Fig. 4 in Chaetognath grasping spines from the Upper Mississippian of Arkansas (USA)
Fig. 4 in Chaetognath grasping spines from the Upper Mississippian of Arkansas (USA)
Fig. 4. Eoserratosagitta serrata gen. et sp. nov., Cove Creek (Arkansas, USA), Middle Chesterian (Namurian A equivalent). A. Three relatively complete paratypes (OUZC 4002/B, C, D from top to bottom, respectively) with nearly identical basic morphology including bands (b) and bulletlike denticles (d), scale bar 1.0 mm. B. Enlargement of the lower right segment of paratype OUZC 4002/B showing the phosphate replaced, fibrous ultrastructure of the spine wall, scale bar 0.1 mm. All SEM micrographs.
Published as part of Doguzhaeva, Larisa A., Mutvei, Harry & Mapes, Royal H., 2002, Chaetognath grasping spines from the Upper Mississippian of Arkansas (USA), pp. 421-430 in Acta Palaeontologica Polonica 47 (3) on page 426, DOI: 10.5281/zenodo.13304973
Eoserratosagitta, Animalia, Chaetognatha, Biodiversity, Taxonomy
Eoserratosagitta, Animalia, Chaetognatha, Biodiversity, Taxonomy
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