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Journal Article

TREMADOCIAN STYLOPHORAN ECHINODERMS FROM THETAEBAEKSAN BASIN, KOREA Available to Purchase

SEUNG-BAE LEE, BERTRAND LEFEBVRE, DUCK K. CHOI
Published: 01 November 2006
Journal of Paleontology (2006) 80 (6): 1072–1086.
DOI: https://doi.org/10.1666/0022-3360(2006)80[1072:TSEFTB]2.0.CO;2
...SEUNG-BAE LEE; BERTRAND LEFEBVRE; DUCK K. CHOI Abstract Abundant isolated elements of cornute and mitrate stylophorans were recovered from the upper Tremadocian Tumugol Formation in the Taebaeksan Basin, Korea. Cornute skeletal elements comprise a diverse assemblage of marginals and brachials...
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Figure10—Adorals of Taebaekocystis truncata (Kobayashi, 1960) and Anatifopsis sp. from Korea. 1, Natural internal mold of a left adoral of T. truncata (PA2422); holotype, figured in Kobayashi (1960, pl. 13, fig. 1); Mungok Formation (Tremadocian), Yongwol, Korea; ×8.7. 2, T. truncata (PA2421); syntype of A. cocabanKobayashi, 1960, figured in Kobayashi (1960, pl. 13, fig. 6); Mungok Formtaion (Tremadocian), Yongwol, Korea; ×7.0. 3, SNUP2545; natural internal mold of a right adoral of A. sp.; Tumugol Formation (Asaphellus Zone) of Sokkaejae (LT1); ×9.8. 4, SNUP131; natural internal mold of a right adoral of A. sp.; Tumugol Formation (Asaphellus Zone, Tremadocian) of Tongjom (H12), ×4.3

Figure 10 —Adorals of Taebaekocystis truncata ( Kobayashi, 1960 ) and A... Available to Purchase

Published: 01 November 2006
. truncata (PA2421); syntype of A. cocaban Kobayashi, 1960 , figured in Kobayashi (1960 , pl. 13, fig. 6); Mungok Formtaion (Tremadocian), Yongwol, Korea; ×7.0. 3 , SNUP2545; natural internal mold of a right adoral of A . sp.; Tumugol Formation ( Asaphellus Zone) of Sokkaejae (LT1); ×9.8. 4 , SNUP131
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Figure3—Generalized columnar sections of the two fossil localities of the Tumugol Formation, showing lithology and fossil horizons

Figure 3 —Generalized columnar sections of the two fossil localities of th... Available to Purchase

Published: 01 November 2006
Figure 3 —Generalized columnar sections of the two fossil localities of the Tumugol Formation, showing lithology and fossil horizons
Image
Figure7—Fragments of peltocystidan aulacophores, arms, and isolated brachials from the Asaphellus Zone, Tumugol Formation of Sokkaejae section, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1, 6, Portion of the arm showing the two series of alternating cover plates in connection with, and articulated to, the underlying ossicles SNUP2534 (LT9), plan view and lateral view, respectively, ×14.2. 2, 3, 7, Saddle-shaped stylocone, SNUP2516 (LT39), plan view of latex cast from the external mold and lateral view of latex cast, respectively, ×25.5. 4, 8, A stylocone SNUP2536 (LT9), plan view and lateral view of latex cast, respectively, 33.1. 5, Isolated single cover plate showing stout and protruded articulatory facet on rhombic plate, SNUP2539 (LT9), latex cast, ×36.8. 9, 10, Plan view of upper surface of a single ossicle (brachial) showing no transverse groove, SNUP2537 (LT9) and SNUP2538 (LT9), latex casts, ×35.3

Figure 7 —Fragments of peltocystidan aulacophores, arms, and isolated brac... Available to Purchase

Published: 01 November 2006
Figure 7 —Fragments of peltocystidan aulacophores, arms, and isolated brachials from the Asaphellus Zone, Tumugol Formation of Sokkaejae section, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1, 6, Portion of the arm showing the two series of alternating cover plates
Image
Figure5—Isolated peltocystidan marginal elements from the Asaphellus Zone, Tumugol Formation of Sokkaejae section, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–3, Type C marginal M′1, SNUP2543 (LT9); 1, 2, plan view of internal mold and latex cast, respectively, ×10.7; 3, front view of latex cast, ×13.0. 4, 11, Latex cast of type A marginal M′1, SNUP2527 (LT9); 4, front view, 17.1; 11, plan view, 8.9. 5, Latex cast of lower surface of polygonal marginal Z, SNUP2548 (LT9), ×16.7. 6, 7, Latex cast of type B marginal M′1, SNUP2549; 6, front view, ×7.6; 7, plan view, ×6.6. 8, 9, Marginal M′1, SNUP2513 (LT39); 8, plan view of internal mold, ×12.7; 9, plan view of latex cast, ×12.7. 10, Latex cast of SNUP2533 (LT9); plan view of marginal M′1, ×13.4. 12, Latex cast of SNUP2547 (LT36), lower surface of marginal M′1, ×7.4. 13, Latex cast of SNUP2542 (LT9), plan view of marginal (M2 or M′3), ×13.6. 14, Latex cast of Y-shaped marginal Z, SNUP2519 (LT38), ×14.3

Figure 5 —Isolated peltocystidan marginal elements from the Asaphellus Z... Available to Purchase

Published: 01 November 2006
Figure 5 —Isolated peltocystidan marginal elements from the Asaphellus Zone, Tumugol Formation of Sokkaejae section, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–3, Type C marginal M′1, SNUP2543 (LT9); 1, 2 , plan view of internal mold and latex cast, respectively, ×10.7
Image
Figure9—Isolated adorals of Taebaekocystis cocaban (Kobayashi, 1960) from the Asaphellus Zone, Tumugol Formation of Tongjom and Sokkaejae sections, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–7, Right adorals; 1, 2, SNUP25 (H12), internal mold and latex cast, respectively, ×5.7; 3, SNUP2520 (LT36), internal mold, ×14.3; 4, SNUP2530 (LT9), latex cast of internal mold, ×7.1; 5, SNUP2532 (LT9), latex cast of external mold, ×7.2; 6, 7, SNUP54 (H6), internal mold and latex cast, respectively, ×6.4. 8–19, Left adorals; 8, 9, SNUP2525 (LT33), internal mold and latex cast, respectively, ×5.3; 10, SNUP2515 (LT39), internal mold, ×6.4; 11, SNUP2521 (LT36), internal mold, ×17.7; 12, SNUP136 (H14), internal mold, ×7.2; 13, SNUP2526 (LT15), internal mold, ×7.2; 14, SNUP2546 (LT9), latex cast of internal mold, ×4.8; 15, SNUP20 (H11), latex cast of internal mold, ×6.8; 16, SNUP104 (H6), latex cast of partly preserved internal mold, ×10.7; 17, SNUP55 (H9), latex cast of a partly preserved internal mold showing very short posterior portion, ×10.7; 18, SNUP2524 (LT33), latex cast of external mold, ×7.2; 19, SNUP2531 (LT9), latex cast of external mold, ×7.2

Figure 9 —Isolated adorals of Taebaekocystis cocaban ( Kobayashi, 1960 )... Available to Purchase

Published: 01 November 2006
Figure 9 —Isolated adorals of Taebaekocystis cocaban ( Kobayashi, 1960 ) from the Asaphellus Zone, Tumugol Formation of Tongjom and Sokkaejae sections, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–7, Right adorals; 1, 2 , SNUP25 (H12), internal mold and latex cast
Image
Figure4—Isolated skeletal elements of cornutes from the Asaphellus Zone, Tumugol Formation of Tongjom and Sokkaejae sections, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–13, 20, Marginal elements; 1, 2, upper surface of spinal blade, SNUP2504 (H14), natural mold and latex cast, ×16.8; 3, upper surface of curved lateral marginal, SNUP2512 (H5), latex cast, ×16.8; 4, lower surface of spinal blade, SNUP2509 (H14), latex cast, ×26.9; 5, upper surface of spinal blade, SNUP2523 (LT33), latex cast, ×21.3; 6, 7, lower surface of spinal blade, SNUP2502 (H14), natural mold and latex cast, respectively, ×21.3; 8, posterior marginal, SNUP2501 (H14), latex cast, ×21.3; 9, lower surface of spinal blade, SNUP2506 (H14), latex cast, ×20.2; 10, upper surface of spinal blade, SNUP2503 (H14), latex cast, ×21.3; 11, upper surface of M′1, SNUP2510 (H14), latex cast, ×28.3; 12, upper surface of M′1, SNUP2508 (H14), latex cast, ×28.3; 13, upper surface of M′1, SNUP2507 (H14), latex cast, ×28.3; 20, posterior marginal, SNUP2514 (LT39), latex cast, ×25.5. 14, 15, Latex cast of spiny element; 14, SNUP2540 (LT9), ×36.1; 15, SNUP2544 (LT9), ×30.7. 16–19, Arm elements; 16, brachial, SNUP2511 (H14), latex cast, ×28.3; 17, stylocone, SNUP2541 (LT9), latex cast, ×31.1; 18, stylocone, SNUP2517 (LT39), latex cast, ×28.3; 19, two stylocones, SNUP2518 (LT39), latex cast, ×28.3

Figure 4 —Isolated skeletal elements of cornutes from the Asaphellus Zon... Available to Purchase

Published: 01 November 2006
Figure 4 —Isolated skeletal elements of cornutes from the Asaphellus Zone, Tumugol Formation of Tongjom and Sokkaejae sections, Taebaeksan Basin, Korea. Stratigraphic intervals in brackets. 1–13, 20, Marginal elements; 1, 2, upper surface of spinal blade, SNUP2504 (H14), natural mold
Journal Article

LATEST CAMBRIAN CORNUTES (ECHINODERMATA: STYLOPHORA) FROM THE TAEBAEKSAN BASIN, KOREA Available to Purchase

SEUNG-BAE LEE, BERTRAND LEFEBVRE, DUCK K. CHOI
Published: 01 January 2005
Journal of Paleontology (2005) 79 (1): 139–151.
DOI: https://doi.org/10.1666/0022-3360(2005)079<0139:LCCESF>2.0.CO;2
... of the Taebaeksan Basin ( Fig. 1.1 ) and comprises the Changsan/Myonsan, Myobong, Taegi, Sesong, Hwajol, Tongjom, Tumugol, Makkol, Chigunsan, and Tuwibong Formations in ascending order ( Kobayashi, 1966 ; Choi, 1998 ). The Tongjom Formation, from which the stylophorans were recovered, consists largely of light...
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