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Anthracospirifer arcoensis

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Table 2 —Shell dimensions (in millimeters) of Anthracospirifer arcoensis ...

Published: 01 January 2007
Table 2 —Shell dimensions (in millimeters) of Anthracospirifer arcoensis n. sp
Journal Article

SILICIFIED CARBONIFEROUS (CHESTERIAN) BRACHIOPODA OF THE ARCO HILLS FORMATION, IDAHO

SUSAN H. BUTTS
Published: 01 January 2007
Journal of Paleontology (2007) 81 (1): 48–63.
DOI: https://doi.org/10.1666/0022-3360(2007)81[48:SCCBOT]2.0.CO;2
...Table 2 —Shell dimensions (in millimeters) of Anthracospirifer arcoensis n. sp ...
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Figure5—All figures are natural size unless otherwise noted. 1, 2,Schizophoria (Schizophoria) depressa, 1, YPM 174511, ventral valve interior and median septum; 2, YPM 174442, anterior view; 3–10,Schizophoria (Schizophoria) resupinataMartin, 1809, 3, YPM 174423, profile of dorsal valve; 4, YPM 174423, profile of ventral valve; 5, YPM 174423, ventral interior showing dental plates and median septum; 6, YPM 174424, posterior view of complete (crushed) specimen; 7, YPM 174423, ventral view showing exterior lirae; 8, YPM 174423, ventral interior; 9, YPM 174423, dorsal view showing lirae, 10, YPM 174423, dorsal interior showing brachiophores; 11–13,Pugnoides quinqueplicusEaston, 1962, 11, YPM 174436, ventral view; 12, YPM 174436, dorsal view; 13, YPM 174436, anterior commissure, dorsal valve below; 14–16,Leiorhynchoidea carbonifera (Girty, 1911), 14, YPM 174405, ventral exterior; 15, YPM 174405, dorsal exterior; 16, YPM 174405, commissure; 17–19,Cleiothyridina sublamellosa (Hall, 1858), 17, YPM 174428, spinose frills, ×13; 18, YPM 144428, ventral valve exterior, ×2; 19, YPM 174518, dorsal valve exterior; 20–23,Composita sigma Gordon, 1975a, 20, YPM 174521, ventral exterior; 21, YPM 174521, dorsal view; 22, YPM 174521, anterior commissure (dorsal valve below); 23, YPM 174432, jugal saddle (center) and showing one umbonal blade; 24–26,Composita subquadrata (Hall, 1858) Gordon, 1975a, 24, YPM 174429, ventral exterior; 25, YPM 174429, dorsal view; 26, YPM 174429, anterior commissure (dorsal valve below); 27–33,Composita idahohensis n. sp., 27, YPM 174523, ventral exterior, ×0.7; 28, YPM 174523, dorsal view, ×0.7; 29, YPM 174523, commissure, ×0.7; 30, YPM 174522, ventral view, ×0.6; 31, YPM 174522, dorsal view, ×0.7; 32, YPM 174522, anterior commissure, ×0.6; 33, YPM 174527, ventral exterior; 34–36,Anthracospirifer occiduus (Sadlick) N. G. Lane, 1964, 34, YPM 174433, ventral valve exterior; 35, YPM 174443, ventral valve interior and interarea; 36, YPM 174534, ventral valve exterior; 37–39,Anthracospirifer curvilateralis curvilateralis (Easton) Gordon, 1975a, 37, YPM 174537, ventral exterior; 38, YPM 174536, ventral interior and grooved interarea; 39, YPM 174539, crushed specimen; 40, 41,Anthracospirifer shawi exoletus Gordon, 1975a, 40, YPM 174461, ventral exterior; 41, YPM 174461, ventral interior; 42–44,Anthracospirifer shawi shawiGordon, 1975a, 42, YPM 207361, ventral valve exterior; 43, YPM 174412, ventral valve exterior; 44, YPM 174445, ventral valve interior; 45, 46,Anthracospirifer leidyi (Norwood and Pratten) Henry and Gordon, 1992, 45, YPM 174408, ventral valve exterior; 46, YPM 174408, ventral valve interior; 47–51,Anthracospirifer arcoensis n. sp., 47, YPM 174540 (holotype), ventral valve exterior; 48, YPM 174550, ventral valve interior; 49, YPM 174450, ventral valve exterior; 50, YPM 174549, ventral valve exterior; 51, YPM 174488, ventral valve exterior; 52, 53, ?Torynifer sp., 52, YPM 174410, ventral exterior; 53, YPM 174410, ventral interior, 54–58,Punctospirifer transverses (McChesney, 1860), 54, YPM 174551, dorsal articulation; 55, YPM 174551, dorsal valve exterior; 56, YPM 174551, dorsal valve interior; 57, YPM 174441, ventral exterior (cardinal extremities broken); 58, YPM 174441, dorsal view (cardinal extremities broken)

Figure 5 —All figures are natural size unless otherwise noted. 1, 2, Sch...

Published: 01 January 2007
and Pratten) Henry and Gordon, 1992 , 45, YPM 174408, ventral valve exterior; 46, YPM 174408, ventral valve interior; 47–51, Anthracospirifer arcoensis n. sp., 47, YPM 174540 (holotype), ventral valve exterior; 48, YPM 174550, ventral valve interior; 49, YPM 174450, ventral valve exterior; 50