| Summary: | Fig. 6. Zoroasterid asteroid Zoroaster marambioensis sp. nov., Eocene, Cucullaea I Allomember, La Meseta Formation of Seymour Island, Antarctica. A. IAA-Pi-373-K, abactinal (A1) and actinal (A2) views of a regenerating arm tip, note the size differences between ossicles and terminal small and inconspicuous. B. IAA-Pi-373-N, abactinal (B1) and actinal (B2) views of arm tip. C. IAA-Pi-373-L, regenerating arm tip on abactinal (C1) and actinal (C2) views, note small ossicles in chaotic arrangement on abactinal side. D. IAA-Pi-373-Q1, transverse section of a partially deformed ray. E. IAA-Pi- 373-Q4, actinal view of a ray on the second third section, note that the third row of actinolaterals is reduced towards the arm tip (arrows). F. IAA-Pi-373-E, close-up of popular pore with small pedicellariae basal plate (arrow). G. IAA-Pi-373-E, small pedicellariae blades (arrow) on associated to a non-carinate adambulacral (arrow). H. IAA-Pi-373-R, inclined views of arms in life position; furrow with two big and three small pedicellariae (arrows) (H1); arm with three big pedicellariae (arrows) (H2). Published as part of Palópolo, Evangelina E., Brezina, Soledad S., Casadio, Silvio, Griffin, Miguel & Santillana, Sergio, 2021, A new zoroasterid asteroid from the Eocene of Seymour Island, Antarctica, pp. 301-318 in Acta Palaeontologica Polonica 66 (2) on page 309, DOI:10.4202/app.00714.2019, http://zenodo.org/record/12196830
|
|---|