza

Instituto Geológico y Minero de España (IGME-CSIC)

Czech Geological Survey

Sam Noble Museum

Members

David Wright
Project Administrator

1262
(1262, 0, 0)

Taxonomic Overview for Matrix 'M28862' (27 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Ctenocystis utahensis Taxon name last Modified on 02/21/23	31	29	29	0	0	0	0	1
[2] † Gyrocystis platessa Taxon name last Modified on 02/21/23	2	59	58	0	0	0	0	1
[3] † Gyrocystis testudiformis Taxon name last Modified on 02/21/23	2	58	58	0	0	0	0	1
[4] † Gyrocystis cruzae Taxon name last Modified on 02/21/23	11	49	49	0	0	0	0	1
[5] † Gyrocystis badulesiensis Taxon name last Modified on 02/21/23	3	57	57	0	0	0	0	1
[6] † Gyrocystis erecta Taxon name last Modified on 02/21/23	26	34	34	0	0	0	0	1
[7] † Progyrocystis disjuncta Taxon name last Modified on 02/21/23	7	53	53	0	0	0	0	1
[8] † Protocinctus mansillaensis Taxon name last Modified on 02/21/23	9	51	51	0	0	0	0	1
[9] † Elliptocinctus barrandei Taxon name last Modified on 02/21/23	2	63	58	0	0	0	0	1
[10] † Elliptocinctus vizcainoi Taxon name last Modified on 02/21/23	11	49	49	0	0	0	0	1
[11] † Sucocystis theronensis Taxon name last Modified on 02/21/23	3	60	57	0	0	0	0	1
[12] † Sucocystis bretoni Taxon name last Modified on 02/21/23	5	56	55	0	0	0	0	1
[13] † Lignanicystis barriosensis Taxon name last Modified on 02/21/23	1	59	59	0	0	0	0	1
[14] † Undatacinctus undata Taxon name last Modified on 02/21/23	14	46	46	0	0	0	0	1
[15] † Sucocystis acrofera Taxon name last Modified on 02/21/23	8	52	52	0	0	0	0	1
[16] † Undatacinctus quadricornuta Taxon name last Modified on 02/21/23	10	50	50	0	0	0	0	1
[17] † Undatacinctus melendezi Taxon name last Modified on 02/21/23	12	48	48	0	0	0	0	1
[18] † Asturicystis jaekeli Taxon name last Modified on 02/21/23	5	55	55	0	0	0	0	1
[19] † Sotocinctus ubaghsi Taxon name last Modified on 02/21/23	5	56	55	0	0	0	0	1
[20] † Trochocystites bohemicus Taxon name last Modified on 02/21/23	2	62	58	0	0	0	0	1
[21] † Trochocystoides parvus Taxon name last Modified on 02/21/23	7	53	53	0	0	0	0	1
[22] † Ludwigicinctus truncatus Taxon name last Modified on 02/21/23	12	48	48	0	0	0	0	1
[23] † Graciacystis ambigua Taxon name last Modified on 02/21/23	4	58	56	0	0	0	0	1
[24] † Asturicystis havliceki Taxon name last Modified on 02/21/23	3	57	57	0	0	0	0	1
[25] † Nelegerocystis ivantzovi Taxon name last Modified on 02/21/23	60	0	0	0	0	0	0	1
[26] † Rozanovicystis triangularis Taxon name last Modified on 02/21/23	60	0	0	0	0	0	0	1
[27] † Davidocinctus pembrokensis Taxon name last Modified on 02/21/23	60	0	0	0	0	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	5
Project downloads	3
Matrix downloads	2	Cinctan matrix (2 downloads);