Morphobank

Project 4516: B. Gudveig Baarli, B. Huang, L. S. Maroja. 2022. Phylogeny of the Ordovician and Silurian members of the order Atrypida. Journal of Systematic Palaeontology. 20 (1):2145920.

Specimen: † Protatrypa (unvouchered)
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Abstract

Brachiopods belonging to order Atrypida originated in the Middle Ordovician and went extinct in the Late Devonian. Few cladistic studies have been undertaken for this group. Here we investigate their early evolution through Silurian time. We present a parsimony-based phylogenetic analysis of 41 characters and 70 genera representing all the early taxonomic groups within the order. The stratigraphical record of the fossil genera analysed strongly aligns with the phylogeny recovered from our parsimony analysis. Most currently recognized subfamilies and families may be identified within clades, except for the Atrypinae, Idiospirinae, and the Septatrypidae. This warrants subdivision of the former and redefinition of the latter two. The subfamily Atrypinae is redefined, and a new subfamily of the Atrypidae, the Protatrypinae, is split off. Tracing character evolution across the tree indicates that the calcified spiralia and a jugum or jugal processes characterize all members of the Atrypida, except the most basal clade, the Cyclospiridae, which lacks a calcified jugum. Ribs are a homoplasious character, occurring in numerous clades throughout the tree. Darriwillian through Sandbian ages represent times with rapid evolution when most new autapomorphies seen in the atrypides evolved. This interval is the first major part of the Great Ordovician Biodiversification Event (GOBE). Solid teeth, dorsal direction of spiralia, elaborate ornamentation, and frills evolved in the latest Katian into early Silurian time. Solid teeth seen in distantly related clades from latest Katian onwards may be an analogous feature. The Late Ordovician Mass Extinction (LOME) is indicated in the stratigraphical tree together with a possible event at the end of the Aeronian. The tree supports the long-held assumptions that the Plectatrypinae evolved from the Spirigerininae. It further suggests that the genus Tuvaella may be included with the Davidsonioidea. Likewise, the redefined Atrypinae is a sister group of the Lissatrypidae and a derived group in the phylogenetic tree

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Article DOI: 10.1080/14772019.2022.2145920

Project DOI: 10.7934/P4516, http://dx.doi.org/10.7934/P4516

This project contains	Matrices
1 Media 1 Matrix 1 Document 70 Taxa 1 Specimen 41 Characters Total size of project's media files: 132.21k Download Project SDD File	Total scored cells: 2854 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 41 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 138 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:41/0

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MorphoBank Project 4516

Creation Date:
09 January 2023
Publication Date:
10 January 2023
Matrix downloads: 1

Authors' Institutions

Williams College

Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences

Members

MorphoBank Curator
Project Administrator

2854
(2854, 0, 0)

Taxonomic Overview for Matrix 'M29109' (70 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Atrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[2] † Eiratrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[3] † Askerina Taxon name last Modified on 01/10/23	3	38	38	0	0	0	0	1
[4] † Dihelictera Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[5] † Endrea Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[6] † Gotatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[7] † Joviatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[8] † Nottina Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[9] † Oglupes Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[10] † Procarinatina Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[11] † Protatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[12] † Rhinatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[13] † Sifella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[14] † Zygospiraella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[15] † Eospinatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[16] † Atrypina Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[17] † Gracianella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[18] † Clintonella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[19] † Alispira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[20] † Anabaria Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[21] † Athyrisinoides Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[22] † Beitaia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[23] † Nalivkinia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[24] † Rongatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[25] † Plectatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[26] † Bockeliena Taxon name last Modified on 01/10/23	1	40	40	0	0	0	0	1
[27] † Xanthea Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[28] † Spirigerina Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[29] † Australispira Taxon name last Modified on 01/10/23	1	40	40	0	0	0	0	1
[30] † Eospirigerina Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[31] † Pectenospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[32] † Qilianotryma Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[33] † Schachriomonia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[34] † Sulcatospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[35] † Atrypinella Taxon name last Modified on 01/10/23	2	39	39	0	0	0	0	1
[36] † Limbatrypa Taxon name last Modified on 01/10/23	2	39	39	0	0	0	0	1
[37] † Recticulatrypa Taxon name last Modified on 01/10/23	1	40	40	0	0	0	0	1
[38] † Anazyga Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[39] † Zygatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[40] † Zygospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[41] † Catazyga Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[42] † Pentlandella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[43] † Tuvaella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[44] † Lissatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[45] † Atrypellina Taxon name last Modified on 01/10/23	1	40	40	0	0	0	0	1
[46] † Atrypoidea Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[47] † Australina Taxon name last Modified on 01/10/23	2	39	39	0	0	0	0	1
[48] † Cerasinella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[49] † Cromatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[50] † Eisaella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[51] † Meifodia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[52] † Parmula Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[53] † Thulatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[54] † Septatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[55] † Becscia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[56] † Idiospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[57] † Webbyspira Taxon name last Modified on 01/10/23	1	40	40	0	0	0	0	1
[58] † Glassia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[59] † Protozyga Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[60] † Manespira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[61] † Xyslia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[62] † Cyclospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[63] † Rozmanospira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[64] † Kellerella Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[65] † Nikolaispira Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[66] † Zeravshania Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[67] † Davidsonia Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[68] † Eifelatrypa Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1
[69] † Carinatina Taxon name last Modified on 01/10/23	2	39	39	0	0	0	0	1
[70] † Ancistrorhyncha Taxon name last Modified on 01/10/23	0	41	41	0	0	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	2
Project downloads	1
Matrix downloads	1	Matrix (1 download);