Abundance: 0.14 to 2.27%

Latitudinal range: 40.9° to 42.8°

Habitats: (2) only

Found in two samples

United States: McCann Canyon (Early Miocene), Martin Canyon Quarry A (Early Miocene)

M1 length	1.1 mm	N = 8	Wilson 1960
M1 width	1.0 mm	N = 8	Wilson 1960
P4 length	0.5 mm	N = 8	Wilson 1960
P4 width	0.6 mm	N = 8	Wilson 1960
m1 length	1.1 mm	N = 8	Wilson 1960
m1 width	0.9 mm	N = 8	Wilson 1960
m2 length	1.1 mm	N = 8	Wilson 1960
m2 width	1.0 mm	N = 8	Wilson 1960
M1 length	1.1 mm	N = 8	Wilson 1960
M1 width	1.0 mm	N = 8	Wilson 1960
P4 length	0.5 mm	N = 8	Wilson 1960
P4 width	0.6 mm	N = 8	Wilson 1960
m1 length	1.1 mm	N = 8	Wilson 1960
m1 width	0.9 mm	N = 8	Wilson 1960
m2 length	1.1 mm	N = 8	Wilson 1960
m2 width	1.0 mm	N = 8	Wilson 1960
M1 length	1.1 mm	N = 8	Wilson 1960
M1 width	1.0 mm	N = 8	Wilson 1960
P4 length	0.5 mm	N = 8	Wilson 1960
P4 width	0.6 mm	N = 8	Wilson 1960
m1 length	1.1 mm	N = 8	Wilson 1960
m1 width	0.9 mm	N = 8	Wilson 1960
m2 length	1.1 mm	N = 8	Wilson 1960
m2 width	1.0 mm	N = 8	Wilson 1960

See also Plesiosminthus, Plesiosminthus conjunctus, Plesiosminthus fremdi, Plesiosminthus myarion, Plesiosminthus promyarion, Plesiosminthus schaubi, Plesiosminthus sp.