Knowledge (XXG)

Alaoceras

Source 📝

341: 37: 184:
is characterized by its generally subdiscoidal shell with moderately involute whorls and a wide or moderately wide umbilicus, ornamented with sharply defined lamellae, very weak and sometimes disappearing lirae, and elongated protuberances on the umbilical wall. Normally there are one or two
185:
constrictions per revolution. The suture is goniatitic with a widely diverging bifurcated ventral lobe in which the height of the median saddle is less than half of the whole lobe.
300: 382: 277: 375: 406: 221:
Saunders, Work, and Nikolaeva, 1999. Evolution of Complexity in Paleozoic Ammonoid Sutures, Supplementary Material.
411: 36: 401: 368: 216: 292: 232: 313: 340: 31: 318: 305: 264: 352: 222: 175: 130: 117: 193: 395: 269: 255: 171: 163: 91: 78: 348: 167: 104: 48: 249: 68: 282: 58: 226: 211: 230: 356: 239: 178:, named by Ruzhentsev & Bogoslovskaya in 1971. 376: 8: 383: 369: 227: 20: 7: 337: 335: 150:Ruzhentzev & Bogoslovskaya, 1971 355:. You can help Knowledge (XXG) by 14: 339: 293:tax00000000000000000000000004820 35: 197:, which it resembles overall. 1: 428: 334: 166:cephalopod from the upper 16:Genus of molluscs (fossil) 191:is probably derived from 32:Scientific classification 30: 23: 351:-related article is a 217:Paleobiology-Alaoceras 314:Paleobiology Database 407:Goniatitida genera 412:Goniatitida stubs 364: 363: 329: 328: 233:Taxon identifiers 155: 154: 151: 419: 402:Cravenoceratidae 385: 378: 371: 343: 336: 322: 321: 309: 308: 296: 295: 286: 285: 273: 272: 260: 259: 258: 228: 176:Cravenoceratidae 170:included in the 149: 142: 131:Cravenoceratinae 129: 118:Cravenoceratidae 116: 103: 90: 40: 39: 21: 427: 426: 422: 421: 420: 418: 417: 416: 392: 391: 390: 389: 332: 330: 325: 317: 312: 304: 299: 291: 289: 281: 276: 268: 263: 254: 253: 248: 235: 208: 203: 148: 140: 127: 114: 101: 88: 34: 17: 12: 11: 5: 425: 423: 415: 414: 409: 404: 394: 393: 388: 387: 380: 373: 365: 362: 361: 344: 327: 326: 324: 323: 310: 297: 287: 274: 261: 245: 243: 237: 236: 231: 225: 224: 219: 214: 207: 206:External links 204: 202: 199: 194:Pachylyroceras 153: 152: 138: 134: 133: 125: 121: 120: 112: 108: 107: 99: 95: 94: 86: 82: 81: 76: 72: 71: 66: 62: 61: 56: 52: 51: 46: 42: 41: 28: 27: 15: 13: 10: 9: 6: 4: 3: 2: 424: 413: 410: 408: 405: 403: 400: 399: 397: 386: 381: 379: 374: 372: 367: 366: 360: 358: 354: 350: 345: 342: 338: 333: 320: 315: 311: 307: 302: 298: 294: 288: 284: 279: 275: 271: 266: 262: 257: 251: 247: 246: 244: 242: 238: 234: 229: 223: 220: 218: 215: 213: 212:GONIAT online 210: 209: 205: 200: 198: 196: 195: 190: 186: 183: 179: 177: 173: 169: 165: 161: 160: 147: 146: 139: 136: 135: 132: 126: 123: 122: 119: 113: 110: 109: 106: 100: 97: 96: 93: 87: 84: 83: 80: 77: 74: 73: 70: 67: 64: 63: 60: 57: 54: 53: 50: 47: 44: 43: 38: 33: 29: 26: 22: 19: 357:expanding it 346: 331: 240: 192: 188: 187: 181: 180: 158: 157: 156: 144: 143: 24: 18: 124:Subfamily: 105:Goniatitida 79:Cephalopoda 396:Categories 201:References 172:goniatitid 92:Ammonoidea 85:Subclass: 349:Goniatite 256:Q13583366 241:Alaoceras 189:Alaoceras 182:Alaoceras 168:Paleozoic 159:Alaoceras 145:Alaoceras 55:Kingdom: 49:Eukaryota 25:Alaoceras 290:GONIAT: 250:Wikidata 164:ammonoid 111:Family: 69:Mollusca 65:Phylum: 59:Animalia 45:Domain: 306:1294249 283:4624068 174:family 137:Genus: 98:Order: 75:Class: 162:is an 347:This 319:13610 301:IRMNG 353:stub 278:GBIF 270:RDY 265:CoL 398:: 316:: 303:: 280:: 267:: 252:: 384:e 377:t 370:v 359:. 141:† 128:† 115:† 102:† 89:†

Index

Scientific classification
Edit this classification
Eukaryota
Animalia
Mollusca
Cephalopoda
Ammonoidea
Goniatitida
Cravenoceratidae
Cravenoceratinae
Alaoceras
ammonoid
Paleozoic
goniatitid
Cravenoceratidae
Pachylyroceras
GONIAT online
Paleobiology-Alaoceras

Taxon identifiers
Wikidata
Q13583366
CoL
RDY
GBIF
4624068
tax00000000000000000000000004820
IRMNG
1294249
Paleobiology Database

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.