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Summary
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English: Fig. 7. Agnostus pisiformis (Wahlenberg, 1818). A: SEM micrograph of an instar at meraspid stage 1b, viewed from the anterioronto the slightly gaping head (up) and tail shields (underneath) and the spherical hypostome (hy) “hanging down” from the headshield (UB 838; see MÜLLER & WALOSSEK 1987, cf. their pls. 12:5, 14:1,2, 16:1). Antennulae broken off (ant), only the more pos-terior limbs preserved in full pointing out of the “shell”. B–D: Reconstructions of post-antennular head limbs. B: Second cephalicappendage (“antenna” in Eucrustacea). C: Third cephalic appendage (“mandible” in Eucrustacea). D: Fourth cephalic appendage (“maxillula” in Eucrustacea). A longer arrow points to the club-shaped structures on the outer distal edge of the proximal endopodalportions, shorter arrows to the soft setae on the lateral edge of the proximal part of the exopods in C and D. Images not to scale. |
| Date | |
| Source | Maas A, Haug C, Haug JT, Olesen J, Zhang X, Waloszek D (2009) Early crustacean evolution and the appearance of epipodites and gills. Arthropod Systematics & Phylogeny 67(2): 255-273 https://doi.org/10.3897/asp.67.e31702 |
| Author | Andreas Maas, Carolin Haug, Joachim T. Haug, Jorgen Olesen, Xiguang Zhang, Dieter Waloszek |
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| current | 00:49, 29 December 2024 | | 975 × 420 (140 KB) | Qohelet12 | Uploaded a work by Andreas Maas, Carolin Haug, Joachim T. Haug, Jorgen Olesen, Xiguang Zhang, Dieter Waloszek from Maas A, Haug C, Haug JT, Olesen J, Zhang X, Waloszek D (2009) Early crustacean evolution and the appearance of epipodites and gills. Arthropod Systematics & Phylogeny 67(2): 255-273 https://doi.org/10.3897/asp.67.e31702 with UploadWizard |
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