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Fig. 4 | Zoological Letters

Fig. 4

From: A new calmanostracan crustacean species from the Cretaceous Yixian Formation and a simple approach for differentiating fossil tadpole shrimps and their relatives

Fig. 4

Morphospace using Burnaby-Back-Projection and its resulting implications: a Morphospace using Burnaby-Size-Correction and PCA, small circles represent included specimens, large circles represent the center calculated for the respective species, ellipses indicate a 75% confidence interval; b Simplified phylogenetic tree of Calmanostraca. Castracollis wilsonae was used to root the tree. Kazacharthra as sister group to Notostraca. A distinction is made between Lepidurus batesoni and Lepidurus s. str. (including all other species of Lepidurus) because the first one does not show a modified and elongated first thoracic appendage in contrast to Lepidurus s. str. and Triops

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Zoological Letters

ISSN: 2056-306X

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