《Brachiopoda of the Pennsylvanian System in Nebraska》求取 ⇩

Board of Regents1

Table of Contents5

Preface7

Introduction11

Field Work and Collections11

Scope of the Report12

Deposition of Types13

Acknowledgments13

Stratigraphic Summary15

Table A.—Lansing-Kansas City Section in the vicinity of Kansas City17

Table B.—Lansing-Kansas City Section of the Platte Valley18

Table C.—Pennsylvanian Formations of the Northern Mid-Con-tinent Region19

Faunal Summary20

Brachiopod Faunal Zones20

Detailed Correlation with Long-Ranging Species26

Species of Geographically Restricted Range29

Table D.—Range and Distribution of Species28

Order Atremata31

Family Lingulid?31

Order Neotremata41

Family Discinid?41

Family Craniid?50

Order Protremata52

Superfamily Orthacea52

Family Rhipidomellid?52

Family Schizophoriid?54

Superfamily Strophomenacea66

Family Strophomenid?66

Subfamily Orthotetin?66

Key to the Carboniferous Genera of the Orthotetin?72

Figure 1.—Orthotetinoid cardinal area67

Figure 2.—Phylogeny of the Orthotetin?72

Figure 3.—Cardinal process of Derbya crassa81

Family Chonetid?133

Artificial Key to the Genera of Chonetid?134

Figure 4.—Structure of the chonetid shell135

Figure 5.—Cardinal spines of Chonetes granulifer139

Figure 6.—Chonetina artiensis (Krotow)148

Figure 7.—Cardinal spines in Chonetina verneuiliana159

Family Productid?175

Shell Morphology and Terminology176

Figure 8.—Productid shell profiles (after Fredericks)177

Figure 9.—Longitudinal profile of Productus productus178

Figure 10.—Longitudinal section of a spine base of Echinoconchus sp.179

Figure 11.—Productid spine bases180

Principles of Generic Classification184

List of Productid Genera188

Key to the Genera of the Productid?190

Productid Species Inadequately Established264

Family Oldhaminid?270

Figure 12.—Fredericks' Hypothesis of the Phylogeny of the Leptodid?271

Figure 13.—Poikilosakos petaloides Watson274

Family Richthofeniid?275

Figure 14.—Teguliferina armata (Girty)278

Family Isogrammid?280

Order Telotremata285

Superfamily Rhynchonellacea285

Family Camarot?chiid?285

Figure 15.—Wellerella osagensis (Swallow)288

Figure 16.—Wellerella tetrahedra Dunbar and Condra291

Figure 17.—WeIlerella delicatula Dunbar and Condra293

Superfamily Terebratulacea295

Family Centronellid?？295

Figure 18.—Rhynchopora magnicosta Mather301

Family Dielasmatid?303

Figure 19.—Dielasma bovidens (Morton)305

Figure 20.—Cryptacanthia compacta (White and St.John)308

Figure 21.—The loop of Cryptacanthia compacts (White and St. John)309

Superfamily Spiriferacea311

Family Spiriferid?311

Subfamily Reticulariin?311

Figure 22.—A, Surface features of Squamularia perplexa; B, Section of same314

Figure 23.—Squamularia perplexa (McChesney)315

Subfamily Spiriferin?317

Subfamily Martiniin?343

Family Spiriferinid?350

Subfamily Spiriferinin?350

Figure 24.—Punctospirifer kentuckyensis (Shumard)353

Superfamily Rostrospiracea355

Family Rhynchospirinid?355

Figure 25.—Hustedia mormoni (Marcou)357

Family Athyrid?359

Subfamily Athyrin?359

Bibliography374