Orthovertellopsis calcitornellaeformis, Vachard, Krainer & Lucas, 2015

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 : 42

Orthovertellopsis calcitornellaeformis n. gen. n. sp.

Figures 24.5, 24.6, 24.9, 24.11 , 34.6, 34.10, 34.17 ,

35.6, 35.7, 35.13

zoobank.org/ C5D1A3E1-902B-466E-B8EF-E648998A901E

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

Etymology. Similar to Calcitornella Cushman and Waters, 1928a .

Holotype. NMMNH P-67574; Figure 24.6 ; sample SAR 11-10 .

Paratypes. NMMNH P-67576, 67592-67593; Figure 24.5, 24.9, 24.11 .

Material. 15 specimens.

Locus Typicus. NMMNH locality 8902; San Andres Formation reference section in the San Andres Mountains near Rhodes Canyon (New Mexico).

Stratum Typicum. Late? Kungurian (latest Leonardian).

Diagnosis. Attached porcelaneous, undivided, tubular, thick walled, with internal surface smooth and external surface displaying some acute costae (i.e., apparently transitional between the genera Calcitornella and Hedraites Henbest, 1963 ).

Description. No transverse growth lines but some small, narrow, equilateral costae are sparsely arranged. The irregular initial spiral is followed by an uncoiled tubular last part. Umbilicus not observed. Sutures relatively well marked. Whorls partially involute in some specimens. Lateral sides of spire flat to slightly inflated. Peripheral margin round to slightly angular. Chamber walls relatively thick. Uncoiling in form of a tubular chamber that has a diameter equal to the height of the last planispiral whorl, erected, vertical, tubular, and perpendicular to the axis of coiling. Measurements: D = (rarely 0.35-0.40)-0.52-1.00 mm; w = (rarely 0.15)- 0.34-0.66 mm; p = 0.08-0.17 mm; whorls: 1-3 (rarely 4); h = 0.06-017 mm; s = 0.02-0.04-(rarely 0.06) mm.

Remark. This new species differs from O. proteaeformis n. gen. n. sp. by a more irregular test, some costae and thicker walls.

Occurrence. Middle?-late? Kungurian (late Leonardian) of New Mexico (San Andres Formation, McLeod Hills (MLY) and reference section in the San Andres Mountains (SAR): samples MLY 8-6, SAR 11-7a, SAR(2) 11-10, SAR(2)11-11, SAR 11- 16, SAR 11a-5, SAR 11a-12a, SAR 11a-13, SAR 11a-16, SAR 12-8, SAR 19-1).

Figures

FIGURE 24. 1-4, 7, 10. Olgaorlovella davydovi n. gen. n. sp. 1. NMMNH P-67595, paratype. Axial section. San Andres Fm. Sample SAR 11-15. 2. NMMNH P-67596, paratype. Axial section. San Andres Fm. Sample SAR 11a-7. 3. NMMNH P-67597, paratype. Axial section. San Andres Fm. Sample SAR 11-8. 4. NMMNH P-67598, paratype. Axial section. San Andres Fm. Sample SAR 11-12. 7. NMMNH P-67599, paratype. Subaxial section. San Andres Fm. Sample SAR 11-6b. 10. NMMNH P-67594, holotype. Axial section. San Andres Fm. Sample SAR 11-2. 5-6, 9, 11. Orthovertellopsis calcitornellaeformis n. gen. n. sp. 5. NMMNH P-67575, paratype. Oblique section showing the costae. San Andres Fm. Sample SAR 12-8. 6. NMMNH P-67574, holotype. Transverse section with Olgaorlovella davydovi n. gen. n. sp. San Andres Fm. Sample SAR 11-10. 9. NMMNH P-67592, paratype. Oblique section. San Andres Fm. Sample SAR 11a-13. 11. NMMNH P-67593, paratype. Subaxial section. San Andres Fm. Sample SAR 11-7a. 8, 12. Tubiphytes epimonellaeformis n. sp. 8. Subaxial section. San Andres Fm. Sample SAR 12-1. 12. Subaxial section difficult to distinguish from T. obscurus Maslov, 1956. San Andres Fm. Sample SAR 3-3. Scale bars equal 0.10 mm.

FIGURE 34. 1-5. Hemigordius aff. saranensis Baryshnikov in Baryshnikov, Zolotova and Kosheleva, 1982. 1. Subaxial section. San Andres Fm. Sample SAR 13-5d. 2. Subaxial section. San Andres Fm. Sample SAR 11-5a. 3. Axial section. San Andres Fm. Sample SAR 20-5. 4. Transverse section. San Andres Fm. Sample SAR 11a-12. 5. Subtransverse section. San Andres Fm. Sample SAR 13-11. 6, 10, 17. Orthovertellopsis calcitornellaeformis n. gen. n. sp. 6. Subtransverse section. San Andres Fm. Sample SAR 19-1. 10. Oblique section. San Andres Fm. Sample MLY 8-6. 17. Transverse section. San Andres Fm. Sample SAR(2) 11-10. 7-8. Palaeonubecularia sp. 7. Subtransverse section. San Andres Fm. Sample MLY 5-19. 8. Subtransverse section encrusting a Boueina? crassundia n. sp. San Andres Fm. Sample MLY(2) 5a-19. 9. Pseudospira aff. ishimbaica (Lipina, 1949). Two random sections. San Andres Fm. Sample MLY 6- 23. 11-12. Hemigordellina cf. elegans (Lipina, 1949). 11. Random section. San Andres Fm. Sample SAR 18-3a. 12. Random section. San Andres Fm. Sample SAR 18-3. 13. Ammovertella sp. Transverse section. San Andres Fm. Sample SAR 13-9a. 14. Praeneodiscus convexus n. gen. n. sp. Subaxial section. San Andres Fm. Sample MLY 5-32. 15, 18. Hemigordiellina? aff. simplex (Harlton, 1928). 15. Random section. San Andres Fm. Sample SAR 18-2. 18. Transverse section. San Andres Fm. Sample MLY(2) 4-2. 16. Hemigordellina aff. elegans (Lipina, 1949). Random section. San Andres Fm. Sample SAR 14. 19. Calcitornella cf. elongata Cushman and Waters, 1928a. Subtransverse section. San Andres Fm. Sample MLY(2) 5a-24. Scale bars 1-6, 10-19 equal 0.10 mm.

FIGURE 35. 1-5, 8. Olgaorlovella davydovi n. gen. n. sp. 1. Axial section. San Andres Fm. Sample SAR 11a-11. 2. Axial section. San Andres Fm. Sample SAR 11a-8 (already illustrated in Brose et al., 2013, figure 6. 12). 3. Subaxial section. San Andres Fm. Sample SAR 11a-15. 4. Axial section. San Andres Fm. Sample SAR 11a-14. 5. Axial section. San Andres Fm. Sample SAR 11a-3. 8. Axial section. San Andres Fm. Sample SAR 11-6. 6-7, 13. Orthovertellopsis calcitornellaeformis n. gen. n. sp. 6. Subtransverse section. San Andres Fm. Sample SAR 11a-16. 7. Transverse section. San Andres Fm. Sample SAR 11-16. 13. Oblique section. San Andres Fm. Sample SAR 11a-5. 9, 11, 14. Glomomidiella infrapermica n. sp. 9. Axial section showing the proloculus. San Andres Fm. Sample SAR 11-14. 11. Subtransverse section. Yeso Group. Sample MG(2) 10-7b. 14. Axial section relatively well preserved (dark wall). Yeso Group. Sample MG(2) 12-7. 10, 12. Orthovertellopsis protaeformis n. gen. n. sp. 10. Axial section. Yeso Group. Sample MG(2) 10-14. 12. Subaxial section. Yeso Group. Sample MG(2) 10-6. Scale bars equal 0.10 mm.