Callobatrachus sanyanensis Fossil

[Crazyhen]

Hi, guys, this frog fossil was said to be collected from Liaoning, China.  It has been repaired as the original plate is broken into several pieces.  But do you think it is a genuine one?

[piranha]

Yes, authentic.  Here is the paper that first described it:

 

Wang, Y., & Gao, K. (1999)

Earliest Asian discoglossid frog from western Liaoning.

Chinese Science Bulletin, 44(7):636-642   PDF LINK

[oilshale]

Authentic. Name is not Callobatrachus sanyanensis anymore; new name is Liaobatrachus beipiaoensis (Gao and Wang, 2001). Please check: L, Rocˇek Z, Wang Y, Jones MEH (2013) Anurans from the Lower Cretaceous Jehol Group of Western Liaoning, China. PLoS ONE 8(7): e69723. doi:10.1371/journal.pone.0069723.
You can download the paper here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0069723

Have fun

Thomas

[-Andy-]

Looks real to me.

[piranha]

On 11/29/2017 at 10:33 PM, oilshale said:

...Name is not Callobatrachus sanyanensis anymore; new name is Liaobatrachus beipiaoensis (Gao and Wang, 2001).

(2013) Anurans from the Lower Cretaceous Jehol Group of Western Liaoning, China. PLoS ONE 8(7): e69723. doi:10.1371/journal.pone.0069723.
You can download the paper here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0069723

 

 

The other frog thread by Crazyhen reminded me of this. 

Evidently Callobatrachus sanyanensis still remains vaild: 

 

text from:

 

Gao, K.Q., & Chen, J. (2017)

A new crown-group frog (Amphibia: Anura) from the Early Cretaceous of northeastern Inner Mongolia, China.

American Museum Novitates, (3876):1-39  PDF LINK

 

"Another nominal taxon (Liaobatrachus Ji and Ji, 1998) from the Yixian Formation is here treated as a nomen dubium (but see Dоng et al., 2013), because the poorly preserved holotype specimen (GMV 2126) provides insufficient information to permit recognition of this as a distinct species.  Dоng et al. (2013) provided a taxonomic revision of the Jehol fossil frogs, in which the three taxa (Callobatrachus, Mesophryne, and Yizhoubatrachus) were grouped collectively in a single genus and were synonymized with Liaobatrachus.  This revision, however, remains contentious and is not supported by a recent phylogenetic analysis (Chen et al., 2016).  Here we treat the three Jehol frogs as independent taxa and keep their original names."