Polygnathus
Polygnathus is an extinct genus of conodonts.Species
- †Polygnathus acrinodosus Aboussalam 2003
- †Polygnathus alkhovikovae Baranov, Slavík & Blodgett 2014
- †Polygnathus angustipennatus Bischoff and Ziegler 1957
- †Polygnathus aragonensis Martínez-Pérez & Valenzuela-Ríos 2014
- †Polygnathus arthuri Baranov, Slavík & Blodgett 2014
- †Polygnathus bardashevi Baranov, Slavík & Blodgett 2014
- †Polygnathus bicristatus Mossoni et al. 2015
- †Polygnathus burretti Savage 2013
- †Polygnathus chongqingensis Wang in Gong et al. 2012
- †Polygnathus carlsi Martínez-Pérez & Valenzuela-Ríos 2014
- †Polygnathus communis
- * †Polygnathus communis hanensis Savage 2013
- * †Polygnathus communis longanensis Qie et al. 2014
- * †Polygnathus communis namdipensis Savage 2013
- * †Polygnathus communis phaphaensis Savage 2013
- †Polygnathus costatus Klapper 1971
- * †Polygnathus costatus partitus
- †Polygnathus crassulus
- * †Polygnathus crassulus salapensis Savage 2013
- †Polygnathus damelei Vodrazkova et al. 2011
- †Polygnathus dujieensis Qie et al. 2014
- †Polygnathus efimovae Kononova et al. 1996
- †Polygnathus extralobatus phoensis Savage 2013
- †Polygnathus hemiansatus
- †Polygnathus hemipennatus Aboussalam 2003
- †Polygnathus hojedki Gholamalian et al. 2013
- †Polygnathus holynensis Vodrazkova et al. 2011
- †Polygnathus housei Aboussalam 2003
- †Polygnathus ivanowskyii Baranov, Slavík & Blodgett 2014
- †Polygnathus karsteni Baranov, Slavík & Blodgett 2014
- †Polygnathus kitabicus
- †Polygnathus lezhoevi Baranov, Slavík & Blodgett 2014
- †Polygnathus ilmenensis Zhuravlev 2003
- †Polygnathus linguiformis Hinde
- †Polygnathus michaelmurphyi Baranov, Slavík & Blodgett 2014
- †Polygnathus nuragicus Mossoni et al. 2015
- †Polygnathus pollocki Druce 1976
- †Polygnathus postvogesi Plotitsyn & Zhuravlev 2017
- †Polygnathus praeinversus Lu et al. 2018
- †Polygnathus pseudocommunis Wang et al. 2016
- †Polygnathus pseudocostatus Klapper & Vodrážková 2013
- †Polygnathus ramoni Martínez-Pérez & Valenzuela-Ríos 2014
- †Polygnathus robertensis Vodrazkova et al. 2011
- †Polygnathus rossicus Zhuravlev 2000
- †Polygnathus salixensis Vodrazkova et al. 2011
- †Polygnathus settedabanicus Baranov, Slavík & Blodgett 2014
- †Polygnathus sharyuensis Ovnatanova et al. 2019
- †Polygnathus varcus Stauffer 1940
- †Polygnathus wapanuckensis Harlton 1933
- †Polygnathus yakutensis Baranov, Slavík & Blodgett 2014
Use in stratigraphy
The Tournaisian, the oldest age of the Mississippian, contains eight conodont biozones, one of which is defined by a Polygnathus species:
- the zone of Gnathodus pseudosemiglaber and Scaliognathus anchoralis
- the zone of Gnathodus semiglaber and Polygnathus communis
- the zone of Dollymae bouckaerti
- the zone of Gnathodus typicus and Siphonodella isosticha
- the zone of Siphonodella quadruplicata and Patrognathus andersoni
- the lower zone of Patrognathus andersoni
- the zone of Patrognathus variabilis
- the zone of Patrognathus crassus