• Karoceratidae is a family of nautiloids within the order Oncocerida, characterized by straight or curved, laterally narrow, shells and slender, ventral...
    1 KB (96 words) - 19:26, 18 July 2023
  • during the Silurian and possibly Early Devonian, type genus for the Karoceratidae. The shell is a compressed, exogastric cyrtocone, section sub ovoid...
    1 KB (130 words) - 15:27, 13 July 2024
  • the Silurian period of the Paleozoic. It is included in the family Karoceratidae, characterized by compressed straight or exogastricly curved shells...
    1 KB (71 words) - 01:46, 29 December 2022
  • strongly curved on the upper, or dorsal side. This is opposite from the Karoceratidae in which siphuncle segments are inflated ventrally but straight dorsally...
    2 KB (180 words) - 01:43, 29 December 2022
  • Thumbnail for Oncocerida
    Jovellaniidae (5)  ? U Ord, M Sil - L Dev. Nothoceratidae (10) L Sil - U Dev Karoceratidae (3) L - M Sil, ?L Dev Hemiphragmoceratidae (5) M-U Sil, ?M Dev Acleistoceratidae...
    5 KB (681 words) - 00:11, 30 November 2021
  • Shuranoceras is a genus in the extinct oncocerid family Karoceratidae that plied the shallow sea floor from the Early Silurian to the Early Devonian....
    1 KB (148 words) - 05:12, 30 December 2022
  • Manitoba, one of five general currently included in the oncocerid family Karoceratidae. Osbornoceras grew to be somewhat large and is characterized by a narrow...
    3 KB (281 words) - 19:30, 18 July 2023
  • genus of Early Devonian cephalopods included in the oncocerid family Karoceratidae. The type species, Ankyloceras nesnayamiense named by Zhuravleva, 1974...
    2 KB (237 words) - 20:43, 17 December 2021