identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
072187EE7566197247F03B36FEE7C491.text	072187EE7566197247F03B36FEE7C491.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cypridea Bosquet 1852	<div><p>Genus Cypridea Bosquet, 1852</p><p>Type species. Cypris granulosa (Sowerby, 1836)</p><p>Cypridea sp.</p><p>Figs. 2, 3A–B.</p><p>Material. One deformed carapace.</p><p>Remarks. Although only a deformed carapace was found, this specimen matches the morphologic characteristics of the genus Cypridea, having a rostrum. Due to the poor preservation of the specimen, it cannot be identified to the species level.</p></div>	https://treatment.plazi.org/id/072187EE7566197247F03B36FEE7C491	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7566197247F03D41FC72C540.text	072187EE7566197247F03D41FC72C540.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mongolocypris Szczechura 1978	<div><p>Genus Mongolocypris Szczechura, 1978</p><p>Type species: Cypridea distributa Stankevitch (in Stankevitch &amp; Sochava 1974)</p></div>	https://treatment.plazi.org/id/072187EE7566197247F03D41FC72C540	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7566197447F03DE9FE89C373.text	072187EE7566197447F03DE9FE89C373.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mongolocypris shai Wang 2025	<div><p>Mongolocypris shai sp. nov.</p><p>Figs. 2, 3C–O.</p><p>1985 Cypridea (Pseudocypridina) globra —Zhang: pl. 12, figs. 8a–b.</p><p>?1999 Langtonia setina rectidorsata —Nikolaeva &amp; Neustrueva: pl. 9, fig. 8.</p><p>?2005 Langtonia setila rectidorsata —Neustrueva et al.: p. 37, pl. 13, fig. 8. (misspelled)</p><p>Etymology. Named for the world-renowned Chinese geologist and paleontologist, Professor Jingeng Sha, in recognition of his significant contributions to our understanding of Mesozoic bivalves and the correlation of marine and non-marine Cretaceous stratigraphy. Additionally, he has been a longstanding mentor to YQW.</p><p>Holotype. NIGP 206909 (Fig. 3D–E), complete carapace, sample 2024-XNG-11 from the Guanghuanjie-Yumuqiaozi section of the Xiaonangou Formation, L: 1.52 mm, H: 0.90 mm, W: 0.74 mm.</p><p>Paratypes. NIGP 206910 (Fig. 3F–G), complete carapace, sample 2024-XNG-11 from the Guanhuanjie-Yumuqiaozi section of the Xiaonangou Formation, L: 1.46 mm, H: 0.81 mm, W: 0.62 mm ; NIGP 206912 (Fig. 3J– K), complete adult carapace, sample 2024-XNG-10A from the Guanhuanjie-Yumuqiaozi section of the Xiaonangou Formation, L: 1.52 mm, H: 0.90 mm, W: 0.71 mm ; NIGP 206915 (Fig. 3N–O), complete adult carapace, sample 2024-XNG-11 from the Guanhuanjie-Yumuqiaozi section of the Xiaonangou Formation .</p><p>Type locality. <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=126.57183&amp;materialsCitation.latitude=41.94289" title="Search Plazi for locations around (long 126.57183/lat 41.94289)">Guanhuanjie-Yumuqiaozi</a> section of the Baishan Basin, Xiaonangou Formation, Jilin, China (41°56'34.4"N, 126°34'18.6"E).</p><p>Type horizon. Lower part of the Guanhuanjie-Yumuqiaozi section, Xiaonangou Formation, Baishan Basin, Jilin, China.</p><p>Material. More than one hundred carapaces, but most of them compressed laterally and partially covered with sediment.</p><p>Dimensions. L: 1.36–1.52 mm, H: 0.76–0.96 mm, W: 0.56–0.80 mm.</p><p>Diagnosis. A species with elongated oval shape in lateral view; both anterior and posterior margins rounded and equicurvate; ventral margin nearly parallel to dorsal margin.</p><p>Description. Carapace very large size with thick shell, elongated oval shape in lateral view, elongated ovate in dorsal view. Maximum height at anterior cardinal angle, maximum length at mid-height, maximum width at 2/3 of length. LV&gt; RV; LV overlapping RV along all margins except for hinge margin. Anterior margin rounded and equicurvate, anterior cardinal angle rounded but remarkable, around 130–145°. Posterior margin equicurvate, posterior cardinal angle rounded, 130–145°. Dorsal margin nearly straight, gently sloping towards both anterior and posterior margins. Ventral margin nearly parallel to dorsal margin, slightly convex in LV. Rostrum short but visible, strongly bending backwards, its point acute and considerably overreaching ventral margin of the RV. Alveolar notch well-developed and triangle shape, more distinct in RV. Alveolar furrow absent. Hinge margin slightly incised, forming very shallow dorsal furrow. Surface smooth.</p><p>Remarks. Based on the very large carapace size (larger than 1.2 mm) and the development of the rostrum, the studied specimens are assigned to the genus Mongolocypris . Mongolocypris shai sp. nov. differs from other Mongolocypris species by its more visible rostrum in the RV and the ventral margin nearly parallel to the dorsal margin. Mongolocypris shai sp. nov. is the dominant species in the Xiaonangou Formation of the Baishan Basin. Cypridea (Pseudocypridina) globra Hou, 1958 as identified by Zhang (1985), differs from the original description by Hou (1958) in having a nearly straight dorsal margin and anterior and posterior margins of almost equal width, with a less pronounced backward curvature of the rostrum. However, these carapace characteristics fully match the diagnosis of M. shai sp. nov. of this study, and thus it is assigned to M. shai sp. nov. Langtonia setina rectidorsata Sylvester-Bradley, 1949 reported from Mongolia is questionably included [The genus Langtonia is considered as a synonym of Cypridea (Pseudocypridina) by Sames (2011a)]. Although the illustrations of Mongolian specimens in Nikolaeva and Neustrueva (1999) and Neustrueva et al. (2005) show a close resemblance to M. shai sp. nov., those authors did not provide a detailed description and only illustrated the left valve. Therefore, the relationship between L. setina rectidorsata and M. shai sp. nov. requires further investigation.</p><p>Mongolocypris shai sp. nov. differs from Cypridea (Pseudocypridina) limpida Zhang, 1985 [The subgenus Cypridea (Pseudocypridina) is considered as a synonym of Mongolocypris by Hou et al. (2002)] by having parallel dorsal and ventral margins with a more rounded posterior margin. Mongolocypris yanjiensis Gou, 1983 from the Albian Dalazi Formation of the Yanji Basin is similar to M. shai sp. nov., but the former features a supracurvate posterior margin and more pronounced cardinal angles.</p><p>Distribution. Xiaonangou Formation (this study) and upper part of the Fuxin Formation of western Liaoning (Zhang 1985).</p></div>	https://treatment.plazi.org/id/072187EE7566197447F03DE9FE89C373	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7560197447F03BA6FDAEC47D.text	072187EE7560197447F03BA6FDAEC47D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lycopterocypris Mandelstam 1956	<div><p>Genus Lycopterocypris Mandelstam (in Lübimova, 1956)</p><p>Type species: Cypris faba Egger, 1910</p></div>	https://treatment.plazi.org/id/072187EE7560197447F03BA6FDAEC47D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7560197447F03CF5FAC0C6D5.text	072187EE7560197447F03CF5FAC0C6D5.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Lycopterocypris sinuolata Zhang 1985	<div><p>Lycopterocypris sinuolata Zhang, 1985</p><p>Figs. 2, 3P–R, 4A–F.</p><p>1985 Lycopterocypris sinuolata —Zhang: p. 56, pl. 23, fig. 5a–c.</p><p>Material. More than one hundred carapaces.</p><p>Dimensions. L: 0.65–0.74 mm, H: 0.34–0.40 mm, W: 0.25–0.31 mm.</p><p>Description. Medium to large sized, elongated oval in lateral view. Maximum length at 1/2 of height, maximum height at 2/3 of length, and width at mid-length. LV larger than RV; LV overlapping RV along all margins except for dorsal margin. Anterior margin rounded and equicurvate; anterior cardinal angle rounded. Posterior margin narrower than anterior one and infracurvate; posterior cardinal angle not visible. Dorsal margin arched and gently sloping towards both anterior and posterior margins. Ventral margin nearly straight in LV, but somewhat concave in mid-length of RV. Surface smooth.</p><p>Remarks. The specimens studied can be attributed to L. sinuolata Zhang, 1985 based on general outline and size, LV overlapping RV along the free margin, and the dorsal margin arched with smooth surface. This species differs from L. debilis Lübimova, 1956 by having a more rounded anterior margin and cardinal angle.</p><p>Distribution. Xiaonangou Formation (this study), and upper part of the Jiufotang Formation (Zhang 1985).</p></div>	https://treatment.plazi.org/id/072187EE7560197447F03CF5FAC0C6D5	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7562197647F03B37FDFDC3ED.text	072187EE7562197647F03B37FDFDC3ED.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Candona Baird 1845	<div><p>Genus Candona Baird, 1845</p><p>Type species: Cypris candida Müller, 1776</p></div>	https://treatment.plazi.org/id/072187EE7562197647F03B37FDFDC3ED	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7562197647F03C45FCA5C69D.text	072187EE7562197647F03C45FCA5C69D.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Candona praevara Zhang & Zhang 1982	<div><p>Candona praevara Zhang &amp; Zhang, 1982</p><p>Figs. 2, 4I–R, 5A–B.</p><p>1982 Candona praevara —Zhang &amp; Zhang: p. 365–366, pl. 2, figs. 4–5.</p><p>Material. More than one hundred carapaces.</p><p>Dimensions. L: 0.62–0.68 mm, H: 0.34–0.43 mm, W: 0.24–0.31 mm.</p><p>Description. Medium sized, elongated oval in lateral view. Maximum length at 2/3 of height, maximum height at 3/4 of length, and maximum width slightly behind mid-length. LV larger than RV; LV overlapping RV along all margins, including hinge margin. Anterior margin narrow and slightly supracurvate; anterior cardinal angle rounded. Posterior margin broader than anterior one, strongly infracurvate; posterior cardinal angle more rounded than anterior one. Dorsal margin arched, hinge margin long and gently slopes towards anterior margin but slopes more steeply towards posterior margin. Ventral margin nearly straight in LV, but somewhat concave in mid-length of RV. Surface smooth.</p><p>Remarks. The general morphology of specimens in this study is well matched with Candona praevara with an elongated oval carapace shape, maximum height at 3/4 of length in lateral view, LV overlapping RV along all margins, and a strongly infracurvate posterior margin.</p><p>Distribution. Xiaonangou Formation, upper part of the Fuxin Formation in western Liaoning (Zhang 1985) and Quantou Formation of the Songliao Basin (Zhang 1987).</p></div>	https://treatment.plazi.org/id/072187EE7562197647F03C45FCA5C69D	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE7562197947F03F54FAF4C287.text	072187EE7562197947F03F54FAF4C287.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Candonidae Kaufmann 1900	<div><p>Candonidae gen. indet. sp.</p><p>Figs. 2, 5C–J.</p><p>Material. Ten carapaces. Dimensions. L: 0.40–0.47 mm, H: 0.22–0.28 mm, W: 0.16–0.19 mm.</p><p>Description. Small sized carapace with thin-shelled and a long-oval shape in lateral view. Maximum length at 1/2 of height, maximum height at middle of maximum length, and maximum width at mid-length. LV larger than RV; LV overlapping RV along all margins, with strong valve overlapping in ventral area. Both anterior and posterior margins equicurvate and rounded. Surface smooth.</p><p>Remarks. In China, numerous studies have classified ostracod specimens similar to the specimens of this study, characterized by a small, thin-shelled, long-oval carapace shape, with the LV overlapping RV along all margins and both anterior and posterior margins rounded, under the genus Candoniella Schneider, 1956 (e.g., Zhang 1985, 1987; Ye et al. 2002; see Hou et al. 2002 for a review). However, Danielopol et al. (2022) argue that the genus Candoniella Schneider, 1956 is an invalid genus and that it represents a taxonomic chimera, an artifact in which juveniles of species from different Candoninae genera are amalgamated into a single taxon. It implies that all described Candoniella species require a comprehensive reassessment; to address this problem, more detailed taxonomic work and a wide morphological analysis of all specimens from the genus Candoniella are required, however, is out of our topic of present work. The studied specimens may represent juvenile individuals of a certain Candoninae genus or species. However, due to the limited number of specimens and the lack of evidence for continuous morphological changes during ontogeny, they can only be identified to the family level without determining the genus and species.</p></div>	https://treatment.plazi.org/id/072187EE7562197947F03F54FAF4C287	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE756D197947F03B12FD83C3B1.text	072187EE756D197947F03B12FD83C3B1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cyclocypris Brady & Norman 1889	<div><p>Genus Cyclocypris Brady &amp; Norman, 1889</p><p>Type species: Cypris globosa Sars, 1863</p></div>	https://treatment.plazi.org/id/072187EE756D197947F03B12FD83C3B1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
072187EE756D197947F03BA1FA31C5D1.text	072187EE756D197947F03BA1FA31C5D1.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Cyclocypris invalida Zhang 1985	<div><p>Cyclocypris invalida Zhang, 1985</p><p>Figs. 2, 5K–R.</p><p>1985 Cyclocypris invalida —Zhang: p. 67, pl. 28, figs. 13a–b, 14a–c, 15a–c.</p><p>Material. Sixty-four carapaces, but most of them partially covered with sediment.</p><p>Dimensions. L: 0.34–0.37 mm, H: 0.28–0.34 mm, W: 0.24–0.31 mm.</p><p>Description. Very small sized carapace, short and high when seen laterally, ovate in dorsal view. Maximum length at 1/2 of height, maximum height at 1/2 of length, and maximum width at mid-length. LV larger than RV; LV overlapping RV along all margins. Posterior end broadly rounded, anterior end roundly pointed; both anterior and posterior margins equicurvate. Dorsal margin arched and gently slopes towards both anterior and posterior margins. Ventral margin convex. Surface with very shallow pits.</p><p>Remarks. The studied specimens match perfectly with the description of Cyclocypris invalida Zhang, 1985 . Therefore, they are assigned to the species C. invalida .</p><p>Distribution. Xiaonangou Formation (this study), and lower part of the Sunjiawan Formation (Zhang 1985).</p></div>	https://treatment.plazi.org/id/072187EE756D197947F03BA1FA31C5D1	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Wang, Yaqiong	Wang, Yaqiong (2025): First report of the non-marine ostracod fauna from the Lower Cretaceous Xiaonangou Formation of the Baishan Basin, NE China. Zootaxa 5660 (4): 560-572, DOI: 10.11646/zootaxa.5660.4.6, URL: https://doi.org/10.11646/zootaxa.5660.4.6
