https://www.godwin-geology.net/bio daily 0.75 2025-07-30 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513614622920-W0E7BRIWV20ZDZRAC5J3/DSC_1169.JPG CV https://www.godwin-geology.net/research-projects daily 0.75 2017-12-25 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513659977315-PH5K4WOVEVO088GZ5DUO/Sub-Pryor+Creek+Unconformity+5x10.jpg Research Projects https://www.godwin-geology.net/conodonts daily 0.75 2017-12-19 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197765451-TL7RIXAXJO3RQVJVKX5X/PLATE+3+-+Gnathodus+girtyi+copy.jpg Conodonts PLATE 3: Gnathodus girtyi girtyi https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197801348-BIMLZMYFZV37LGXO8UDS/PLATE+4+-+Gnathodus+pseudosemiglaber+copy.jpg Conodonts PLATE 4: Gnathodus pseudosemiglaber https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513198006590-V9WHONI1ELL8DJYWM7WJ/PLATE+9+-+Hindeodus-Hindeodontoides+copy.jpg Conodonts PLATE 9: Hindeodus cristula (A-D) and Hindeodontoides spiculus (E-G). https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513198073323-AFSD4YJTNA956T4I8YWU/PLATE+10+-+Lochriea+copy.jpg Conodonts PLATE 10: Lochriea homopunctatus (A-I), Lochriea sp. B (J), Lochriea sp. A (K), and Lochriea commutata (L-R) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197731399-FE171BWBD5EMBFYBJ6BD/PLATE+2+-+Gnathodus+bilineatus+copy.jpg Conodonts PLATE 2: Gnathodus bilineatus https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197690692-BO5BPRUCFBEX2S3H0AWQ/PLATE+1+-+Cavusgnathus+copy.jpg Conodonts PLATE 1: Genus Cavusgnathus https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197845144-R50QZ77Q777DZ1DN8XKB/PLATE+5+-+Gnathodus+texanus+copy.jpg Conodonts PLATE 5: Gnatodus texanus https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197959692-WWGCCP3NXFI3ULMHMLV6/PLATE+8+-+Gnathodus+sp.+A+copy.jpg Conodonts PLATE 8: Gnathodus sp. A https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197890772-BAR16XGFTHKRWK4HEUJH/PLATE+6+-+Gnathodus+texanus+PART+2+copy.jpg Conodonts PLATE 6: Gnathodus texanus https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513198121495-C91N53XKFWS8NPTBKZE9/PLATE+11+-+Taphrognathus-Rhachistognathus+copy.jpg Conodonts PLATE 11: Taphrognathus varians (A-F) and Rhachistognathus sp. B cf. R. muricatus (G-Q) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513197933533-3Q66HGEKZDWAVLQMY5J0/PLATE+7+-+Gnathodus+n.+sp.+15+copy.jpg Conodonts PLATE 7: Gnathodus n. sp. 15 aff. punctatus https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513040445244-IG0KTLAM80Q5FC28HN87/stub+12-Row+3_002-scaled+%282%29.jpg Conodonts https://www.godwin-geology.net/publications daily 0.75 2017-12-14 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513616982786-119ZI9MR5LHCZVJ1270U/DSC_0337.JPG Publications https://www.godwin-geology.net/stanleyjackfork-succession-of-oklahoma-and-arkansas daily 0.75 2017-12-12 https://www.godwin-geology.net/conact daily 0.75 2018-06-06 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513092074832-B7HHTGSRPE6TOEX1G780/DSC_0099.JPG Contact https://www.godwin-geology.net/home daily 1.0 2019-11-18 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513103741074-RHOTBHZDKKD2SLARF98E/IMG_1162+-+Cropped.jpg Home Pitkin Limestone https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513367672567-B5NSMJZ4FABX0CCFYXJD/DSC_0007.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513042102430-FXAUFDS3CNIQ7YGUD8AB/IMG_8978.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513367520029-G58Z6GZJGKXF8W4E4L7G/DSC_0101.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513367190211-IVF372A748RXFE3J5I0B/DSC_0038.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513104114915-CMT2A8PDRIHZDU8VCJ3M/Tahlequah+Location+-+Cropped.jpg Home Lower Meramecian Tahlequah Limestone (middle unit) overlying cherty osagean strata an dunderlying shaly limestone of the Mayes Group https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513042070871-NCQDTC3XSPT7K5FEDDFN/IMG_8978.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513042018655-UQ03LKJT9980AFAHAR3C/IMG_8979.JPG Home https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513091505596-TJRUE4SVFJJKG8JQVOM3/IMG_5530.JPG Home https://www.godwin-geology.net/surfacetosubsurface-conodont-biostratigraphy-of-mississippian-rocks-in-oklahoma daily 0.75 2017-12-12 https://www.godwin-geology.net/conodonts-of-the-moorefield-formation-of-arkansas daily 0.75 2017-12-12 https://www.godwin-geology.net/geology-photographs daily 0.75 2018-12-09 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513196528205-C164B7JAGD9KB8WMQF9W/Sub-Pryor+Creek+Unconformity_2.jpg Photographs Contact between the Osagean Reeds Spring Formation of the Boone Group (below) and Uppermost Meramecian Bayou Manard Member of the Pryor Creek Formation (Mayes GrouP) (Above). Total Section is approximately 20 feet thick. Reeds Spring Formation is moderately tripolitic, oil-stained, and mineralized. Unconformity surface (referred to as the "sub-Mayes Unconformity) displays erosional.relief. https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123498039-BO1PNUY99LBDQRNWR79Y/Sub-Ritchey+Unconf+2.jpg Photographs Unconformity between the Osagean Short Creek Oolite (below) and the Meramecian Ritchey Formation ("Fairland Facies") (Above), both of the Boone Group (Fairland Quarry, Ottawa County, Oklahoma https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513196218752-2GUJQARHIE1FBDV5EWTQ/IMG_2716.JPG Photographs Moccasin Bend Formation (Meramecian; Visean) (Devil's Promenade - Ottawa County, Oklahoma) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513196301002-7S7XHKZ5H03IJOUQ8XXC/DSC_0015.JPG Photographs Black vitreous chert in the Bayou Manard Member (uppermost Meramecian) of the Pryor Creek Formation (Mayes Group) (Bedding Plane View), (Low Water Dam Locality, Ordnance Plant Member Type Locality), Mayes County, Oklahoma) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123203162-MO3T85QY8EHPEZHBAVRC/DSC_0261+-+Auto+Enhance.jpg Photographs Contact between the Lindsey Bridge Member (below) and Ordnance Plant Member (above) of the Pryor Creek Formation of the Mayes Group (Chesterian) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123649101-WJKEKQCYSCRG26WWVXDQ/DSC_0569.JPG Photographs Hindsville Formaiton capped by the Fayetteville Shale at the very top (hard to see), both are Chesterian in age, but occupy different conodont zones. (Spring Valley Locality, U.S. Highway 412 East of Springdale, Arkansas. https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123776550-51130YQ2U30VQACXOF2I/Sycamore+Creek+-+Unconformities.jpg Photographs two unconformities. One between the Short Creek Oolite (below rock hammer) and the Ritchey Formation represented by light-colored chert in middle of photo. Second is between the Moccasin Bend Formation and Ritchey Formation. https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123118364-9I62SMM2MUEXPKVL1GVO/Pryor+Quarry+North+High-Wall+-+Cropped.jpg Photographs Mayes Group (Uppermost Meramecian and Chesterian; Visean) (Pryor Creek Formation Type Locality, Pryor Quarry, Mayes County, Oklahoma). https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513367786768-250P4XVC2384FEWWAIEG/DSC_0196.JPG Photographs "Fairland Facies" of the Ritchey FormatioN (Boone Group; Meramecian; Visean) (Fairland Quarry, Ottawa County, Oklahoma). Top of the "Fairland Facies" coincides with the iron-staining in the upper left-hand corner of the photo. Short Creek Oolite is the light pink zone in the lower part of the photo. https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513123942306-80XE91PP1XGZ625VP86V/DSC_0001.JPG Photographs https://www.godwin-geology.net/dissertation daily 0.75 2017-12-18 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513190803938-HMJZE2B67Z0I1MXJ4M23/REGIONAL+MAP+-+For+Figure+1+Chapter+1+v.2.jpg Dissertation Study Area and Locations https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513190826868-754BTQ1IRYT8A7YLEV0E/Figure+2+-+Lithostratigraphic+Nomenclature+v.3+History+-+TEXT+OUTLINE.jpg Dissertation Lithostratigraphic Nomenclature https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513189708616-WVGS8JI8GWQUMM57T0FZ/PLATE+1+-+Chapter+3+Conodonts+v.3.jpg Dissertation Conodonts from Chapter 3: (A) Gnathodus sp. A, (B) G. pseudosemiglaber, (C) Gnathodus n. sp. 15 aff. punctatus (Boardman et al., 2013), (D) Taphrognathus varians, (E) G. girtyi girtyi, (F) Hindeodus cristula, (G) Hindeodontoides spiculus, (H) Cavusgnathus unicornis, (I to L) Rhachistognathus sp. B CF muricatus, (M) Lochriea homopunctatus, (N) L. commutatus, (O) Lochriea sp. A, (P) Lochriea sp. B, (Q) G. bilineatus morphotype 2, (R) G. bilineatus morphotype 1. (Scale Bar 500 microns) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513189229416-UQTUUMTVWUIS35510A4B/Figure+7+-+Conodont+Zonation+-+Text+Outline.jpg Dissertation Conodont Zonations (from Chapter 3) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513189481307-VBZG1WVVXO5OR6O1657Z/Figure+12+-+Mayes+Group+Cycles+-+BW+v.6+-+shallowing+5thorder+cycles.jpg Dissertation Mayes Group Cyclicity (from Chapter 4) https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513128166684-HLTMDHG3K7AZ6GVFNZ21/DSC_0102.JPG Dissertation https://www.godwin-geology.net/other-conodont-workers daily 0.75 2017-12-30 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513437704403-4BLOAARWK6XBHPYFAMRJ/IMG_1322.JPG Links https://www.godwin-geology.net/stratigraphy daily 0.75 2017-12-18 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513553655313-HJY2K4IAS96ITD05JKCN/IMG_8959.JPG Biostratigraphy https://www.godwin-geology.net/conodonts-1 daily 0.75 2017-12-18 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513614757538-L0PG3IR7I2G4RCOLFZTF/stub+12-Row+3_002-scaled+%282%29.jpg Conodonts - An Overview https://www.godwin-geology.net/bibliography daily 0.75 2017-12-19 https://images.squarespace-cdn.com/content/v1/5a2f275df09ca47f0e889b9a/1513632174009-0IFPAWEM0WUGEVS96BV5/DSC_0051.JPG Bibliography https://www.godwin-geology.net/caney-shale-and-sycamore-limestone-of-southern-oklahoma daily 0.75 2017-12-19 https://www.godwin-geology.net/contract-geo-editing daily 0.75 2018-04-17