Agnostida

Pleuroctenium granulatum

Order Agnostida / Suborder Agnostina / Superfamily Condylopygoidea / Family Condylopygidae

Cambrian, Miaolingian, DrumianCzech Republic, UK, Canada
Pleuroctenium granulatum — photo 1
Photo 1 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Pleuroctenium granulatum — photo 2
Photo 2 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Pleuroctenium granulatum — photo 3
Photo 3 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Pleuroctenium granulatum — photo 4
Photo 4 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Pleuroctenium granulatum — photo 5
Photo 5 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Pleuroctenium granulatum — photo 6
Photo 6 · Lectotype NM-CC 250, No. Recons BGS IGS Zs 4571 1008 tructio n (Czech Republic; (UK; Whittington et al., 1997) (Samuel M. Gon III 2009) Whittington et al., 1997) Complete dorsal shield Complete dorsal shield NFM YA 604 and the F-1949, 1950 comb-like structure on (Canada; Hildenbran et al., 2021) its pygidial lateral margin (Czech Republic; Fatka et al., 2004)
Classification
Order Agnostida / Suborder Agnostina / Superfamily Condylopygoidea / Family Condylopygidae
Genus
Pleuroctenium Hawle & Corda, 1847
Genus author
Hawle I. & Corda A. J. C.
Genus etymology
pleuro-, Greek, side, rib; -ctenium, comb.
Species
P. granulatum (Barrande, 1846)
Species author
Barrande J.
Species etymology
granulatum, granular.
Age
Cambrian, Miaolingian, Drumian
Distribution
Czech Republic, UK, Canada
Synonyms
Battus granulatum; Agnostus granulatus; Dichagnostus granulatus; Pleuroctenium scanense; Pleuroctenium granulatum granulatum; Pleuroctenium granulatum scanense
Diagnosis
Body surface densely covered with small granules; cephalon and pygidium with distinct border, border furrow narrow; glabellar frontal lobe crescentic, enveloping the glabellar posterior lobe; anterior lobe of pygidial axis divided into three rings, middle axial nodes independent, posterior lobe inflated globular; a pair of long lateral spines projecting from the lateral margins of the pygidium, the lateral margins and lateral spines with comb-like structures.
Remarks
This species is the type species of Pleuroctenium.