EDUCATION

Ph.D. Geology (2017) - Oklahoma State University

Dissertation: "Lithostratigraphy and conodont biostratigraphy of the upper Boone Group and Mayes Group in the southwestern Ozarks of Oklahoma, Missouri, Kansas, and Arkansas" (Advisors: Dr. Darwin R. Boardman II, deceased; Dr. James O. Puckette)

M.S. Geology (2004) - Oklahoma State University

Thesis: "Electrofacies, depositional environments, and petroleum geology of the Hartshorne Formation in parts of Hughes and Pittsburg counties, Oklahoma" (Advisor: Dr. James O. Puckette)

B.S. Geology (1997) - Oklahoma State University

RESEARCH INTERESTS

My research interests can best be summed up as "all things stratigraphic".  Specific interests include: conodont biostratigraphy and taxonomy (also interested in integrating forams, ammonoid, and other paleontological and biostratigraphic data), regional and global chronostratigraphy, carbonate and siliciclastic sedimentolgy, ichnology, geology of North America (with an emphasis on the Midcontinent and Rocky Mountain regions), diversity in science, science education. 

Prior to returning to school for my doctorate, I spent 9 years in the petroleum industry where I primarily worked Jurassic and Cretaceous strata of North Louisiana and East Texas. I also have some experience working the New Albany Shale in Indiana, Illinois, and Kentucky. In addition I have minor experience working the subsurface of Oklahoma, South Texas, and the Permian Basin of West Texas.

PROFESSIONAL EXPERIENCE

Jan 2018 to Present - Consulting Geologist for the American Association of Petroleum Geologists (AAPG) providing technical editing for the AAPG Bulletin.

Jan 2009 to Present - Consulting Geologist (Tulsa, Oklahoma): Consulting has ranged from working on correlations in East Texas-North Louisiana salt basins and the Anadarko Basin of Oklahoma.

• Currently serving as a technical editing consultant with the American Association of Petroleum Geologists (AAPG) - reviewing articles for the AAPG Bulletin, post peer-review, for technical accuracy and consistency

• Geological consulting is focused on time-constrained correlations (conodonts) in Mississippian strata of Oklahoma, including outcrop-based field trips for industry in northeastern Oklahoma, southwestern Missouri, and northwestern Arkansas.

Jun 2009 to Dec 2012 - Graduate Teaching/Research Assistant, Oklahoma State University (Stillwater, Oklahoma): Taught intro geology labs. Also taught labs for upper-division courses, including Stratigraphy-Sedimentology and Petroleum Geology for Engineers.

Nov 2007 to Nov 2008 - Geologist, Questar Exploration & Production Company (now QEP Resources) (Tulsa, Oklahoma): Prospected for potential drilling opportunities in the Jurassic (Smackover Formation, including Gray Sand; Haynesville Shale; Bossier Sandstone; Cotton Valley Formation) and Cretaceous (Hosston Formation; Pettet Limestone; Rodessa Limestone; James Limestone; Glen Rose Formation) strata in North Louisiana and East Texas Salt Basin. 

May 2007 to Nov 2008 - Geologist, Apache Corporation (Tulsa, Oklahoma): Evaluated operated and non-operated drilling opportunities in East Texas and North Louisiana. 

Aug 2004 to May 2007 - Associate Geologist, Samson Resources (Tulsa, Oklahoma): Responsible for geologic aspects of Cotton Valley and Hosston drilling activity in parts of North Louisiana; proposed possible drilling locations on operated properties and evaluated proposed drilling on non-operated properties. Spent last year working the New Albany Shale (Devonian) in the Illinois Basin. 

Sep 2000 to Aug 2004 - Associate Geologist, Questar Exploration & Production Company (now QEP Resources) (Tulsa, Oklahoma): Started as a contract geotechnician (offered to work for free during $2.50 gas, but they payed me anyway) supporting senior geologist, but later promoted to Associate Geologist. Responsible for monitoring drilling operations from a geologic perspective in Cotton Valley and Hosston/Travis Peak formations in East Texas-North Louisiana.

Jan 1999 to May 2000 - Graduate Teaching Assistant, Baylor University (Waco, Texas): Taught intro geology labs.

Sep 1998 to Dec 1998 - Graduate Teaching Assistant, University of Tennessee (Knoxville, Tennessee): Taught intro geology lab and graded exams.

Jan 1998 to Jun 1998 - Graduate Teaching Assistant, Oklahoma State University (Stillwater, Oklahoma): Taught intro geology labs and three weeks of OSU Geology Field Camp. 

PUBLICATIONS

Godwin, C.J., D.R. Boardman II, and J.O. Puckette, 2020, Meramecian-Chesterian (Upper Viséan) outcrop-based conodont biostratigraphy and revised lithostratigraphy along the southwestern flank of the Ozark uplift, southern mid-continent, U.S.A., in G.M. Grammer, J.M. Gregg, J.O. Puckette, P. Jaiswal, S.J. Mazzullo, M.J. Pranter, and R.H. Goldstein, eds., Mississippian Reservoirs of the Midcontinent: AAPG Memoir 122, p. TBD

Godwin, C.J. and J.O. Puckette, 2020, Depositional cyclicity within the Mayes Group (Meramecian-Chesterian) along the western edge of the Mississippian outcrop belt in northeastern Oklahoma, in G.M. Grammer, J.M. Gregg, J.O. Puckette, P. Jaiswal, S.J. Mazzullo, M.J. Pranter, and R.H. Goldstein, eds., Mississippian Reservoirs of the Midcontinent: AAPG Memoir 122, p. TBD

Mazzullo, S.J., B.W. Wilhite, D.R. Boardman, B.T. Morris, C.J. Godwin, 2020, Lithostratigraphy, biostratigraphy, stratigraphic architecture, and depositional systems in Lower to Middle Mississippian strata on the western flank of the Ozark Dome, Midcontinent, USA, in G.M. Grammer, J.M. Gregg, J.O. Puckette, P. Jaiswal, S.J. Mazzullo, M.J. Pranter, and R.H. Goldstein, eds., Mississippian Reservoirs of the Midcontinent: AAPG Memoir 122, p. TBD

Miller, J.D., J.O. Puckette, and C.J. Godwin, 2020, Conodont biostratigraphy-constrained diachronous lithofacies, Boone Group (upper Osagean to lower Meramecian), western Ozarks: breakdown of lithostratigraphic correlations at the regional scale, in Grammer, G.M (ed.), Mississippian Reservoirs of the Mid-Continent: Upcoming AAPG Memoir 122, p. TBD

Mazzullo, S.J., B.W. Wilhite, D.R. Boardman II, B.T. Morris, and C.J. Godwin, 2016, Stratigraphic architecture and petroleum reservoir in Lower to Middle Mississippian strata (Kinderhookian to basal Meramecian) in subsurface central to southern Kansas and northern Oklahoma: Shale Shaker, v. 67, no. 2, p. 20-49.

Boardman II, D.R., T.L. Thompson, C.J. Godwin, S.J. Mazzullo, B.W. Wilhite, and B.T. Morris, 2013, High-resolution conodont zonation for Kinderhookian (middle Tournaisian) and Osagean (upper Tournaisian-lower Viséan) strata of the western edge of the Ozark Plateau, North America: Shale Shaker, v. 64, p. 98-151.

Mazzullo, S.J., D.R. Boardman II, B.W. Wilhite, C.J. Godwin, and B.T. Morris, 2013, Revisions of outcrop lithostratigraphic nomenclature in the Lower to Middle Mississippian Subsystem (Kinderhookian to basal Meramecian Series) along the shelf-edge in southwest Missouri, northwest Arkansas, and northeast Oklahoma: Shale Shaker, May/June, p. 414-454.

ABSTRACTS AND PRESENTATIONS

Godwin, C.J. and J.O. Puckette, 2017, Outcrop-based conodont biostratigraphy of Meramecian-Chesterian rocks in Oklahoma: AAPG Midcontinent section meeting, abstracts with program, p. 64. 

Godwin, C.J. and J.O. Puckette, 2015, Type Mayes Group of northeastern Oklahoma: conodont biostratigraphy and revised stratigraphic framework: AAPG Midcontinent section meeting, abstracts with programs, p. 49.

Godwin, C.J. and D.R. Boardman II, 2014, Revised Meramecian (Lower Visean) stratigraphy of the Tri-State District of Oklahoma, Missouri, and Kansas: GSA South-Central Section Meeting (March 17-18), Fayetteville, Arkansas, abstracts with program

Boardman II, D.R., C.J. Godwin, and T.L. Thompson, 2014, High-resolution conodont biostratigraphy of the Lower Mississippian (Middle Tournaisian, Upper Tournaisian)-Middle Mississippian (Lower to Middle Visean) strata of the western flank of the Ozarks: GSA South-Central Section Meeting (March 17-18), Fayetteville, Arkansas, abstracts with program 

Godwin, C.J., D.R. Boardman, S.J. Mazzullo, B.W. Wilhite, J.O. Puckette and G.M. Grammer, 2013, Shallow subsurface occurrence of oil-bearing zones in Middle Mississippian strata of northeastern Oklahoma: An analog for the distribution of reservoir facies and hydrocarbon traps: AAPG Mid-Continent Section, Program with Abstracts, p. 39.

Godwin, C. J., D.R. Boardman, S.J. Mazzullo, B.W. Wilhite, J.O. Puckette and G.M. Grammer, 2013, Middle Mississippian stratigraphic architecture along the western edge of the outcrop belt in northeastern Oklahoma – analogs for the distribution of reservoir facies and trapping mechanisms in the subsurface: AAPG Mid-Continent Section, Program with Abstracts, p. 39.

Boardman, D. R., C.J. Godwin, J.O. Puckette and M. Unrast, 2012, Reservoir distribution and characterization of Mid-Continent Carboniferous (Mississippian) limestones – a major unconventional resource play in southern North America:  Proceedings of the International Seminar on Lithofacies, Paleography and Hydrocarbon Accumulations in Carbonates: Chinese University of Petroleum (East China) Qingdao, Qingdao, China (printed in Chinese)

Godwin, C. J., Boardman, D., Mazzullo, S. J., B.W. Wilhite, and J.O. Puckette, 2011, Review of the Mayes Group (Mississippian) of Oklahoma – lithostratigraphy and biostratigraphy: Program with Abstracts, Mid-Continent Section of AAPG, p. 64.

Godwin, C.J. and D.R. Boardman, 2011, Resolving Meramecian and Early Chesterian (Middle Mississippian-Upper Mississippian) stratigraphic nomenclature in the southern Ozark region. Program with Abstracts, Mid-Continent Section of AAPG, p. 64.

Bryan, M., D.R. Boardman, S.J. Mazzullo, B.W. Wilhite, and C.J. Godwin, 2011, Depositional and chronostratigraphic relationships of the Lower Mississippian (Osagean) Reeds Spring Formation: Program with Abstracts, Mid-Continent Section of AAPG, p. 65.

Boardman, D.R., S.J. Mazzullo, B.W. Wilhite, C.J. Godwin, and M. Bryan, 2011, Lower Mississippian Burlington Shelf derived diachronous prograding carbonate wedges, the western flanks of the Ozarks: Program with Abstracts, Mid-Continent Section of AAPG, p. 63.

Puckette, J.O., C.J. Godwin, and R. Siddique, 2011, Paleozoic sequence boundaries and petroleum accumulations in Oklahoma: Program with Abstracts, Mid-Continent Section of AAPG, p. 74.

Godwin, C.J., D.R. Boardman II, S.J. Mazzullo, B.W. Wilhite, 2010, Review of the Upper Mississippian Mayes Group (Meramecian and Chesterian) of northeastern Oklahoma: GSA North-Central and South-Central Joint Section Meeting, Branson, Missouri, April 11-13, abstract with program.

Godwin, C.J., D.R. Boardman II, S.J. Mazzullo, and B.W. Wilhite, 2010, Lithostratigraphy and conodont biostratigraphy of the Upper Mississippian Tahlequah Member, Moorefield Formation based on the type locality: GSA North-Central and South-Central Joint Section Meeting, Branson, Missouri, April 11-13, abstract with program.

FIELD TRIP GUIDEBOOKS

Godwin, C.J., J.O. Puckette, J. Bynum, C. Wethington, and B. Stuekey, 2019, Meramecian to middle Chesterian (Visean) rocks of northeastern Oklahoma: Outcrop-based conodont biostratigraphy and regional stratigraphic framework. A field trip and core workshop for the 2019 AAPG Mid-Continent Section Meeting, Wichita Kansas. 64 p.

Mazzullo, S.J., B.W. Wilhite, D.R. Boardman II, B. Morris, R. Turner, and C. Godwin, 2010, Kinderhookian to Osagean Series in southwest Missouri, northwest Arkansas, and northeast Oklahoma: Field trip guidebook, Kansas Geological Society, Wichita, Kansas, 46 p.

Mazzullo, S.J., B.W. Wilhite, D.R. Boardman II, B. Morris, R. Turner, and C. Godwin, 2011, Mississippian outcrop lithostratigraphy and depositional architecture as models for subsurface petroleum exploration: Field trip guidebook, Oklahoma City Geological Society.

2014 to 2016 - Co-leader for field trips concerning the Mississippian section of Oklahoma conducted for independent energy companies in Oklahoma