THE KIMMSWICK AND PLATTIN LIMESTONES 
189 
16. THE FAUNA OF THE AUBURN CHERT, IN LINCOLN COUNTY, 
MISSOURI 
The following is a list of the species occurring in the Auburn 
chert, in the vicinity of Auburn, in Lincoln County, Missouri. 
Almost all of the species mentioned were listed by Professor 
Branson in his paper on the fauna of* this chert, published in 
1909. To this have been added those species which in the body 
of Bassler’s Bibliographic Index are cited from the same horizon 
and locality; and also a few species found by the writer in the 
quarry a short distance north of Auburn, on the east side of the 
main pike. Those found in this quarry are italicized. The new 
species described by Branson 
Hindia parva 
Columnaria halli 
Lichenaria typa 
Streptelasma corniculum 
2. Beatricea gracilis 
Dalmanella testudinaria 
Orthis tricenaria 
Pianodema subaequata 
Rafinesquina minnesotensis 
Strophomena incurvata 
Zygospira nicolleti 
Zygospira recurvirostris 
Aristerella nitidula 
Clionychia lamellosa 
* Ctenodonta auburnensis 
* Ctenodonta costata 
Ctenodonta logani 
Ctenodonta medialis 
Ctenodonta nasuta 
Ctenodonta oviformis 
Cyrtodonta billingsi 
Goniophora carinata 
Modiolodon (?) gibbus 
* Modiolodon subrhomboideus 
* Modiolopsis expansa 
* Parallelodus obliquus 
Whiteavesia subcarinata 
Archinacella patelliformis 
Bellerophon capax 
Bucania halli 
Carinaropsis acuta 
Carinaropsis phalera 
* Cataschisma typa 
Cyrtolites retrorsus fillmorensis 
are indicated by *. 
Eotomaria dryope 
* Helicotoma missouriensis 
Helicotoma planulata 
Helicotoma tennesseensis 
Holopea insignis 
* Hormotoma fasciata 
Hormotoma gracilis sublaxa 
* Hormotoma latiangularis 
Liospira micula 
Liospira progne 
Lophospira fillmorensis 
Lophospira obliqua 
Lophospira oweni 
Lophospira perangulata 
Lophospira saffordi 
Lophospira spironema 
Phragmolites fimbriatus 
Strophostylus textilis 
Trochonema umbilicatum 
Pterotheca expansa 
Orthoceras sociale 
Spyroceras bilineatum 
Tripteroceras planoconvexum 
Zitteloceras billingsi 
Bathyurus extans 
Bathyurus spiniger 
Bumastus milleri 
Ceraurus pleurexanthemus 
Isotelus gigas 
Pterygometopus intermedius 
* Pterygometopus lincolnensis 
Leperditia fabulites 
* Technophorus bellistriatus 
