Vol. 59, 2020

(update: 2020.07.06; 08.05)

Special Issue: Fossil and Modern Clam Shrimp (Branchiopoda: Spinicaudata, Laevicaudata)

New Spinicaudatan Species of Late Jurassic Linglongta Phase of Yanliao Biota from Western Liaoning, China

Gang Li

State Key Laboratory of Palaeobiology and Stratigraphy, Center for Excellence in Life and Palaeoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, East Beijing Road 39, Nanjing 210008, PR China. E-mail: gangli@nigpas.ac.cn

(Received 1 August 2019 / Accepted 7 November 2019)
Special issue (articles 32-46) communicated by Thomas A. Hegna and D. Christopher Rogers

Abundant and diverse spinicaudatans are important components of the well-known Linglongta phase of the Yanliao Biota from the lower Upper Jurassic Tiaojishan Formation at the village Daxishan of Linglongta, Jianchang County, western Liaoning, north-eastern China. Herein a new spinicaudatan species Linglongtaestheria daxishanensis gen. and sp. nov. is described. It shows distinct carapace ornamentation patterns: (1) growth bands near the umbo ornamented with polygonal small-diameter reticulation; (2) growth bands in the middle part of the carapace ornamented with evenly distributed puncta; (3) growth bands in the ventral part of the carapace ornamented with punctate reticulation and radial lirae.nted with evenly distributed puncta; (3) growth bands in the ventral part of the carapace ornamented with punctate reticulation and radial lirae.

Key words: Early Late Jurassic, Clam shrimp, Taxonomy, Linglongta phase, Yanliao Biota.

Citation: Li G. 2020. New spinicaudatan species of late Jurassic Linglongta phase of Yanliao Biota from western Liaoning, China. Zool Stud 59:36. doi:10.6620/ZS.2020.59-36.