Talk:Laramie Formation

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Paleobiota help

Code

This section contains pre-made code that can be copy and pasted into articles containing paleobiota tables. To save space, not all of the code is visible, additional code can be found by simply viewing this section's edit page.

Premade rowspans:

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Replacement headings for "Presence" column

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Replacement headings for "Taxa" column

Cell background colors

The background colors of the cells are a means to communicate the relevant organism's taxonomic status.

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text; ~~crossed out~~ taxa are discredited.

Red for reclassified and preoccupied

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Purple for taxa falsely reported as present:

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Peach for Ichnotaxa:

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Question about Laramie Formation and possible extention to Tyrannosaurus and Triceratops range

Currently, the Triceratops range is from 68 to 66 Ma. However, this page states that the age of the Laramie Formation is 69 to 68 Ma, and the Triceratops specimens in this formation are the oldest known. Could this extend the range of Triceratops and Tyrannosaurus, or are they only found at the upper part of the Laramie Formation?

"Skull of Triceratops from the Laramie Formation. This skull may be the oldest known for the genus"

"The palynomorphs indicate an early Maastrichtian age (68-69 mya), which is supported by magnetostratigraphy."

--Paleomario66 (talk) 16:54, 13 May 2018 (UTC)[reply]

It's been suggested that the Laramie Triceratops skull may not be a Triceratops at all, but rather an Eotriceratops or an Ojoceratops, due to the presence of a broad nostril flange. The Tyrannosaurus fossils, however, are still believed to belong to that genus. — Preceding unsigned comment added by 68.71.166.188 (talk) 06:51, 6 November 2021 (UTC)[reply]