| Meadowtownella | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Odontopleurida |
| Family: | †Odontopleuridae |
| Genus: | †Meadowtownella Pribyl & Vanek, 1965 |
| Diversity | |
| 19 species | |
Meadowtownella is a genus of odontopleurid trilobite that lived during the Ordovician period in a wide range being found in the United States, Canada, Sweden, Norway, Scotland, Wales, England, Latvia and Portugal.
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) | |
| M. bestorpensis | Bruton (1966) | Sweden | Caradoc—Ashgill (Katian) | |
| M. bucculenta | McNamara (1979) | England, Norway | Ashgill (Katian) | |
| M. caractaci | Salter (1853), Dean (1963) | England, Ireland | Late Caradoc (Katian) | |
| M. crosotus | Locke (1843) | United States | Late Caradoc (Katian) | |
| M. evoluta | Törnquist (1884), Bruton (1966) | Sweden, Norway, Wales, England, Latvia | Ashgill (Katian) | |
| M. girvanesis | Reed (1914) | Scotland | Ashgill (Katian–Hirnatian) | |
| M. harnagensis | Bancroft (1949), Dean (1963) | England | Early Caradoc (Sandbian) | |
| M. horani | Billings (1863) | ? | Early Caradoc (Sandbian) | |
| M. llandowrensis | Price (1980) | Southern Wales | Ashgill (Katian) | |
| M. mendica | Siveter (1989) | Ireland | Silurian (Wenlock) | |
| M. multispinosa | Bruton (1965), Hansen (2009) | Norway | Late Llanvirn (Darriwilian) | |
| M. rorringtonensis | Whittard (1961) | Shelve Inlier, Wales | Caradoc (Katian) | |
| M. sacerdos | Lespérance (1998) | Quebec | Late Ashgill (Katian–Hirnantian) | |
| M. semievoluta | Reed (1910), Dean (1962) | England | Caradoc (Sandbian) | |
| M. serrata | Conway & Botting, 2011 | Mid-Wales | Middle Ordovician (Llanvirn) | |
| M. simulatrix | Whittard (1961) | Shelve Inlier, Wales | Late Llanvirn (Darriwilian) | |
| M. trentonensis | Hall (1847), Brett et al. (1999) | United States | Late Caradoc (Katian) | |
| M. whitei | Whittard (1961) | Shelve Inlier, Wales | Late Llanvirn (Darriwilian) | |
| M. yunnanensis | Wei, X., Zhan, R., Yan, G., Zhang, X., & Wang, G., 2025 | South China | End-Ordovician |
Some species have been found in Gilwern Hill in Wales, but tend only to be found in the lower portions of the Kope Formation in Ohio. They can also found in Trenton Group rock units in New York State, Ontario and Quebec. South China during the during the recovery from the Late Ordovician mass extinction was host to many endemic species and genera of trilobites such as Meadowtownella yunnanensis.
It is similar to Acidaspis cincinnatiensis but without the occipital spine.
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