Pennsylvanian Brachiopods and Biostratigraphy in Southern Sangre de Cristo Mountains, New Mexico DALTON BLUFF—The most important Pennsylvanian stratigraphic sequence in the Sangre de Cristo area (measured section 36). Memoir 27 New Mexico Bureau of Mines & Mineral Resources A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Pennsylvanian Brachiopods and Biostratigraphy in Southern Sangre de Cristo Mountains, New Mexico by Patrick K. Sutherland and Francis H. Harlow SOCORRO 1973 Contents Page Page vii LIST OF ILLUSTRATIONS 34 Leptalosia sp. 35 Krotovia globosa (Mather) ix ABSTRACT 35 Kozlowskia montgomeryi n. sp. 36 Kozlowskia haydenensis (Girty) 1 INTRODUCTION 37 Desmoinesia nambeensis n. sp. 1 Scope of Investigation 38 Desmoinesia sp. A 1 Marcou's 1853 Survey 38 Desmoinesia ingrata (Girty) 2 Pecos Village 39 Desmoinesia "missouriensis" (Girty) 3 Tigeras Canon 40 Desmoinesia muricatina (Dunbar and Condra) 4 Early Surveys in Santa Fe Area 41 Sandia brevis n. sp. 5 Acknowledgments 44 Sandia santafeensis n. sp. 44 Sandia welleri (Mather) 6 STRATIGRAPHY 45 Sandia welleri variant A 6 Introduction 46 Calliprotonia n. sp. A 6 La Pasada Formation 46 Echinaria n. sp. A 7 Flechado Formation 47 Echinaria cf. E. knighti (Dunbar and Condra) 8 Alamitos Formation 47 Echinaria cf. E. semipunctata (Shepard) 9 Sangre de Cristo Formation 47 Pulchratia? pustulosa n. sp. 48 Pulchratia? picuris n. sp. 10 FAUNAL EVALUATION 49 Buxtonia grandis n. sp. 10 Introduction 49 Buxtonia n. sp. A 10 Fusulinid Occurrences 50 Buxtonia n. sp. B 11 Conodont Occurrences 50 Buxtonia? sp. C 11 Brachiopod Correlations 51 Antiquatonia coloradoensis (Girty) 12 Morrowan 51 Antiquatonia hermosana (Girty) 12 Atokan 52 Antiquatonia portlockiana (Norwood and 12 Lower Desmoinesian Pratten) 13 Middle and Upper Desmoinesian 52 Antiquatonia n. sp. A 13 Missourian 53 Tesuquea formosa n. sp. 13 Virgilian 55 Reticulatia sp. A 55 Horridonia? daltonensis n. sp. 14 SYSTEMATIC DESCRIPTIONS OF 56 Linoproductus nodosus (Newberry) BRACHIOPODS 5 7 Linoproductus devargasi n. sp. 14 Introduction 58 Linoproductus planiventralis Hoare 14 Statistical Procedures 58 Linoproductus cf. L. platyumbonus Dunbar 15 Descriptions and Condra 15 Lingula cf. L. carbonaria Shumard 59 Linoproductus pumilus n. sp. 15 Lingula sp. A 60 Zia novamexicana n. sp. 15 "Orbiculoidea" youngi n. sp. 60 Leiorhynchoidea? rockymontana (Marcou) 16 "Orbiculoidea" sp. 61 Wellerella immatura Dunbar and Condra 16 Crania cf. C. modesta White and St. John 61 Rhynchopora magnicosta Mather 16 Schizophoria oklahomae Dunbar and Condra 62 Hustedia gibbosa? Lane 17 Schizophoria altirostris? (Mather) 63 Hustedia "mormoni " (Marcou) 18 Rhipidomella cf. R. carbonaria (Swallow) 64 Composita gibbosa Mather 18 Rhipidomella trapezoida n. sp. 64 Composita deflecta Mather 19 Isogramma sp. 64 Composita "ovata" Mather 19 Meekella n. sp. A 67 Composita umbonata n. sp. 20 Meekella cf. M. striatocostata (Cox) 67 Cleiothyridina pecosii (Marcou) 20 Orthotetes sp. 68 Cleiothyridina milleri n. sp. 20 Derbyia Bonita n. sp. 69 Crurithyris planoconvexa (Shumard) 21 Derbyia crassa (Meek and Hayden) 70 Spirifer goreii Mather 21 Derbyia cf. D. haesitans Dunbar and Condra 72 Neospirifer cameratus (Morton) 22 Plicochonetes? arkansanus (Mather) 74 Neospirifer tewaensis n. sp. 23 Neochonetes? platynotus (White) 75 Neospirifer alatus Dunbar and Condra 25 Neochonetes n. sp. A 76 Neospirifer dunbari? King 26 Neochonetes henryi n. sp. 78 Anthracospirifer newberryi n. sp. 27 Neochonetes whitei n. sp. 79 Anthracospirifer curvilateralis (Easton) 30 Mesolobus striatus Weller and McGehee 80 Anthracospirifer curvilateralis tanoensis 32 Mesolobus profundus n. sp. n. subsp. 33 Mesolobus euampygus (Girty) 82 Anthracospirifer curvilateralis chavezae 34 Chonetinella jeffordsi Stevens n. subsp. v Page Page 84 Anthracospirifer mcalesteri n. sp. 115 Section 42—Elk Mountain 85 Anthracospirifer "occiduus" (Sadlick) 115 Locality 43—Nambe Falls—Desmoinesian 85 Anthracospirifer "opimus" (Hall) 116 Section 47—Divide at Head of Rio Valdez 86 Anthracospirifer rockymontanus (Marcou) 118 Locality 51—Hyde Park Road 86 Anthracospirifer matheri (Dunbar and Condra) 118 Locality 56—Rio Pueblo—West 87 Spiriferellina campestris (White) 118 Section 60—Rio Pueblo Valley* 87 Spiriferellina ceres n. sp. 118 Section 61—Santa Fe Quarries 88 Punctospirifer morrowensis n. sp. 121 Section 62—Santa Fe Quarries 88 Punctospirifer cf. P. kentuckyensis (Shumard) 122 Locality 64—Santa Fe Quarries—North 88 Phricodothyris perplexa (McChesney) 122 Section 65 —South of Talpa 89 Beecheria millepunctata (Hall) 124 Section 67—Taos Canyon 89 Beecheria daltonensis n. sp. 127 Locality 68—Santa Fe Quarries—South 90 Beecheria stehlii n. sp. 127 Locality 78—Nambe Reservation 90 Beecheria gerberi n. sp. 128 Section 90—Santa Fe River, Cerro Gordo Road 129 Section 92—Bishop's Lodge 91 REFERENCES 130 Section 93—Lamy 132 Section 96—Alamitos Valley* 94 APPENDIX 1—Measured Sections and Collecting 132 Section 97—West of Pecos Valley* Localities (*denotes faunal list) 132 Section 98—Pecos (town) River Bluff 94 Section 10—Ridge Northeast of East Pecos Baldy 133 Locality 99—Near Rio En Medio 96 Locality 12—Trailriders Wall 133 Locality 105—South of Dalton Bluff 96 Locality 18—Windsor Creek 97 Section 22—Terrero Bluff, Pecos Valley 134 APPENDIX 2—Tables of Statistics 99 Section 25—Santa Barbara Valley 102 Section 26—Jicarita Peak 134 APPENDIX 3—Specimen Measurements 104 Section 29—Dalton Canyon 105 Section 36—Dalton Bluff* 135 FOSSIL PLATES 1-18 106 Section 40—Ridge East of Jicarilla Peak 109 Section 41—Nambe Falls 172 INDEX List Of Illustrations FIGURES Page Page 71 34—Lateral bifurcation patterns for Spirifer goreii 1 1—Table of stratigraphic sequence 73 35—Sulcal bifurcation patterns for Neospirifer cam- x 2—Index and locality map eratus 2 3—Map of Pecos (town) area (Marcou, 1858) 74 36—Lateral bifurcation patterns for Neospirifer cam- 2 4—Locality and geologic map, Pecos (town) area eratus 4 5—Sketch of bluff at Marcou's camp 16 75 37—Sulcal bifurcation patterns for Neospirifer tewa- 4 6—Map of area near "Tigeras village" (Marcou, ensis 1858) 76 38—Sulcal bifurcation patterns for Neospirifer alatus 7 7—Correlation of lower and middle Pennsylvanian 76 39—Lateral bifurcation patterns for Neospirifer alatus sections, Santa Fe to Pecos valley 77 40—Sulcal and lateral bifurcation patterns for Neo- Pocket 8—Correlation of fossiliferous units spirifer dunbari? Pocket 9—Brachiopod range chart 78 41—Plots of width vs length and thickness vs length 15 10—Cross section of "Orbiculoidea " youngi for Anthracospirifer newberryi and subspecies 24 11—Plot of width vs length for Neochonetes? platy- of A. curvilateralis notus 79 42—Sulcal and lateral bifurcation patterns for An- 26 12—Scatter diagram of width vs length for Neo thracospirifer newberryi chonetes henryi and N. whitei 80 43—Sulcal and lateral bifurcation patterns in Anthra 27 13—Frequency histogram of number of capillae for cospirifer curvilateralis tanoensis Neochonetes henryi and N. whitei 81 44—Evolution of Anthracospirifer curvilateralis tano- 30 14—Scatter diagram of width vs length for Mesolobus ensis and A. curvilateralis chavezae striatus 82 45—Sulcal and lateral bifurcation patterns of Anthra- 31 15—Frequency histogram of number of capillae for cospirifer curvilateralis chavezae Mesolobus striatus 83 46—Sulcal and lateral bifurcation patterns of Anthra- 32 16—Scatter diagram for width vs length and height vs cospirifer cf. A. curvilateralis chavezae length for Mesolobus profundus 84 47—Sulcal bifurcation patterns of Anthracospirifer- 33 17—Plot of width vs length and height vs length for mcalesteri Mesolobus euampygus 85 48—Lateral bifurcation patterns in Anthracospirifer- 35 18—Frequency plot of number of costellae for Koz mcalesteri lowskia montgomeryi and K. haydenensis 86 49—Sulcal and lateral bifurcation patterns for the lec- 36 19—Drawing along plane of symmetry of Kozlowskia totype of Anthracospirifer rockymontanus montgomeryi 112 50—Geologic and locality map of Nambe Falls area 37 20—Drawing along plane of symmetry of Kozlowskia 119 51—Geologic and locality man of Santa Fe Ouarries haydenensis 37 21—Frequency plots comparing species of the genus Desmoinesia PHOTOGRAPHS 42 22—Frequency plots comparing Sandia santafeensis and S. brevis ii frontis—Dalton Bluff 43 23—Scatter diagrams comparing Sandia santafeensis 3 2—Marcou's "grand perpendicular wall" and S. brevis 3 3—Marcou's "grand perpendicular wall" (close-up) 50 24—Frequency polygons comparing number of costae 4 4—Santa Fe Quarries for species of Antiquatonia 7 5—La Pasada Formation northeast of East Pecos 54 25—Drawing along plane of symmetry of Tesuquea Baldy formosa 8 6—Flechado Formation, Rio Pueblo valley 62 26—Plots of width vs length and thickness vs length 8 7—Alamitos Formation, Alamitos valley for species of Hustedia 8 8—Cross-bedding in Alamitos Formation 62 27—Frequency plot showing the number of costellae 94 9—Measured section 10 from north for species of Hustedia 97 10—Terrero Bluff, measured section 22 65 28—Plots of width vs length, and thickness vs length 100 11—Alamitos Formation, Santa Barbara valley for Composita gibbosa and Composita deflecta 103 12—Jicarita Peak 66 29—Plot of width vs length for Composita "ovata" and 104 13—La Pasada Formation, Dalton Canyon Composita "subtilita" 106 14—Highly fossiliferous 4th Cliff at Dalton Bluff 68 30—Plots of width vs length and thickness vs length 106 15—Algal limestone forming 3rd Cliff at Dalton Bluff for species of Cleiothyridina 107 16—Measured