Phylogeny of Middle–Late Ordovician lituitid cephalopods based on cladistic analysis

0545977 - GLÚ 2022 RIV GB eng J - Journal Article
Fang, X. - Pohle, A. - Kröger, B. - Aubrechtová, Martina - Burrett, C. - Zhang, Y. - Zhang, Y.
Phylogeny of Middle–Late Ordovician lituitid cephalopods based on cladistic analysis.
Journal of Systematic Palaeontology. Roč. 19, č. 9 (2021), s. 633-650. ISSN 1477-2019. E-ISSN 1478-0941
Institutional support: RVO:67985831
Keywords : cladistic analysis * maximum parsimony * Lituitidae * Sinoceratidae * Lituitida * Middle–Late Ordovician
OECD category: Paleontology
Impact factor: 3.152, year: 2021
Method of publishing: Limited access
https://www.tandfonline.com/doi/full/10.1080/14772019.2021.1944354

Phylogenetic studies are rare in early Palaeozoic cephalopods. Here, we present the first cladistic analysis of the order Lituitida based on published, as well as some new, material. Three clades are recovered within the ingroup of lituitids, Sinoceras, Ancistroceras and Lituites, the former two groups correspond to the family Sinoceratidae, and the latter one to the Lituitidae. The topology shows that the Sinoceratidae represents the basal branch, while the Lituitidae represents a monophyletic, derived clade. Furthermore, we describe new material of four species (three of which are newly defined) in four genera of the order Lituitida from the well-exposed, Middle to Upper Ordovician of Hubei (South China). The described species include Lituites evolutus Fang, Chen & Zhang, Sinoceras complexum Fang sp. nov., Tyrioceras longicameratum Fang sp. nov. and Rhynchorthoceras yizanense Fang sp. nov. Tyrioceras longicameratum from South China is the first reported occurrence of Tyrioceras in China, which has significant palaeogeographical implications.
Permanent Link: http://hdl.handle.net/11104/0323812