Plate 15, Figure 4, from the original description (Taylor, 1942). The sacrum of Anchylorana dubita Holotype, KUVP 6377; (A) dorsal view, (B) ventral view.
AMPHIBIA (Amphibians) ANURA (Frogs) RANIDAE (True Frogs)

Doubt Frog
Anchylorana dubita Taylor 1942


Conservation Status:

Extinct





Diagnosis:
Sacral and preceding (eighth) vertebrae fused; the anterior vertebra biconcave, penetrated by a circular canal; sacral part with the convex articular surface penetrated for a short dis- tance by a groove, but the centrum is not perforated, and there is no posterior opening present; coccygeal condyles not large. Characters of the diapophyses not known.The type consists of a sacral vertebra, fused to the preceding (eighth) vertebra, but with the transverse processes of both broken away at the base.



Distribution:
Known only from the type locality. Rexroad member, upper Pliocene, locality 3, about 16 miles southwest of Meade, Meade county, Kansas.
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  • Occurrence Summary:  
  • 1
    Records 
  • 1
    Museum Vouchers 
  • 0
    Other Observations 
Some county occurrences indicated below may be too imprecise to map above.
County Breakdown: County Name (# occurrences):
Meade (1);

Natural History:


Remarks:


Bibliography:
1942 Taylor, Edward H. Extinct toads and frogs from the upper Pliocene deposits of Meade County, Kansas. University of Kansas Science Bulletin 28(10):199-235
1945 Lane, Henry H. A survey of the fossil vertebrates of Kansas, Part II. Amphibia. Transactions of the Kansas Academy of Science 48(3):286-316
1963 Holman, J. Alan. Anuran sacral fusions and the status of the Pliocene genus Anchylorana Taylor. Herpetologica 19():160-166
1985 Schultze, Hans-Peter, L. Hunt, J. Chorn, and A. M. Neuner. Type and figured specimens of fossil vertebrates in the collection of the University of Kansas Museum of Natural History. Part II. Fossil amphibians and reptiles. University of Kansas Museum of Natural History, Miscellaneous Publications (77):1-66
Also check on several listed names not in KHA as KS taxa.
2012 Martin, Carolina (Albaladejo), Borja Sanchiz, and Miguel Angel Alonso-Zarazaga. Nomenclatural notes on living and fossil amphibians. Graellsia 68(1):159-180
References Kansas specimens of Bufo hibbardi from Edson Quarry, Bufo pliocompactilis from WaKeeney, Bufo repentinus from Cragin Quarry, Bufo rexroadensis and Bufo suspectus from Fox Canyon, Bufo spongifrons from Long Island Quarry, and nine Rana from Rexroad.
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Travis W. Taggart © 1999-2025 — w/ Sternberg Museum of Natural History, Fort Hays State University