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Steorrosia

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Dorsal carapace of <b>Steorrosia</b> aspera ( Rathbun, 1935 ), a member of Etyidae...
Published: 01 January 2012
F igure 1 Dorsal carapace of Steorrosia aspera ( Rathbun, 1935 ), a member of Etyidae, USNM 543680, showing the position of the cervical groove (c), mesobranchial region (mb), branchial groove 1 (bg1), and branchial groove 2 (bg2). Possession of some combination of these features is diagnostic
Image
Etyidae, <b>Steorrosia</b> aspera ( Rathbun, 1935 ), USNM 543680, female, dorsal (...
Published: 01 January 2012
F igure 6 Etyidae, Steorrosia aspera ( Rathbun, 1935 ), USNM 543680, female, dorsal ( 1 ), ventral ( 2 ), anterior ( 3 ), and posterior ( 4 ) views. Scale bar = 1 cm.
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Etyidae, <b>Steorrosia</b> pawpawensis ( Schweitzer Hopkins et al., 1999 ).  1 ,  ...
Published: 01 January 2012
F igure 7 Etyidae, Steorrosia pawpawensis ( Schweitzer Hopkins et al., 1999 ). 1 , 2 , USNM 543690, male, dorsal carapace (1) and (2) male sternum and pleon; 3 , USNM 543691, female sternum and pleon; 4 , USNM 543692; female pleon; 5 , USNM 543693, mature female pleon. Scale bars = 1 cm.
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Localities for specimens of <b>Steorrosia</b> spp., Feldmannia wintoni, and Caloxa...
Published: 01 January 2012
T able 1 Localities for specimens of Steorrosia spp., Feldmannia wintoni, and Caloxanthus americanus.
Journal Article
Published: 01 January 2012
Journal of Paleontology (2012) 86 (1): 129–155.
...F igure 1 Dorsal carapace of Steorrosia aspera ( Rathbun, 1935 ), a member of Etyidae, USNM 543680, showing the position of the cervical groove (c), mesobranchial region (mb), branchial groove 1 (bg1), and branchial groove 2 (bg2). Possession of some combination of these features is diagnostic...
FIGURES | View All (15)
Image
Sternal architecture of members of Feldmanniidae ( 1 ,  2 ,  4 ) and Etyida...
Published: 01 January 2012
Rathbun, 1935 , USNM 543699, female, showing spermatheca as enlarged ovate opening on sternal suture 7/8; 3 , 4 Steorrosia pawpawensis ( Schweitzer Hopkins et al., 1999 ), USNM 543683, female, oblique ventral views showing spermatheca positioned entirely on sternite 7 and not as part of sternal suture