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 | |||
|---|---|---|---|
| Grooves | Branchiocardiac | extending from the cervical groove, NIGP-DYH-5-6, NIGP-Shen-1, NIGP- | |
| (a) | subparallel to median line | Shen-3, NIGP-Shen-5-6, NIGP-Shen-11, NIGP-Shen-15, NIGP-Shen-17, NIGP- Shen-32-33, NIGP-Shen-39-40, NIGP-Shen-51, NIGP-Shen-53, NIGP-Shen-58, NIGP-Shen-62, NIGPAS-126338, NIGPAS-126344, NIGPAS-126347, NIGPAS-126353, NIGPAS-126366, NIGP-Shen-a, NIGP- Shen-b-c, NIGP-Shen-GM1, sp3, sp8, sp15-17, sp20, sp22, sp24, sp27, Tohoku-U-57254, Tohoku-U-57272 | |
| Antennal (b) | oblique, forming an angle of around 40° compared to dorsal median line, joined posteriorly to the cervical groove | ||
| Hepatic (b1) | not visible / not present | ||
| Postcervical (c) | not visible / not present | ||
| Cardiac (ca) | extending from the branchiocardiac groove, parallel to the cervical groove, fading just before reaching median line | ||
| Gastro-orbital (d) | extending anteriorly from the mid-height | ||
| of the cervical groove, covering halft the | |||
| distance toward the anterior margin | |||
| Cervical (e1e) | deep, curved, crossing median line around | ||
| the mid-lenght of shield in medium to | |||
| large specimens, slightly behind the mid- | |||
| length of the shield in small specimens (= | |||
| cephalic region proportionally bigger in | |||
| small specimens than in larger ones) | |||
| Spines and | Subdorsal | parallel to median line, ending in the NIGP-Shen-1, NIGP-Shen-3, | |
| carinae | spine of the proximal part of rostrum, | NIGPAS-126346, NIGPAS-126347, | |
| anteriorly, ending posteriorly a short | NIGP-Shen-GM1, Tohoku-U-57272 | ||
| distance posterior to the level of ocular | |||
| incision | |||
| Postorbital | paired, dorsal part very close to the | ||
| subdorsal carina, formed of two spines | |||
| each continued posteriorly by a short | |||
| carina fading posteriorly; ventral part | |||
| formed of at least four spines forming | |||
| a slightly sinuous line (second spine | |||
| placed a little higher than the three | |||
| others) posterior to the ocular incision | |||
| Postrostral | over median line, with at least four spines, NIGPAS-Shen-68, | ||
| located posterior to the rostrum, on the | NIGPAS-126346-126347, NIGP- | ||
| anterior half of cephalic region | Shen-GM1, sp2, sp19 | ||
| Ornamentation | Cephalic area | fine granulation NIGP-Shen-1-3, NIGP-Shen-5, NIGP- | |
| Branchial area | fine granulation | Shen-11, NIGP-Shen-19, NIGP- Shen-32-33, NIGP-Shen-35, NIGP- | |
| Above branchial area | fine granulation, slightly coarser than elsewhere | Shen-39, NIGP-Shen-52, NIGP- Shen-58, NIGP-Shen-62, NIGP- | |
| Shen-68, NIGP-Shen-a, NIGP- | |||
| Shen-GM1, NIGP-Shen-RT132, | |||
| NIGPAS-126339, NIGPAS-126347, | |||
| NIGPAS-126366, sp2, sp4, sp8, sp11, | |||
| sp20, sp23, Tohoku-U-57272 | |||
| Gastroliths | circular in outline, relatively flat, one NIGP-Shen-2-4, NIGP-Shen-12-13, | ||
| side convex and rounded, other side | NIGP-Shen-19, NIGP-Shen-26, NIGP- | ||
| with a thick rim and a depression in | Shen-32-34, NIGP-Shen-38, NIGP- | ||
| the middle, generally massive, some | Shen-52, NIGP-Shen-54, NIGP-Shen-a, | ||
| smaller, probably depending on the | NIGPAS-126338, NIGPAS-126346, | ||
| growth stage | NIGPAS-126353, NIGPAS-126366, | ||
| sp18 | |||
Notes
Published as part of Audo, Denis, Kawai, Tadashi, Letenneur, Charlène & Huang, Diying, 2023, Crayfishes from the Jehol biota, pp. 711 in Geodiversitas 45 (24) on page 711, 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)