Fumio Nakagawa
April 21, 2000-
Elasmobranchii (world) Assemblage (Japan) Summary (Japan) Dentition Tooth
Edestus Borealotodus Serratolamna Holocene Miocene Oligocene Hexanchus Neurocrania Hexanchidae C. anguineus C. umbratile
Orodus Carcharias Alopias Yurakucho Furuya Jinnobaru Squalus Spines,Rostrum Echinorhinidae H. perlo P. microdon
Petalodus Hispidaspis Trigonotodus Senhata M Yamaga Deania Dentitions Squalidae S. mitsukurii H. japanica
Ctenacanthus Hypotodus Megachasma Pleistocene Aoso Iwaki Dalatias Chlamydoselachus Centrophoridae C. atromarginas T. scyllium
Triodus Jaekelotodus Pseudocorax Jizodo Koderayama Squatina Squalus Etomopteridae E. pusillus M. manazo
Hybodus Odontaspis Squalicorax Ichijiku Taga G. Eocene Heterodontus Deania (serration) Trigonognathus T. kabeyai P. glauca
Ptychodus Striatolamia Scyliorhinus Umegase Sekinohana Namigata Carcharias Cookiecutter shark Somniosidae S. ichiharai L. macrorhinus
Sphenodus Anomotodon Galeorhinus Shinzato Haratajino Kawamagar Alopias Etmopterus Pristiophoridae D. licha R. acutus
Synechodus Mitsukurina Abdounia Omma Chichibumachi Cetorhinus Trigonognathus Squatinidae P. japonicus C. melanopterus
Hexanchus Isurus Hemipristis Dainichi Godo Cretaceous Carcharodon Heterodontus Orectolobiformes S. japonica S. zygaena
Echinorhinus Lamna Negaprion Yatsuo G. Ashizawa Isurus Carcharodon Heterodontidae C. plagiosum
Squalus Cretodus Rhizoprionon Pliocene Kumano G. Parotodus Carcharodon II Mitsukurinidae H. japonicus Dermal denticle
Isistius Cretalamna Glyphis Ananai Mitsugano M. Miscellaneous Otodus Isurus Alopiidae M. owstoni Histology
Pristiophorus Cretoxyrhina Zukawa Kitanagano M. Galeorhinus I. planus Lamnidae P. kamoharai
Squatina Paleocarcharo. Kosawa Formation Triakis Pseudotriakis Pentanchidae C. taurus Living shark
Heterodontus Otodus Dainenji Galeocerdo Intermediate tooth Triakidae O. ferox Ray
Ginglymostoma Parotodus Yonabaru Negaprion Assemblages Carcharhinidae A. vulpinas Chimaera
Rhincodon Cardabiodon Naarai Carcharhinus Carcharhinus L. ditropis
Orectolobus Leptostylax Sphyrna Carcharhinus Sphyrnidae G. eastmani Photo
J-elasmo
May 28, 2025 Chichibumachi  Pseudotriakis Deania (Serrations)
J-elasmo
fwkx8282@nifty.com
Fumio Nakagawa