Elasmobranchii (world)

Assemblage (Japan)

Summary (Japan)

Dentition

Tooth

Edestus

Borealotodus

Serratolamna

Holocene

Aoso

Hexanchus

Neurocrania

Hexanchidae

C. anguineus

C. umbratile

Orodus

Carcharias

Alopias

Yurakucho

Koderayama

Squalus

Spines & Rostrum

Echinorhinidae

H. perlo

P. microdon

Petalodus

Hispidaspis

Trigonotodus

Pleistocene

Taga G.

Deania

Dentitions

Squalidae

S. mitsukurii

H. japanica

Ctenacanthus

Hypotodus

Megachasma

Jizodo

Sekinohana

Dalatias

Chlamydoselachus

Centrophoridae

C. atromarginas

T. scyllium

Triodus

Jaekelotodus

Pseudocorax

Ichijiku

Haratajino

Squatina

Squalus

Etomopteridae

E. pusillus

M. manazo

Hybodus

Odontaspis

Squalicorax

Umegase

Godo

Heterodontus

Deania (Size)

Trigonognathus

T. kabeyai

P. glauca

Ptychodus

Striatolamia

Scyliorhinus

Shinzato

Yatsuo G.

Carcharias

Cookiecutter shark

Somniosidae

S. ichiharai

C. melanopterus

Sphenodus

Anomotodon

Galeorhinus

Omma

Kumano G.

Alopias

Etmopterus

Pristiophoridae

D. licha

S. zygaena

Synechodus

Mitsukurina

Abdounia

Dainichi

Mitsugano M.

Cetorhinus

Trigonognathus

Squatinidae

P. japonicus

Hexanchus

Isurus

Hemipristis

Pliocene

Kitanagano M.

Carcharodon

Heterodontus

Orectolobiformes

S. japonica

Living Shark

Echinorhinus

Lamna

Negaprion

Ananai

Isurus

Carcharodon

Heterodontidae

C. plagiosum

Ray

Squalus

Cretodus

Rhizoprionon

Zukawa

Oligocene-Eocene

Parotodus

Carcharodon II

Mitsukurinidae

H. japonicus

Chimaera

Isistius

Cretalamna

Glyphis

Kosawa

Jinnobaru

Otodus

Isurus

Alopiidae

M. owstoni

Formation

Pristiophorus

Cretoxyrhina

Dainenji

Yamaga

Galeorhinus

I. planus

Lamnidae

P. kamoharai

Miscellaneous

Squatina

Paleocarcharo.

Yonabaru

Iwaki

Triakis

Intermediate tooth

Pentanchidae

C. taurus

Heterodontus

Otodus

Naarai

Namigata

Galeocerdo

Assemblages

Triakidae

O. ferox

Dermal denticle

Ginglymostoma

Parotodus

Miocene

Kawamagari

Negaprion

Carcharhinidae

A. vulpinas

Histology

Rhincodon

Cardabiodon

Furuya

Cretaceous

Carcharhinus

Carcharhinus I

Carcharhinus

L. ditropis

Orectolobus

Leptostylax

Senhata M.

Ashizawa

Sphyrna

Carcharhinus II

Sphyrnidae

G. eastmani

Photos

April 21, 2025

Miscellaneous

Formation

Deania (Size)

J-elasmo

fwkx8282@nifty.com

Fumio Nakagawa