Sorry about the last message, I got the two limestone formations switched
Mornsheimer Limestone is younger than Solnhofen Limestone. Both are part of the Franconian Alb in southern Germany.
Mornsheimer is upper Tithonian (Ammonite zone moernheimerensis)
Solnhofer Limestone (upper and lower members) is middle to upper Tithonian (Ammonite zones ruepplianus, reidlingensis & eigeltingensis)
Ref:ÂOliver W.M. Rauhut, Christian Foth and Helmut Tischlinger, 2018. "The oldest Archaeopteryx (Theropoda: Avialiae): a new specimen from the Kimmeridgian/Tithonian boundary of Schamhaupten, Bavaria" PeerJ, January 2018.
On March 15, 2020 at 12:15 AM John Schneiderman <john-schneiderman@cox.net> wrote:
Solnhofen Limestone (Malm Zeta 2, Schweigert, 2007)
ammonite zoneÂSubplanites rueppellianus
Middle Tithonian 152.1 (+/- 0.9) - 145 mya
Mornsheimer Limestone (Malm Zeta 3, Wellnhofer, 1970)
Lower Tithonian
On March 14, 2020 at 5:33 PM Gregory Paul <gsp1954@aol.com> wrote:
I'm finding differing information on the age of the Solnhofen & Mornsheimer limestones. If anyone knows the current consensus on their ages in terms of the stages they are in (late Kimmeridgian, early Tithonian, whatever) please let me know.ÂGSPaulÂ
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