ERTH2002 Prac 6 Survey of Invertebrate Diversity II – Fossil Records

 

Phylum Arthropoda

Superclass Trilobitomorpha

 

Underside of Olenoides showing legs
Sample 1 Reconstructions of the Cambrian trilobite Olenoides

Sample 2 Cast of Olenoides (Cambrian)

Sample 3 Cast of Ogygopsis (Cambrian)
Sample 4 Agnostus (a blind trilobite) (Cambrian)

Sample 5 Devonian trilobite Phacops

Phylum Echinodermata

Class Crinoidea

Sample 10a modern  stalkless crinoids

Sample 10b modern stalked crinoid (from the Coral Sea)

Sample 11 Cast of stalked crinoids

Sample 12 Cast of stalked crinoid

Sample 13 basal cup of the crinoid Eucalyptocrinities from the Devonian of Australia

Sample 14a crinoid stems

Sample 14b crinoid stems

Sample 15 crinoid stems (left) and Sample 16 crinoid ossicles (right) in limestone

Crinoidal limestone with geopetal structure in the large crinoid stem at centre

Class Blastoidea

 

Sample 17 blastoid calyce

 

Class Asteroidea

Modern starfishes

Sample 18 fossil starfish

Class Echinoidea

 

Modern examples of echinoids (sea urchins and sand dollars)

Sample 19  echinoids

Sample 20 echinoid

 

Phylum Hemichordata

Class: Graptolithina

Sample 21

Sample 22

Sample 23

Sample 24

Sample 25