Page:The Habitat of the Eurypterida.djvu/95

 Ceratiocarids.

Ceratiocaris laxa

Ceratiocaris longa

Ceratiocaris papilio

Ceratiocaris stygius

Ceratiocaris cf. murchisoni

Worm tracks.

(2) In same bed $$\tfrac{1}{2}$$ mile distant:

Eurypterids:

Pterygotus bilobus

Slimonia acuminata

Ceratiocarids:

Ceratiocaris sp.

Dictyocaris ramsayi

Coelolepid fish: Thelodus scoticus

Myriopods ? impressions of

(3) From Long Burn, tributary of Logan Water in same bed

Eurypterid: Pterygotus bilobus

Ceratiocarid:

Dictyocaris ramsayi (Taxonomic position doubtful)

Ceratiocaris sp.

Ostracods: Beyrichia kloedeni

Beyrichia kloedeni var. torosa

Pelecypods: Modiolopsis nilssoni

Orthonota sp.

Brachiopod: Lingula minima

Gastropod: Platyschisma (Trochus) helicites

Worm tubes: Spirorbis sp.

(4) One half south of Logan House in " fish-band"

Eurypterid: Slimonia acuminata

Ceratiocarids: Ceratiocaris longa

C. murchisoni

C. papilio

C. stygius

Physocaris sp.

Coelolepid fish: Thelodus scoticus

T. planus.

Fish fragment undet

Myriopods: Archidesmus loganensis

(5) At Logan Water in Pterygotus beds overlying Ceratiocaris beds.

Eurypterids: Eurypterus lanceolatus

E. obesus

E. scorpioides

Pterygotus bilobus

P. bilobus var. acidens

P. bilobus var. inornatus

P. raniceps

Slimonia acuminata

Stylonurus logani