Paleozoic MICROFOSSILS (Devonian fossils) from Rockford, IA    home  >>
See photos of Rockford site >>  P1,  P2,  P3,  P4    Fossils collected and imaged by C. Drewes & B. Dunphy
Tools for picking up microfossils   >>  WIDGET:  W1, W2 (dry)  
  >>  STRETCH PIPET:  S1, S2 (underwater)

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t

charophyte oogonia
(green alga)

 

assorted spines (left)
spine & plate (affinity?)

 

scolecodonts
(polychaete jaw)

charophyte oogonia
(internal view)

 

tentaculitids

 

scolecodonts
(left)   (right)

foraminifera (protozoa)
(left)   (right)

 

 

tiny snail (left)
assorted snails

 

fenestrate bryozoa

sponge spicules
(left)  
(right)

 

conodont
(jaw apparatus)

 

bryozoa (left)
bryozoa (right)

crinoid fragment
(echinoderm)

 

conodonts
(left)   (right)

 

ostracod (crustacean)
ostracods (right)

crinoid fragments
(echinoderm)

 

20 conodonts
(jaw apparatus)

 

tiny brachiopod (left)
4 brachiopods (right)

ring (crinoid disk?)
(Other ideas?)

 

grooved bar (affinity?)
[Other ideas?]

 

echinoid spines 
(sea urchin)

Email feedback and ideas to: cdrewes@iastate.edu

Paleozoic MACROFOSSILS (Devonian fossils) from Rockford, IA        home  >>
See photos of Rockford site >>  P1, P2, P3, P4           
Fossils collected and imaged by C. Drewes & B. Dunphy   

click on
image
or tex
t

tabulate coral
Alveolites?

 

snail (left)
snail (right)

 

brachiopod

solitary coral (left)
solitary coral (right)

 

snail (sunken spire)

 

brachiopod
Atrypa rockfordensis

solitary coral (left)
solitary coral (right)

 

snail (left)
snail (right)

 

brachiopod
Atrypa independensis

coral colony (L) (R)
Pachyphyllum?

 

nautiloid (cephalopod)

 

brachiopod
Dielasma

tubular coral colony (Aulopora?) (L) (R)

 

crinoid plates (L)
crinoid plates (R)

 


brachiopod

branching bryozoa
(left)  (right)

 

crinoid plates (L)
crinoid plates (R)

 

brachiopod

bryozoan colony (L)
close-up bryozoa (R)

 

crinoid  with
encrusting bryozoa

 

brachiopod
Spinatrypa

fenestrate bryozoa
(left)
  (right)

 

echinoid plate

 

brachiopod
Schizophoria

bivalves (right)
bivalve left)

 

brachiopod

 

brachiopod
Cyrtina
large bivalve  

brachiopod

  brachiopod
large snails   brachiopod   brachiopod
Theodossia
high spire snail   brachiopod
Strophonelloides ?
  brachiopod

Click here to
see image quiz

FOSSIL IMAGE QUIZ

  brachiopod   brachiopod

Email feedback and ideas to: cdrewes@iastate.edu