TABLE 1. Diversity and depositional settings of Devonian thylacocephalans.
| Series | Age | Occurrence | Species | Environment | Lithology | References |
| Early Devonian | Late Emsian | Várův mill and Pekárkův mlýn, Czech Republic | Concavicaris desiderata (Barrande 1872) | subtidal quiet environment | calcareous intercalation in black shales | Barrande, 1872; Chlupáč, 1963 |
| Middle/Late Devonian | Na | Route 30, Grand Gorge, New York, USA | Concavicaris ? sp. indet. | tidal channels, brackish floodplain | micaceous siltstone | Stigall and Hendricks, 2007 |
| Late Devonian | Early Frasnian | Gogo station, Fitzroy basin, Australia | Concavicaris campi Briggs and Rolfe, 1983 | inter-reef basin, marginal slope | calcareous concretions in black shales | Briggs and Rolfe, 1983; Broda et al., 2020 |
| Concavicaris glenisteri Briggs and Rolfe, 1983 | inter-reef basin, marginal slope | calcareous concretions in black shales | Briggs and Rolfe, 1983; Broda et al., 2020 | |||
| Concavicaris milesi Briggs and Rolfe, 1983 | inter-reef basin, marginal slope | calcareous concretions in black shales | Briggs and Rolfe, 1983; Broda et al., 2020 | |||
| Concavicaris playfordi Briggs and Rolfe, 1983 | inter-reef basin, marginal slope | calcareous concretions in black shales | Briggs and Rolfe, 1983; Broda et al., 2020 | |||
| Harrycaris whittingtoni Briggs and Rolfe, 1983 | inter-reef basin, marginal slope | calcareous concretions in black shales | Briggs and Rolfe, 1983; Broda et al., 2020 | |||
| “Ainiktozoon“ sp. | Lagoonal environment | thin-bedded, dark limestones | Heidtke and Krätschmer, 2001 | |||
| Fammenian | Hády quarry, Brno, Czech Republic | Concavicaris incola Chlupáč, 1963 | hemipelagic slope | black, calcareous shales | Chlupáč, 1963; Broda et al., 2020 | |
| Early Fammenian | Hády quarry, Brno, Czech Republic | Concavicaris martinae Broda et al., 2020 | low-energy slope, well below storm-wave base | black shales | Broda et al., 2020 | |
| Holy Cross Mountains, Poland | Concavicaris pikae Broda et al., 2020 | deep shelf, under the storm wave-base level | thin-bedded, laminated, dark, carbona- ceous shales |
Zatoń et al., 2014; Broda and Zatoń, 2017; Broda et al., 2020 | ||
| Woodruff Creek, Nevada, USA | Concavicaris woodruffensis Broda et al., 2020 | shallow marine shelf | dark grey mudstones | Briggs and Rolfe, 1983; Broda et al., 2020 | ||
| Middle Fammenian | Madène El Mrakib, Anti-Atlas, Morocco | Concavicaris submarinus Jobbins et al., 2020 | epicontinental basin | haematite‐rich concretions in claystones | Jobbins et al., 2020 | |
| Kattensiepen quarry, Rhenish massif, Germany | Suttropcaris bottkei Koch et al., 2003 | Na | bituminous calcareous nodules in black shales | Koch et al., 2003; Rolfe and Dzik, 2006 | ||
| Late Fammenian | Cleveland shale, Ohio, USA. | Concavicaris aff. bradleyi | epicontinental foreland basin, below storm-wave base | black shales | Briggs and Rolfe, 1983 | |
| Arbuckle mountain, Oklahoma, USA | Concavicaris elytroides (Meek, 1872) | offshore, deep, quiet-water settings basin | phosphatic concretions in black shales | Cooper, 1932 | ||
| Concavicaris woodfordi (Cooper, 1932) | offshore, deep, quiet-water settings basin | phosphatic concretions in black shales | Cooper, 1932; this paper |
TABLE 2. Measurements on the shield of Concavicaris woodfordi (Cooper, 1932). Abbreviations: l r, length of the rostrum; ls, length of the shield; lw, length of the shield without the rostrum; ha, anterior height; hmax, maximal height of the shield; hp, posterior height; w, width.
| ls | lw | lr | ha | hmax | hp | w |
| >54.2 mm | Na | Na | ~11.3 mm | ~25.3 | >7.7 mm | ~15.6 mm |
