Meadowtownella Taxonomy
This genus was described in 1965 by Pribyl and Vanek. The genus currently contains around 20 described species. They are listed below:
Species
Authority
Occurrence
Age
Refs
M. ascitus Whittington, 1956
United States Caradoc (Sandbian )[ 2]
M. bestorpensis Bruton (1966)
Sweden Caradoc—Ashgill (Katian )
[ 2]
M. bucculenta McNamara (1979)
England , Norway Ashgill (Katian)
[ 2]
M. caractaci Salter (1853), Dean (1963)
England, Ireland
Late Caradoc (Katian)
[ 2]
M. crosotus Locke (1843)
United States
Late Caradoc (Katian)
[ 2]
M. evoluta
Törnquist (1884), Bruton (1966)
Sweden, Norway, Wales , England, Latvia
Ashgill (Katian)
[ 2]
M. girvanesis Reed (1914)
Scotland Ashgill (Katian–Hirnatian )
[ 2]
M. harnagensis Bancroft (1949), Dean (1963)
England
Early Caradoc (Sandbian )
[ 2]
M. horani Billings (1863)
?
Early Caradoc (Sandbian)
[ 2]
M. llandowrensis Price (1980)
Southern Wales Ashgill (Katian)
[ 2]
M. mendica Siveter (1989)
Ireland
Silurian (Wenlock )[ 2]
M. multispinosa Bruton (1965), Hansen (2009)
Norway
Late Llanvirn (Darriwilian )
[ 2]
M. rorringtonensis Whittard (1961)
Shelve Inlier , WalesCaradoc (Katian)
[ 2]
M. sacerdos Lespérance (1998)
Quebec Late Ashgill (Katian–Hirnantian)
[ 2]
M. semievoluta Reed (1910), Dean (1962)
England
Caradoc (Sandbian)
[ 2]
M. serrata Conway & Botting, 2011
Mid-Wales Middle Ordovician (Llanvirn)[ 2]
M. simulatrix Whittard (1961)
Shelve Inlier, Wales
Late Llanvirn (Darriwilian)
[ 2]
M. trentonensis Hall (1847), Brett et al. (1999)
United States
Late Caradoc (Katian)
[ 2]
M. whitei Whittard (1961)
Shelve Inlier, Wales
Late Llanvirn (Darriwilian)
[ 2]
M. yunnanensis Wei, X., Zhan, R., Yan, G., Zhang, X., & Wang, G., 2025
South China End-Ordovician [ 3]
Description
It is similar to Acidaspis cincinnatiensis[ 6]
References
↑ "Meadowtownella" . Paleobiology Database. Retrieved 7 September 2009 .[ permanent dead link ] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Conway, Tim & Botting, Joseph. (2012). Description and ecology of a new Middle Ordovician (Llanvirn) odontopleurid trilobite from the Builth Inlier of Mid-Wales, with a review of the genus Meadowtownella. Geological Magazine. 149. 10.1017/S0016756811000707. ↑ Wei, X., Zhan, R., Yan, G., Zhang, X., & Wang, G. (2025). The earliest known recovery trilobite faunas following the Late Ordovician mass extinction (LOME) in South China and their ecological distribution. Journal of Systematic Palaeontology , 23 (1). https://doi.org/10.1080/14772019.2025.2461362 ↑ "Trenton Group, NGMDB product page for 98670 On USGS" .↑ www.tandfonline.com . doi :10.1080/14772019.2025.2461362 https://www.tandfonline.com/action/cookieAbsent . Retrieved 2026-05-12 . ↑ "Acidaspis On UGA Stratigraphy Lab" .
