BULLETINS ^ ^J^y^ MUS COMP ZOoL LIBRARY OF MAR HAi *97^ -AMERICAN UNJVERi^ PALEONTOLOGY VOL LXIV 1973-74 Paleontological Research Institution Ithaca, New York U S A 14850 In Memoriam Orville L Bandy 1916-1973 CONTENTS OF VOLUME LXIV Pages Bulletin No 278 Palynology of the ASmond Formation (Upper Cretaceous) Rock Springs Uplift, Wyoming By 279 J 1-136 1-20 L Strimple and J M Cooke 137-168 21 169-244 22-31 245-338 32-41 Stratigraphy and Genera of Calcareous Foraminifera cf the Fraileys Fades (Mississippian) of Central Kentucky By 281 Fred Stone Tabulate Corals and Echinoderms from the Pennsylvanian Winterset Limestone, Hogshooter Formation, Northeastern Oklahoma By H 280 Plates R G Browne and E R Pohl Crinoid Studies Part I Some Pennsylvanian Crinoids from Nebraska Part II Some Permian Crinoids from Nebraska, Kansas, and Oklahoma By R K Pabian and H L Strimple INDEX No separate index is included in the volume Each number indexed separately Contents of the ning of the volume volume are is listed in the begin- MUS COMP BULLETINS 200U LIBRARY OF OCT 16 19^ AMERICAN t^S«?fALEONTOLOGY (Founded 1895) Vol 64 No 278 PALYNOLOGY OF THE ALMOND FORMATION (UPPER CRETACEOUS), ROCK SPRINGS UPLIFT, WYOMING By J Fred Stone 1973 Paleontological Research Institution Ithaca, New York 14850, U.S.A PALEONTOLOGIGAL RESEARCH INSTITUTION 1972 - 73 Daniel President Philip C Secretary Rebecca Assistant Secretary Wakeley S Harris Katherine V W Palmer Director, Treasurer Armand Counsel Representative W Haas Merrill Vice-President B Sass AAAS Adams L John Pojeta, Council Jr Trustees Rebecca Cecil H Kindle (1971-1974) Harris (Life) Axel A Olsson (Life) S Harry S Ladd (1971-1974) Daniel B Sass (1971-1974) Katherine V W Palmer (Life) Donald W Fisher (1967-1973) Merrill 'W Haas (1970-1973) Philip C Wakeley Virgil D Winkler Kenneth E Caster (1972-1975) Harold (1970-1973) E (1969-1975) Vokes (1973-1975) BULLETINS OF AMERICAN PALEONTOLOGY and PALAEONTOGRAPHICA AMERICANA Katherine V W Palmer, Editor Mrs Fay Briggs, Secretary Advisory Board Hans Kugler Kenneth E Caster A Myra Keen Jay Glenn Marks Axel A Olsson Complete titles and price list of separate available numbers may be had on application For reprint, Vols 1-23, Bulletins of Kraus Reprint For reprint, vol Corp., 16 East 46th I, Subscription may American Paleontology New see York, N.Y 10017 U.S.A Palacontographica Americana see Johnson Reprint Cor- poration, 111 Fifth Ave., price of $18.00 per St., New York, N.Y 10003 U.S.A be entered at any time by volume or year, with average volume for Bulletins cana invoiced per issue Purchases ductible from income tax in Numbers of Palacontographica For sale by Paleontological Research Institution 1259 Ameri- U.S.A for professional purposes are de- Trumansburg Road New York 14850 Ithaca, U.S.A BULLETINS OF AMERICAN PALEONTOLOGY (Founded 1895) Vol 64 No 278 PALYNOLOGY OF THE ALMOND FORMATION (UPPER CRETACEOUS), ROCK SPRINGS UPLIFT, WYOMING By J Fred Stone September 28, 1973 Paleontological Research Institution Ithaca, New York 14850, U.S.A Library of Congress Card Number: 73-81675 Printed in the United States of America Arnold Printing Corporation CONTENTS Page Abstract Acknowledgments Introduction ^ Purpose and scope Previous investigations Stratigraphy General statement Almond Formation Measured sections and sample localities Techniques Sample - collection ^ Sample processing „ making Slide Assemblage 11 12 12 attributes Distribution and range of species 12 Relative abundance of species and groups of species IS Absolute abundance of groups of species and tissue 20 30 Diversity Cluster analysis 31 _ 35 Discussion and conclusions Age of the Almond Formation 35 Depositional environments 37 Palynological 40 correlations Plant associations 40 Palynomorph descriptions 41 Taxonomic 42 listing Descriptive listing _ _ References Plates Index 46 48 Descriptions 99 „ „ Ill 132 TABLES Page Tal)!e Measured Section 4, absolute abundance palynomorph groups of II Measured Section 14, absolute abundance palynomorph groups of III Measured Section 23, absolute abundance palynomorph groups of IV Measured Section 9, absolute abundance palynomorph groups I V VI VII VIII IX X XI all - 22 23 24 of Measured Section 12, absolute abundance palynomorph groups Diversity and equitability, — 25 of 26 33 species Diversity and equitability, marine species 34 Diversity and equitability, nonmarine species 36 Taxonomic placement Arrangement of of form genera and species species in the descriptions 42 and plates 46 Count Data Fold-in 48, 49 TEXT-FIGURES page map Late Campanian lithofacies Outcrop pattern of Almond Formation showing location of measured geologic sections Distribution and range of palynomorphs 10 Measured section 14 section 16 Distribution and range of palynomorphs Measured Distribution and range of palynomorphs section 14 Measured Distribution and range of palynomorphs Measured section 23 17 Distribution and range of palynomorphs Measured section 18 Distribution and range of palynomorphs Measured section 12 19 Distribution and range of palynomorphs section 8, 14 Measured 10 11 Fold-in Absolute abundance of selected palynomorph groups section section 14 Fold-in 21, 22 section 23 27 Absolute abundance of selected palynomorph groups Measured section 28 15 Absolute abundance of selected palynomorph groups 16 R-mode Measured 17 21 Absolute abundance of selected palynomorph groups Measured 14 20 Absolute abundance of selected palynomorph groups Measured 13 19, 17 Ratio marine to nonmarine species range of restricted species Fold-in 20, 21 Species diversity Measured section Measured 12 Fold-in 16, section 12 cluster analysis, all samples, all species Correlations upper Measured 29 Fold-in 35, 36 Almond Formation section 23 Fold-in 38, 39 Bulletin 281 328 Explanation of Plate 40 Permian crinoids Page Figure 1-3 Contocrinus sp cf C scopulus (Lane and Webster) Ventral, basal, and posterior views of hypotype, UNSM 9607; X 4-5 Elibatocrinus sp cf E elongatus Webster and Lane Anterior and posterior views of hypotype, SUI 35537; Delocrlnus admirensis Strimple Posterior view of hypotype, SUI 32950; figs 4, 312 308 X 1+- 305 X 1-4 (See also PI 39, 5.) Delocrinus vastus Lane and Webster DE interray view of hypotype crown, UNSM 10015; Nebraskacrinus tourteloti Moore Posterior view of hypotype, UNSM 9618; 303 X 1-3 295 X 1-4- Bull Amer Paleont., Vol 64 Plate 40 'Sit 'i^ -] H Plate 41 Bull Amer Paleont., Vol 64 Crinoid STUDIES: Pabian & Strimple 329 Explanation of Plate 41 Permian crinoids Figure 1-3 Page Graff hamicrinus sp cf G waughi (Moore and Strimple) Ventral, posterior and dorsal views of hypotype, 9611; 302 UNSM X 4-7 1.3 Graffhamicrinus boellstorffi Pabian and Strimple, new species 300 Ventral, posterior, X 8-10 interray views of holotype, UNSM 7992; Brabeocrinus cuneatus (Lane and Webster) Posterior, ventral, and dorsal views of hypotype crown, 2735; 11-12 BC X 298 OU Subarrectocrinus perexcavatus (Moore and Plummer) 305 Ventral and natural cross section views of partial cup, hypotype UNSM; X 1.5 INDEX Note: Light face figures refer to page number Bold face figures refer to the plate numbers abruptus, INDEX Council Grove Group C calycinus, Apographio- crinus Canyon Group 38 275,276,326 253,259,262, 265, 276, 279, 283 carbonarius, Apographiocrinus Graphiocrinus Cass County, Nebraska Cass (Haskell) Limestone 276 276 265,290 279,284 308,309 298 Elibat'ocrinus Celonocrinus Ceriocrinus Chase County, 251 314 290,292,297, 303, 307, 314 294 Kansas Chase Group Chordata christinae, Brabeocrinus Church Member Cibolocrinus Cisco Group Cladida clarus, Athlocrinus Clathrocrinus clypeiformis, Athlocrinus coacervatus, Galateacrinus Coffeyville, Kansas 297 279 251 267 252,295 285 293 284 286 279 colubrosus, Microcaracrinus Pachylocrinus 306 306 comminutus, Arrectocrinus 38 249, 273, 274, 326 294 Composita comptus, Brabeocrinus 297 297 Stellarocrinus concinnulus, Elibatocrinus confertus, Schistocrinus Sciadiocrinus 308 conicus, Delocrinus conjugulus, Microcaracrinus Contocrinus 284 284 304 306 290-292,311, 312 INDEX Garnett Quarry, Oklahoma Echinodermata 252,294 elegans, Elibatocrinus elevatus, 308,309 Erisocrinus Elibatocrinus Elibatocrinus sp Elk County, Kansas Gastropoda genus and species 32 undetermined genus and species undetermined 39 252,253,260 296,307,308 308,309 311 georgeae, Erisocrinus gerdesi, 288 Parethelocrinus 252,255 35, 36 249, 274, 275, 323, 324 36 282,283,324 283 Plaxocrinus Vertigocrinus gossameri, Galateacrinus Graffhamicrinus 328 251, 278, 279, 306,311 34 249,286,322 249,268-271, 290 300-302 Graford Formation erectus, Erisocrinus Parerisocrinus Erisocrinus 314,327 gloukosensis, elongatus, 308,309 Elibatocrinus elongatus, Elibato40 296,308,309, crinus sp cf Endelocrinus 289,320 Pyndaxo- crinus ellipticus, 259 294 260,262,276, 283 259,260 32 259, 260, 320 Grant Shale Member 251, 292, 297, 249,251-255, 303, 307, 311, Erisocrinus sp 314 258, 259 256, 320 32 Ervine Creek Limestone granulosus, Delocrinus Graffhamicrinus 256, 262, 265, 268, 272, 277, Ethelocrinus Euerisocrinus Eupachycrinus Euphemites 268 268 graphicus, 280 251,288 311 251,282,284 294 268,271 Delocrinus Graffhamicrinus 33 268,271,320 311 Graphiocrinus 304 Grenola Formation 286 252,257,258 H ewersi, Galateacrinus Exaetocrinus 251 Haeretocrinus Halogetocrinus 263, 290, 296, 309-311 Harpersville Apographiocrinus 276 fayettensis, Endelocrinus harrisae, 278,311 Sciadiocrinus Haskell (Cass) 278,311 294 healdae, Erisocrinus Eupachycrinus Fenestella Five Point Limestone Member Gage County, Nebraska Galateacrinus 284 253,261,265 Limestone fayettensis, Foraker Formation 267 Formation facetus, 304 301,302,310 Heliosocrinus hemisphaericus, Ceriocrinus Scaphiocrinus hemisphericus, Delocrinus 251,292,314 249,286 332 Poteriocrinus Scaphiocrinus 32 249, 252, 255, 320 297,298 ? 251 249 33 263, 264, 266, 271, 303, 320 303 251 INDEX Heumader Shale Holcocrinus hoodi, Elibatocrinus Hooper Brother Quarry, Nebraska 266 312 308,309 252 leptocalyx, 279 Elibatocrinus Libratocrinus Howard Limestone Formation Hughes Creek Shale Member 300,302,310 Lecobasicrinus 35 Hydreionocrinus 284,323 251, 281, 282, Hypermorphocrinus 284 281 I latan Limestone 251 iatani, 251 inflexus, Cyathocrinus Delocrinus invaginatus Pirasocrinus Sciadiocrinus 249 251 284 284 265 Formation 307,309 252,258 294 Linoproductus Livingston County, 263,279 llanoensis, Sciadiocrinus lobatus, Plaxocrinus longwelli, Erisocrinus lustrum, Exaetocrinus sp cf lola 258, 271, 285, 287, 289 Illinois humilis, Sciadiocrinus Ethelocrinus 262,309 Lecompton Formation Jack County, Texas Janesville Shale K Kansas City Group 279, 283 304 284 282 252 32 257,258,320 INDEX 249,257-259, Missourian Stage 263 missouriensis, 267 Delocrinus modestus, Plaxocrinus 282 moniliformis, Delocrinus granulosus var 268 Graffhamicrinus granulosus var Mooreocrinus Morrowan Stage 268 251,288 278 Mound, the (Bartlesville, Oklahoma) mucrospinus, Zeacrinus Myalina 279,289 251 294 N INDEX Pelmatazoa Pentadelocrinus Perimestocrinus perexcavatus, Delocrinus Subarrectus perundatus, Plaxocinus Phialocrinus 252,294 261 251 41 305 305,329 282 262 pictus, Delocrinus Graffhamicrinus 268 268 284 33 285,320 Pirasocrinus placidus, Athlocrinus planatus, Schistocrinus Sciadiocrinus Platte Valley, Nebraska 284 284 251 Plattsburg Formation 259, 262, 283- 285 plattsburgensis, Parethelocrinus 36 Ethelocrinus Plattsmouth Limestone Plaxocrinus 288,324 288 265,267,272 251,282 platybasis, Eupachycrinus Sciadiocrinus Plummericrinus Pontiac, Illinois pontiacensis, Parulocrinus Pontotocrinus 284 284 293 279 Poteriocrinitina Poteriocrinus 288 252 252, 295 263 Pottawatamie County, Kansas 304,305 praevalens, Plaxocrinus Probletocrinus propinquus, Erisocrinus Protencrinus protensus, Erisocrinus Neocatacrinus 36 Paradelocrinus prudentia, Aesiocrinus Halogetocrinus Pteronites P.W.A Quarry, Nebraska Pyndaxocrinus 282 288 252 252 261 261,324 261 309 309, 310 294 260 249,274 Queen Hill Quarry, INDEX Shoemaker Bridge, Nebraska tetraspinosus, Graffhamicrinus 34, 35 249, 269, 270, 322, 323 texanus, 253 252 Sinocrinus Soldier Creek Limestone 272 Brychiocrinus Tholiacrinus 268 268 253 Topeka Formation somersi, Delocrinus Graffhamicrinus South Bend Limestone South Bend Limestone spinosus, Endelccrinus 37 tumidus Spirorbis Stellarocrinus Stemmatocrinus Stenopora 253,271 279,325 294 283 312 253,271,279 251,297,298 252 294 tulsaensis, stevensi, Galateacrinus Stranger Formation Straparollus Strawn Group 286 253,261,279 294 261 strigosus, Plaxocrinus Stuartwellercrinus Stull Shale stullensis, 282 257 251 subidus, Nebraska Snyderville Shale Synarmocrinus Graffhamicrinus tumidus, Delocrinus Endelocrinus Tholiacrinus tumulosus, Plaxocrinus 268 32 278 278,320 278 282 turioformis, Bathronocrinus twenhofeli, Microcaracrinus 281,282 38, 39 293, 306, 326, 327 Pachylocrinus 268,272 Delocrinus Graffhamicrinus 33 268, 272, 301, 320 Subarrectocrinus 305 subcoronatus, Delocrinus 268,271 Graffhamicrinus 37 268, 271, 325 subhemisphericus, Delocrinus 269,271 Lecobasicrinus subtumidus, Barycrinus Snyderville Quarry, 257,273-275, 279, 282 Toronto (Weeping Water) Limestone 261,265,271 tourteloti, Nebraskacrinus 39, 40 293, 295, 296, 327, 328 Tribolita 294 Tulsa County, Oklahoma 259 Spring Hill Limestone Member Stachyocrinus Stanton Formation 298 251,278 309 251 266 251 288 293, 306 Plummericrinus 293 typicalis, Apographiocrinus 275,277 249,251,252 typus, risocrinus U uddeni, 282 288 Hydreionocrinus Ulocrinus United Mineral Products Quarry, Nebraska 252 288 251 Ureocrinus Utharocrinus V validus, Scytalocrinus 289 variabilis, Tarkio Limestone Ethelocrinus Graffhamicrinus Parethelocrinus 249 terminalis, Erisocrinus 258 288 268 288 vastus, Delocrinus terminalis, Libratocrinus 258 336 40 290-293,303, 304, 328 INDEX Westerville verrucosus, 251 267 Eupachycrinus verus, Delocrinus Virgil Series 250, 253, 256258, 261, 263, 267-272, 274, 275, 277, 279, 280, 282, 284, 285, 287, 289 249,251,253, Virgilian Stage 257, 263, 269, 278, 286, 289, virgilicus, crinus 309 Apographio38 249,276,277, 326 Formation 292, 297, 303, Winterset Limestone Wise County, Texas wolfcampensis, Apographiocrinus Wolfcampian Stage wolforum, Delocrinus Graffhamicrinus Wolf River Limestone 307,311,314 279,283 261,266 276, 277 290,292 268 268 257,282 Wolfriverensis, virginarius, 282 Plaxocrinus vulgatus, 35 266,267,323 Delocrinus W Wabaunsee beds Wabaunsee Group Wagoner Quarry, 249 Illinois Wann Formation watkinsi, Ethelocrinus Parethelocrinus waughi, Delocrinus Graffhamicrinus Graffhamicrinus sp cf Wayside, Kansas Weeping Water, Nebraska 260 Limestone Winfield Limestone 41 268, Bathronocrinus 35 249,281,282, 323 Wyandotte County, Kansas Wyandotte Formation 283 265,283 BULLETINS OF AMERICAN PALEONTOLOGY St., New York, Vols I-XXIII See Kraus Reprint Corp., 16 East 46th N Y 10017, U.S.A XXIV (Nos 80-87) 334 pp., 27 pb _ 12.00 _ 12.00 Mainly Paleozoic faunas and Tertiary Mollusca XXV XXVI (Nos 88-94H) 306 pp., 30 pis Paleozoic, Mesozoic, and Miocene fossils (Nos 95-100) Florida Recent, Cenozoic XXVII XXVIII XXIX 420 pp., Texas 58 South XXXI XXXII XXXIII America Cretaceous, fossils (Nos 101-108) 376 pp., 36 pis Tertiary mollusks Paleozoic Venezuela, Devonian 14.00 fish (Nos 109-114) 412 pp., 34 pis Paleozoic cephalopods, Cretaceous Eocene, forams (Nos 115-116) 738 pp., 18.00 cephalopods (No 117) 563 pp., 65 pis Jackson Eocene mollusks (Nos 118-128) 458 pp., 27 pis Mollusks, crinoids, corals, forams, Cuban 16.00 16.00 localities „ (Nos 129-133) 294 pp 39 pis Silurian cephalopods, crinoids Tertiary forams, Mytilarca (Nos 134-139) 448 pp., 51 XXXV XXXVI XXXVII XXXVin XXXIX XL XLI XLII strati- (Nos 140-145) 400 pp., 19 pis Forams, cephalopods, ostracods, conularid bibliography (Nos 146-154) 386 pp., 31 pis Forams, cephalopods, mollusks, ostracods (Nos 155-160) Forams, Eocene 412 pp., 53 16.00 16.00 pis Devonian annelids Tertiary mollusks, Ecuadoran graphy paleontology XXXIV 14.00 52 pis Bowden forams and Ordovician XXX 14.00 pis and pis 16.00 _ 16.00 _ 16.00 fish, rudists (Nos 161-164) 486 pp., 37 pis Antillean Cretaceous Rudists, Canal Stromatoporoidea 16.00 Zone Foraminifera, (Nos 165-176) 447 pp., 53 pis Forams, ostracods, mollusks, Carriacou, fossil plants (Nos 177-183) 448 pp 36 pis South American forams, Panama Caribbean mollusks (No 184) 996 pp., pi Type and Figured Specimens P.R.I (Nos 185-192) 381 pp., 35 pis Forams, mollusks, carpoids, Corry Sandstone 18.00 16.00 18.00 16.00 (No 193) 673 pp., 48 pis Venezuelan Cenozoic gastropods 18.00 XLin (Nos 194-198) 427 pp., 29 pis Ordovician stromatoporoids, Indo-Pacific camerinids, Mississippian forams, Cuban rudists 16.00 XLIV 365 pp., (Nos 199-203) Puerto Rican, Antarctic, clina, Eumalacostraca 16.00 XLV XLVI XLVII XLVIII XLIX 68 New pis Zealand forams, Lepidocy- (No 204) 564 pp., 63 pis Venezuela Cenozoic pelecypods 18.00 (Nos 205-211) 419 pp., 70 pis Forams, Crustacea, brachipods Recent mollusks, (Nos 212-217) 584 pp., 83 pis 16.00 Forams, mollusks, polychaetes, ammonites (No 218) 1058 pp., pis Catalogue of the Paleocene and Eocene Mollusca of the Southern and Eastern United States (Nos 219-224) 671 pp., 83 pis Peneroplid and Australian forams North American carpoids South Dakota palynology, Venezuelan Miocene molluska Valuta 18.00 18.00 18.00 L (Nos 225-230) Venezuela and 518 pp., 42 pis Florida cirripeds, 18.00 „ Antarctic foiams, Linnaean Olives, Camerina, Ordovician conodonts, Niagaran foraras LI LII 420 pp., 10 pis (Nos 231-232) Antarctic bivalves, Bivalvia catalogue 18.00 387 pp., 43 pis _ foranos, Stromatoporoidea, Indo-Pacific, cene-Pliocene California foraras (Nos 233, 236) New Zealand 18.00 Mio- LIII 488 pp., 45 pis (Nos 237-238) Venezuela Bryozoa, Kinderhookian Brachiopods 18.00 LIV (Nos 239-245) 18.00 510 pp., 50 pis Dominican ostracodes, Texan pelecypods, Wisconsin mollusks, Siphocypraea, Lepidocyclina, Devonian gastropods, Miocene Pectens Guadaloupe LV LVI LVII LVIII LIX LX 657 pp., 60 pis (Nos 246-247) Cenozoic corals, Trinidad Neogene mollusks 18.00 (Nos 248-254) 572 pp., 49 pis American Foraminifera, North Carolina fossils, coral types, Belanski types, Venezuelan Cenozoic Echinoids, Cretaceous Radiolaria, Cyraatiid gastropods 18.00 321 (Nos 255-256) Jurassic ammonites 18.00 pp., 62 pis 305 pp., 39 pis (Nos 257-262) Cretaceous Radiolaria, Cretaceous Foraminifera, Pacific Silicoflagellates, North American Cystoidea, Cincinnatian Cyclonema, new species Vasum 18.00 314 pp (No 263) Bibliography of Cenozoic Echinoidea 18.00 33 pp., 68 pis (Nos 264-267) Jurassic-Cretaceous Radiolaria, cirripeds, 18.00 Bryozoa, paly- nology LXI (Nos 268-270) Mollusks, LXII Murex (Nos 271-274) Trace fossils, 365 pp 31 pis catalogue Cretaceous Radiolaria 375 pp., 44 pis ammonoids, Silicoflagellates, 18.00 _ 18.00 microfauna LXIII (Nos 275-277) 320 pp., 56 pis Chitinozoa, Spumellariina, Mexican Ammonites 18.00 LXIV (Nos 278-281) Palynology, corals, echinoderms, Foraminifera, and crinoids 18.00 Palaeontographica Americana Volumel See Johnson Reprint Corporation, 111 Fifth Ave., New York, N Y 10003 Monographs of Areas, Lutetia, rudistids and venerids II (Nos 6-12) 531 pp., 37 pis Heliophyllura halli, Tertiary turrids, Neocene Spondyli, Paleozic cephalopods Tertiary Fasciolarias and Paleozoic and Recent Hexactinellida 23.00 III (Nos 13-25) 513 pp., 61 pis Paleozoic cephalopod structure and phylogeny, Paleozoic siphonophores, Busycon, Devonian fish studies, gastropod studies Carboniferous crinoids Cretaceous jellyfish, Platystrophia and Venericardia 28.00 IV (Nos 26-33) 492 pp., 72 pis „ Rudist studies Busycon, Dalmanellidae Byssonychia, Devonian lycopods, Ordovican eurypterids Pliocene mol- 28.00 lusks V 3^ (Nos 34-47) 445 pp., 101 pis 32.00 Tertiary Arcacea, Mississippian pelecypods, Ambonychiidae, Cretaceous Gulf Coastal foraras VI (Nos 38-41) 444 pp., 83 pis Lycopsids and sphenopsids of Freeport Coal, Venericardia, Carboniferous crinoids, Trace fossils 35.00 VII (Nos 42-46) 499 pp., 79 pis Torreites Sanchezi, Cancellariid Radula, Ontogeny, sexual diraorphism trilobites, Jamaician Rudists, Ordovician 45.00 Crinoids ... is included in the volume Each number indexed separately Contents of the ning of the volume volume are is listed in the begin- MUS COMP BULLETINS 200U LIBRARY OF OCT 16 19^ AMERICAN t^S«?fALEONTOLOGY... (1967) When a precise aliquot of a known volume of residue from a known weight of sample is counted, the number of "grains per gram" of Processing of a at an estimation of the absolute sediment may... (.01ml) of a known volume of residue (15ml) from a weighed sample (lOg) permits calculation of the number of palynomorphs per gram of sediment Computer calculations were made of the gram" of the