Girtyoceratidae Wedekind, 1918

Titus, A. L., Korn, D., Harrell, J. E. & Lambert, L. L., 2015, Late Viséan (late Mississippian) ammonoids from the Barnett Shale, Sierra Diablo Escarpment, Culberson County, Texas, USA, Fossil Record 18 (2), pp. 81-104 : 86

publication ID

https://doi.org/ 10.5194/fr-18-81-2015

publication LSID

lsid:zoobank.org:pub:6C6A1411-F88F-45C2-BA4A-D97C4CD4B415

DOI

https://doi.org/10.5281/zenodo.11587064

persistent identifier

https://treatment.plazi.org/id/039287BE-FC59-FFA9-FCE6-F9EAFC48F8C1

treatment provided by

Felipe

scientific name

Girtyoceratidae Wedekind, 1918
status

 

Family Girtyoceratidae Wedekind, 1918 View in CoL

Family diagnosis: Girtyocerataceae with ontogenetically changing conch shape; inner whorls evolute, umbilicus closing during ontogeny, adult stage often discoidal and oxyconic. Ornament with biconvex growth lines. Suture line with V-shaped external lobe and rounded ventrolateral saddle; adventive lobe V-shaped with slightly sinuous flanks.

Remark: For the genus composition of the family and a discussion of the characteristics and limits, see Korn and Titus (2011).

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