Published December 14, 2023
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Appendix 1 in Crayfishes from the Jehol biota
Authors/Creators
- 1. Centre de Recherche en Paléontologie - Paris (CR 2 P, UMR 7207), MNHN, CNRS, Sorbonne Université, Muséum national d'Histoire naturelle, 57 rue Cuvier, F- 75231 Paris cedex 05 (France)
- 2. Hokkaido Research Organization, Central Fisheries Research Institute, 238 Hamanaka, Yoichi, 045 - 8555 Hokkaido (Japan)
- 3. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008 (China)
Description
Appendix 1. — Continuation.
| Description | Observed on specimens | |||
|---|---|---|---|---|
| Pleonite 1 | Dorsal part | smooth | NIGP-DYH-5, NIGP-Shen-1, NIGP- | |
| Axial carina Tergopleuron | none subquadrate, with a slightly rounded margin, angle slightly acuminate, smaller than the others | Shen-4, NIGP-Shen-32, NIGP- Shen-34-35, NIGP-Shen-38-39, NIGP- Shen-42, NIGP-Shen-52, NIGP- Shen-71, NIGP-Shen-a, NIGP-Shen-b, NIGP-Shen-h, NIGP-Shen-RT132, | ||
| Pleonite 2 | Dorsal part | smooth | NIGPAS-126346, 126353, sp1-2, sp4, | |
| Axial carina | none | sp8-9, sp11, sp20, sp24, sp30, sp31, Tohoku-U-57254, Tohoku-U-57272 | ||
| Tergopleuron | wide, ovoid, extending over s1 | |||
| tergopleuron anteriorly and s3 | ||||
| tergopleuron posteriorly | ||||
| Pleonite 3 | Dorsal part | smooth | ||
| Axial carina | none | |||
| Tergopleuron | subquadrate, with a slightly rounded | |||
| margin, angle slightly acuminate, larger | ||||
| than s4-s6 tergopleura | ||||
| Pleonite 4 | Dorsal part | smooth | ||
| Axial carina | none | |||
| Tergopleuron | subquadrate, with a slightly rounded | |||
| margin, angle slightly acuminate, larger | ||||
| than s5-s6 tergopleura | ||||
| Pleonite 5 | Dorsal part | smooth | ||
| Axial carina | none | |||
| Tergopleuron | subquadrate, with a slightly rounded | |||
| margin, angle slightly acuminate, larger | ||||
| than s6 tergopleuron | ||||
| Pleonite 6 | Dorsal part | smooth | ||
| Axial carina | none | |||
| Tergopleuron | subquadrate, with a slightly rounded | |||
| margin, angle slightly acuminate | ||||
| Ornamentation | covered in scattered tubercles, coarser | |||
| between branchiocardiac grooves | ||||
| Telson | Outline | subrectangular, with straight lateral | NIGP-DYH-4-6, NIGP-Shen-14, NIGP- | |
| margins and slightly curved posterior | Shen-16-19, NIGP-Shen-38-40, NIGP- | |||
| margin | Shen-64, NIGP-Shen-66-67, NIGP- | |||
| Surface Diaresis | with a pair of lateral carina, thick and tuberculated anterior to the diaeresis, smooth and thin posterior to diaeresis almost straight, slightly curved laterally, cutting telson at 3/4 of its length | Shen-71, NIGP-Shen-f, NIGP-Shen-g, NIGP-Shen-RT132, NIGP-Shen-RT145, NIGPAS-126345, NIGP-126353, NIGPAS-12354, sp1-2, sp5, sp9, sp11, sp16, sp20, sp24, sp26, sp28, sp29, Tohoku-U-57254 | ||
| Eyes | Shape | ovoid, small from 0.62 to 4.1 mm (3-9 % | NIGP-DYH-5, NIGP-Shen-38, NIG- | |
| of CL) | Shen-40, sp1, sp4, sp11, sp14, sp22 | |||
| Ommatidia | square facets each from 14 µm to 61 µm | |||
| long (side of the square) | ||||
| Setae | none visible | |||
| Cephalic | Antennula a1 | Basis | formed of at least three stocky | NIGP-DYH-4, NIGP-Shen-1, NIGP- |
| appendages | cylindrical podomeres, reaching | Shen-6, NIGP-Shen-12-13, NIGP- | ||
| to the second podomere of antennal | Shen-18, NIGP-Shen-20, NIGP- | |||
| endopod, first (proximal) podomere | Shen-22, NIGP-Shen-23, NIGP- | |||
| with a dorsal depression leaving room | Shen-26, NIGP-Shen-34, NIGP- | |||
| to the eye stalk | Shen-38, NIGP-Shen-71, | |||
| Endopod Exopod | short flagellum, slightly shorter and thinner NIGPAS-126337-126338, than the exopod NIGPAS-126343, NIGPAS-126353, sp4-5, sp8, sp11, sp20, sp22, sp24-25, short flagellum, about 1/3 cephalothorax sp27, sp29-30, Tohoku-U-57254 length | |||
Notes
Published as part of Audo, Denis, Kawai, Tadashi, Letenneur, Charlène & Huang, Diying, 2023, Crayfishes from the Jehol biota, pp. 713 in Geodiversitas 45 (24) on page 713, DOI: 10.5252/geodiversitas2023v45a24, http://zenodo.org/record/10376394
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Related works
- Is part of
- Journal article: 10.5252/geodiversitas2023v45a24 (DOI)
- Journal article: urn:lsid:plazi.org:pub:8F415C75FFC7FFB4FFF7FFF6A451CB26 (LSID)
- Journal article: http://publication.plazi.org/id/8F415C75FFC7FFB4FFF7FFF6A451CB26 (URL)
- Journal article: http://zenodo.org/record/10376394 (URL)
- Journal article: http://zoobank.org/urn:lsid:zoobank.org:pub:73B795BD-23BA-44AA-98CA-0F62DAA3CAD7 (URL)