- U V W X Y Z †Hadropipetta †Hadropipetta
ancora †Hamburgia †Hamburgia
chappelensis – type
locality for
species †Hamburgia
texana †Haplistion †Haplistion...
- †Ptychopleurella †Ptychopleurella
rugiplicata †Pudoproetus †Pudoproetus
chappelensis †Pulchratia †Pulchrilamina †Pulchrilamina
spinosa †Punctaparchites †Punctaparchites...
