Boueina, F. Toula, 1884

Vachard, D, Krainer, K & Lucas, SG, 2015, Late Early Permian (late Leonardian; Kungurian) algae, microproblematica, and smaller foraminifers from the Yeso Group and San Andres Formation (New Mexico; USA), Palaeontologia Electronica (English ed.) 3 (8), pp. 1-77 : 14

Boueina ? tubulata n. sp.

Figures 10.4-10.6 , 13.3, 13.6, 13.7 , 18.1-18.5

zoobank.org/ 07418D5F-E7B7-4290-A6BF-D446556580E8

v. 2013b Boueina ? sp. 1; Vachard, Krainer and Lucas, p. 348 (no illustration).

Etymology. Latin tubulatus: bearing small tubes.

Holotype. NMMNH P-67503; Figure 10.5 ; sample MLY (2) 6-12.

Paratypes. NMMNH P-67504, 67505; Figure 10.4, 10.6 .

Material. 52 specimens.

Locus Typicus. NMMNH locality 8892, San Andres Formation, McLeod Hills (New Mexico).

Stratum Typicum. Middle? Kungurian (late Leonardian).

Diagnosis. Boueina ? with thin siphons in both medullar and cortical zones.

Description. The thallus is cylindrical and measures: L = 0.86-1.86 mm and w = (rarely 0.34-0.47) 0.72-1.25 mm. Medullar zone with medium-sized, tangled, longitudinal threads exhibiting long segments of tubes with a diameter of (rarely 0.01 mm) 0.02-0.04 mm. Cortical zone with fine (0.01 mm), oblique, and one time branching, radial or oblique threads. The subdermal zone shows some small deltoid terminations, 0.03 mm wide.

Occurrence. Middle? Kungurian (late Leonardian) of New Mexico (San Andres Formation, McLeod Hills (lower part): samples MLY 5-8, MLY 5-10, MLY 5-14, MLY(2) 5-17, MLY(2) 5-19, MLY(2) 5a-2, MLY(2) 5a-9, MLY(2) 5a-20, MLY(2) 5a-26, MLY(2) 6-4, MLY(2) 6-8, MLY(2) 6-12, MLY(2) 6-19a, MLY(2) 6-19b, MLY 6-20)).

Figures

FIGURE 10. 1-3. Ellesmerella rara n. sp. 1. NMMNH P-67501, holotype and microfacies. Yeso Group. Sample MG 13c. 2. NMMNH P-67501, detail of holotype. Yeso Group. Sample MG 13d. 3. NMMNH P-67502, paratype encrusting the concavity of a bivalve shell. Yeso Group. Sample MG 13i. 4-6. Boueina? tubulata n. sp. 4. NMMNH P-67504, paratype. Oblique section with two medullar siphons (left) and numerous cortical siphons. San Andres Fm. Sample MLY(2) 5-17. 5. NMMNH P-67503, holotype. Axial section. San Andres Fm. Sample MLY(2) 6-12. 6. NMMNH P- 67505, paratype. Axial section. San Andres Fm. Sample MLY(2) 6-19b. 7-8. Undetermined Chlorophyta. 7. NMMNH P-67514, subaxial section with possible connections between two orders of siphons or of laterals L1 and L2 (top, right). Yeso Group. Sample MG(2) 12-1. 8. Oblique section with distal parts of siphons or laterals. San Andres Fm. Sample MLY(2) 6-9. 9-10. Gymnocodium? johnsonii n. sp. 9. NMMNH P-67509, holotype. Longitudinal section. Yeso Group. Sample MG(2) 12-4. 10. NMMNH P-67510, paratype. Compressed longitudinal section. Yeso Group. Sample MG(2) 12-12. 11. Gymnocodium? bacillum n. sp. NMMNH P-67513, holotype. Longitudinal section. San Andres Fm. Sample SAR 8a-4.

FIGURE 13. 1, 4-5, 8, 10. Boueina? crassundia n. sp. 1. Tangential section (right) with Gymnocodium? johnsonii n. sp. (left) and crinoids (centre top and bottom). San Andres Fm. Sample MLY 5-26. 4. Oblique subaxial section showing the siphons of the medullar zone. San Andres Fm. Sample MLY 5-6. 5. Oblique section showing the siphons of the medullar zone. San Andres Fm. Sample MLY 5-18. 8. Axial section with cortical and medullar zones. San Andres Fm. Sample MLY 5-8. 10. Axial section with a well-developed medullar zone but a poorly preserved cortical zone. San Andres Fm. Sample MLY 5-20. 2, 9. Undetermined Chlorophyta. 2. Fragment of a longitudinal section and microfacies (bivalve, top left; Palaeonubecularia sp. (top right); Eotuberitina reitlingerae Miklukho-Maklay, 1958 (right, centre); crinoid (bottom left); Boueina? crassundia n. sp. (bottom right)). San Andres Fm. Sample MLY 5-2. 9. Detail of Figure 13.2; with Eotuberitina reitlingerae Miklukho-Maklay, 1958 (top right). San Andres Fm. Sample MLY 5-2a. 3, 6-7. Boueina? tubulata n. sp. 3. Subaxial section showing the ramified siphons of the medullar zone. San Andres Fm. Sample MLY 5-14. 6. Oblique subaxial section showing some ramifications of the siphons of the medullar zone. San Andres Fm. Sample MLY 5-7b. 7. Axial section with typical cortical and medullar siphons. San Andres Fm. Sample MLY 5-10.

FIGURE 18. 1-5. Boueina? tubulata n. sp. 1. Axial section. San Andres Fm. Sample MLY(2) 5a-26. 2. Axial section. San Andres Fm. Sample MLY(2) 5a-9. 3. Subaxial section. San Andres Fm. Sample MLY(2) 5a-2. 4. Oblique section. San Andres Fm. Sample MLY 5-18. 5. Subaxial section. San Andres Fm. Sample MLY(2) 5-19. 6-11. Boueina? crassundia n. sp. 6. Axial section. San Andres Fm. Sample MLY(2) 5-9. 7. Axial section. San Andres Fm. Sample MLY(2) 5-19d. 8. Oblique section. San Andres Fm. Sample MLY(2) 5-11. 9. Oblique subaxial section. San Andres Fm. Sample MLY(2) 5-16. 10. Longitudinal section. San Andres Fm. Sample MLY(2) 5-14. 11. Oblique section (left). San Andres Fm. Sample MLY(2) 5a-12. 11. Gymnocodium? johnsonii n. sp. An axial section through the cortical zone (right). San Andres Fm. Sample MLY(2) 5a-12. 12. Tubiphytes epimonellaeformis n. sp. Specimen similar to Latitubiphytes Vachard, Krainer and Lucas, 2012 exhibiting a neosparitization of Miliolata, especially Hemigordiopsis, Baisalina or Pseudobaisalina (see Gargouri and Vachard, 1988; Vdovenko et al., 1993). San Andres Fm. Sample SAR(2) 12-15.