South Africa’s oldest ophiuroid fossils provide rare insights into the origination of the Malvinoxhosan Realm
- Gess, Robert W, Reddy, Caitlin
- Authors: Gess, Robert W , Reddy, Caitlin
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480595 , vital:78458 , https://hdl.handle.net/10520/ejc-sajsci-v120-n11-a11
- Description: Recent description of the oldest recorded brittle stars (ophiuroids) from the southern hemisphere revealed two distinct taxa of early Pragian age (approximately 410 million years old). Whereas one of the brittle stars belonged to a species previously described from younger strata, the others represent an unusually spiny taxon formerly unknown to science. Recovered from the 'upper member' of the Baviaanskloof Formation (the uppermost unit of the Table Mountain Group), they offer insights into the earliest recorded phase of the endemic Malvinoxhosan Realm, deposited in polar regions of the ancient supercontinent of Gondwana, and better known from the overlying Bokkeveld Group.
- Full Text:
- Authors: Gess, Robert W , Reddy, Caitlin
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480595 , vital:78458 , https://hdl.handle.net/10520/ejc-sajsci-v120-n11-a11
- Description: Recent description of the oldest recorded brittle stars (ophiuroids) from the southern hemisphere revealed two distinct taxa of early Pragian age (approximately 410 million years old). Whereas one of the brittle stars belonged to a species previously described from younger strata, the others represent an unusually spiny taxon formerly unknown to science. Recovered from the 'upper member' of the Baviaanskloof Formation (the uppermost unit of the Table Mountain Group), they offer insights into the earliest recorded phase of the endemic Malvinoxhosan Realm, deposited in polar regions of the ancient supercontinent of Gondwana, and better known from the overlying Bokkeveld Group.
- Full Text:
What does practising the Adaptive Systemic Approach offer engaged sustainability science?
- Palmer, Carolyn G, Tanner, Jane L
- Authors: Palmer, Carolyn G , Tanner, Jane L
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480784 , vital:78476 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a8
- Description: Engaged sustainability science is a relational response that mobilises knowledge into constructive action. However, theoretical and conceptual development has outstripped effective practice. Some of the barriers to practice include: (1) integrative theories, concepts and vocabulary that are not familiar to most disciplinary scholars; (2) literature that supports these perspectives is dispersed and difficult to organise into practical steps; (3) the skill-set for effective engagement is rare, and includes facilitating co-learning that is attentive to power and equity. By providing a clear set of activities, the Adaptive Systemic Approach enables novice and experienced research practitioners to start, and to follow a pathway.
- Full Text:
- Authors: Palmer, Carolyn G , Tanner, Jane L
- Date: 2024
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/480784 , vital:78476 , https://hdl.handle.net/10520/ejc-sajsci-v120-n9-a8
- Description: Engaged sustainability science is a relational response that mobilises knowledge into constructive action. However, theoretical and conceptual development has outstripped effective practice. Some of the barriers to practice include: (1) integrative theories, concepts and vocabulary that are not familiar to most disciplinary scholars; (2) literature that supports these perspectives is dispersed and difficult to organise into practical steps; (3) the skill-set for effective engagement is rare, and includes facilitating co-learning that is attentive to power and equity. By providing a clear set of activities, the Adaptive Systemic Approach enables novice and experienced research practitioners to start, and to follow a pathway.
- Full Text:
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