Fig. 1 
» 
Figs. 3,4 
Fig 5. 
6. 
To 
Fig 8. 
9. 
10 
ala] 
12 
1133, 
Fig 14. 
Fig 15 
Fig. 16. 
PLATH NIV. 
PVARPUNA OLDAWEINSIS ysis) Ree aietercteritetevan cia caelleneaa eee 
. Dorsal view of an incomplete head. Jacksonburg, Lo- 
cality 174 A. 
. Impression of the marginal border of the head. Same 
locality. 
TRIN UCLEUS| CONCHNTRICUS (Maton) s. 2.2). 44-1 -)s selere eae 
. Dorsal and anterior views of a nearly complete head. 
Jacksonburg, Locality 174 A.” 
TSOTHEUS! GIGAS Me cINaiy te cueveteons crane fells raust stoi reicehs fererciieist onees 
A small, complete individual (after Clarke). 
A small, incomplete pygidium. Jacksonburg, Locality 
TLA. 
A large, nearly complete free cheek. Near Beaver Run, 
Locality 79 A. ; 
BUMASTIUS TRENTONENSIS (Himm.).................;.. 
A nearly complete individual with the head crowded out 
of place. Jacksonburg, Locality 174 A.” 
A complete cranidium, partially exfoliated. Same locality. 
. A larger, incomplete cranidium. Jacksonburg, Locality 
LT4 A. 
. A nearly complete pygidium. Jacksonburg, Locality 
Ths ALO 
. A small, complete pygidium. Near Iliff's Pond, Locality 
DOrAte 
A complete free cheek. Jacksonburg, Locality 174 A.* 
DOINONSMM OS TUDAINSWSINSAITINS) Tay Kdgu6 cad ondoeon0 eo 00605 
The cranidium and pygidium of an individual, with frag- 
ments of the thoracic segments. Hainesburg, Locality 
192 A. 
IOUS AMOS) IILGOINICEMMOS Ih Sse boas doasangaccocccab ead 
15. A complete pygidium, slightly distorted. Near Springdale, 
Locality 156 A. 
IDI COIS CONG GIHISNAAVINISIUS) ly Kyo ddlo odo ocodloorucdudaac 
An incomplete pygidium. Jacksonburg, Locality 174A. 
(407) 
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