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Distomodus staurognathoides
Taxonomy
Hadrognathus staurognathoides was named by Walliser (1964). It is a 3D body fossil.
It was recombined as Distomodus staurognathoides by Barrick and Klapper (1976), Over and Chatterton (1987) and Waid and Cramer (2017).
It was recombined as Distomodus staurognathoides by Barrick and Klapper (1976), Over and Chatterton (1987) and Waid and Cramer (2017).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Hadrognathus staurognathoides Walliser p. 35 figs. pl. 5, fig. 2; pi. 13, figs 6-15 |
| 1964 | Roundya brevialata Walliser p. 69 figs. Taf. 4, Fig. 16; Taf. 31, Fig. 8-10 |
| 1964 | Roundya caudata Walliser pp. 70 figs. Taf. 5, Fig. 9; Taf. 31, Fig. 18—19 |
| 1972 | Hadrognathus staurognathoides Aldridge pp. 180 - 181 figs. Plate 2, figs 8, 10, II |
| 1976 | Distomodus staurognathoides Barrick and Klapper |
| 1987 | Distomodus staurognathoides Over and Chatterton |
| 2017 | Distomodus staurognathoides Waid and Cramer pp. 21-22 figs. 8.18, 8.21-22 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Distomodus staurognathoides Walliser 1964
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Invalid names: Hadrognathus brevialata Walliser 1964 [synonym], Hadrognathus caudata Walliser 1964 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Aberhan 1992 | |||||
Age range: base of the Rhuddanian to the top of the Sheinwoodian or 443.40000 to 430.50000 Ma
Collections (153 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ashgill - Wenlock | Canada (Nunavut) | Distomodus staurognathoides (188131 188134) | |
| Silurian | USA (Indiana) | Hadrognathus staurognathoides (180893 180909 180920 180933) Hadrognathus staurognathoides, Roundya caudata (180915 180923 180926) Hadrognathus staurognathoides, Roundya caudata, Roundya brevialata (180936) Roundya brevialata (180907) Roundya caudata (180927) | |
| Rhuddanian | Canada (Cape Manning) | Distomodus staurognathoides (211144) | |
| Rhuddanian - Aeronian | Canada (Manitoba) | Distomodus staurognathoides (177652) | |
| Rhuddanian - Aeronian | Russian Federation (Siberia) | Hadrognathus staurognathoides (206541 206542) | |
| Rhuddanian - Aeronian | Canada (Quebec) | Distomodus staurognathoides (142777 142800 142814 142818 142819 142820 142821 142822 142823 142824 142825 142826 143193) | |
| Llandovery | USA (Kentucky) | Hadrognathus staurognathoides (181734 181739 181750 181798 181828 181829 181834 181836 181840) | |
| Llandovery | USA (Indiana) | Hadrognathus staurognathoides (180888 180898 180935) Hadrognathus staurognathoides, Roundya caudata (180906 180908 180913 180932) Hadrognathus staurognathoides, Roundya caudata, Roundya brevialata (180914) Roundya caudata (180881 180902 180910 180911 180919 180921 180931) | |
| Llandovery | USA (Ohio) | Hadrognathus staurognathoides (182044 182045 182122) | |
| Llandovery | Estonia (Rapla) | Distomodus staurognathoides (195609) | |
| Llandovery | USA (Iowa) | Distomodus staurognathoides (178708 178714 178715 191065 191068 191071 191072 191073 191075 191076 191077 191083) | |
| Llandovery | Canada (British Columbia) | Distomodus staurognathoides (177948 177949 177950 177953 177954 177955 177956 177968) | |
| Aeronian | Canada (Quebec) | Distomodus staurognathoides (233159) | |
| Aeronian - Telychian | Greenland | Distomodus staurognathoides (183212 183223 183224) | |
| Aeronian - Telychian | Canada (Nunavut) | Distomodus staurognathoides (188150 188151 188152) | |
| Aeronian - Telychian | China | Hadrognathus staurognathoides (197405) | |
| Aeronian - Telychian | Canada (Manitoba) | Distomodus staurognathoides (177637 177638 177648 177653 177656 177662 177663 177686) | |
| Telychian | Canada (Nunavut) | Distomodus staurognathoides (211228 211229) | |
| Telychian | Estonia | Distomodus staurognathoides (183405 183410 183411 183412 183413 183415 183416 183417 183418 183422 183423 183424 183425 183426) | |
| Telychian | Canada (Québec) | Distomodus staurognathoides (24544) | |
| Telychian | Greenland | Distomodus staurognathoides (182438 182478) | |
| Telychian | USA (Nevada) | Hadrognathus staurognathoides (180188 180189 181135 181136 181150) | |
| Telychian | USA (Utah) | Distomodus staurognathoides (185620) | |
| Telychian | United Kingdom (England) | Hadrognathus staurognathoides (184764) | |
| Telychian | Canada (Cornwallis Island) | Distomodus staurognathoides (211087 211089 211098 211099 211101 211105 211107) | |
| Telychian | Canada (Cape Manning) | Distomodus staurognathoides (211218) | |
| Telychian - Sheinwoodian | USA (Indiana) | Hadrognathus staurognathoides (180917) Hadrognathus staurognathoides, Roundya caudata (180901) | |
| Niagaran - Sheinwoodian | Canada (Québec) | Distomodus staurognathoides (25052) | |
| Niagaran | Canada (Québec) | Distomodus staurognathoides (25035 25051) | |
| Sheinwoodian - Homerian | Canada (Manitoba) | Distomodus staurognathoides (177649 177664 177687) | |
| Wenlock | Canada (Ontario) | Distomodus staurognathoides (744 746) Distomodus staurognathoides, Johnognathus huddlei (745) | |
| Wenlock | USA (Tennessee) | Distomodus staurognathoides (164035 164060) | |
| Wenlock | USA (New York) | Distomodus staurognathoides (741 742 766 767 779 780 781) Distomodus staurognathoides, Johnognathus huddlei (768) | |
| Wenlock | Austria | Distomodus staurognathoides (187798) | |
| Wenlock | Poland | Distomodus staurognathoides (163621 163623 163624 163625) |